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Integrated Marine Systems Catalog DRS TECHNOLOGIES

Integrated Marine Systems Catalog DRS TECHNOLOGIES

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Thank you for choosing <strong>DRS</strong> to meet your system needs. <strong>DRS</strong>’offerings are vast and range from core hardware and softwareproducts to complete system integration and installationservices. This <strong>Integrated</strong> <strong>Marine</strong> <strong>Systems</strong> catalog provides anoverview of readily available products and services, amongthem: Propulsion System Integration, Power Distribution,Power Conversion, Heating Ventilation Air Conditioning andRefrigeration, Machinery Plant Controls, Power Conditioning,Electric Motors and Turbo Machinery.The offerings in this catalog touch on <strong>DRS</strong>’ product and designcapabilities. Our full service approach includes a team ofproduct and system experts who are skilled at guiding youthrough the process of defining, designing and meeting yourcomponent or system needs.This catalog combines the former Ship <strong>Systems</strong> catalog of<strong>DRS</strong> Power & Control Technologies with the products andcapabilities of <strong>DRS</strong> Marlo Coil, <strong>DRS</strong> Pivotal Power and <strong>DRS</strong>Power Technology. In addition to expanding the offerings foundin this catalog, you will find full color photos of our products,and site specific contact information to connect you directlywith the product specialist.For those familiar with the former Ship Controls <strong>Systems</strong> <strong>Catalog</strong>you will find the Motor Controllers & Accessories section to belargely reflective of that catalog, with part numbering and pagedesigns that reflect the history of product presentation for easeof use.<strong>DRS</strong> is ready to serve with a long history of successfully fieldedproduct and a talented and creative design team.Contact information by product area is found to the right on this page. Toinquire further or place an order, simply contact the facility by phone orvia email. To expedite response to your request please provide us with thefollowing upon inquiry:• Your name• Your contact telephone number and email address• The name of your organization• The country in which your organization resides• The product description and, if applicable, the catalogpage number upon which it appearsA product specialist will contact you directly within 24 hours of your receiptof your inquiry.NEW PRODUCTS<strong>DRS</strong> Power & Control Technologies, Inc.4265 N. 30th Street, Milwaukee, WI 53216Phone: 414.875.2900 Fax: 414.875.4319Email: IMS-BD@drs.comMotor Control AND OPERATOR INTERFACESpecification AND DOCUMENTS<strong>DRS</strong> Power & Control Technologies, Inc.4265 N. 30th Street, Milwaukee, WI 53216Phone: 800.552.2829 Fax: 414.875.4764Email: IMS-BD@drs.comMOTOR Control and Operator Interface<strong>DRS</strong> Power & Control Technologies, Inc.4265 N. 30th Street, Milwaukee, WI 53216Phone: 800.552.2829 Fax: 414.875.4764Email: IMS-BD@drs.comPower Solutions<strong>DRS</strong> Pivotal Power, Inc.150 Bluewater Rd., Bedford, NS B4B 1G9Phone: 902.835.7268 Fax: 902.835.6026Email: info@pivotalpower.comHeating, Ventilating,Air Conditioning & REFRIGERATION<strong>DRS</strong> Marlo Coil6060 Highway PP, High Ridge, MO 63049-0171Phone: 636.677.6600 Fax: 636.677.1203Email: marlo.navysales@drs.comPermanent Magnet MotorsTURBO MACHINERY<strong>DRS</strong> Power Technology, Inc.166 Boulder Drive, Suite 201E, Fitchburg, MA 01420Phone: 978.353.5500 Fax: 978.353.5107Email: powertechnology.info@drs.comUpdated list prices and PDF version of this catalog are available at <strong>DRS</strong>.com. 3


Description Type Pages Description Type PagesPilot Devices and Other ItemsSeparate Flush Mounting Pushbuttonsand Indicating Lights 6981ED165 66-686981ED166 66-68Replacement Indicating Light Transformers 69Separate Flush MountingSelector Switches 6981ED200 70-71Watertight Remote Control Stations 6981 72-76Explosion-Proof RemoteControl Stations 6981 77-78Cast Brass Watertight RemoteControl Stations 6981 79-80“Emergency Stop” PushbuttonStations 6981 81Flush Mounting Drum Type Transferor Selector Switch 6982-T5 82Drum Type Transfer or Selector Switch 6982-T5 83-84Cam Type Master Switch 6982-T8 85Pedestal Mounted Cam TypeMaster Switch 6982-T9 86Snap Action Limit Switches 6984NL 87-89Silicon Bronze Explosion Proof /Watertight Limit Switches 6984NLX-W 90Snap Action Limit Switch 6984-T11/T1291-94Geared Type Limit Switch 6984 95Overtemperature Monitor 6991 96Overspeed Trip Drive 6999 97Navy Control Circuit Wiring 98Navy Power Terminal Blocks,100, 150 and 300 Amperes 993 KVA AC UPS 1056 KVA AC UPS 106Helicopter Starter 107<strong>DRS</strong> Trusted Series 108-109Forklift Battery Charger 110Heating, Ventilating, Air Conditioning& REFRIGERATIONVentilation Heaters S21X-T38X 113Unit Coolers UW51-55 114Cooling Coils (50 Series) DW51-58 115Cooling Coils (60 Series) DW61-68 116Fan Coil Assemblies FCA 117Fan Coil Units FCU H/V 118Spruance Class Fan Coil Units FCU 1-9 119Unit Heaters 11-16 120Gravity Cooling Coils GW/GF 1,3 & 5 121Permanent Magnet MOTORSElectric Ship Propulsion Motors 123Hybrid Electric Ship Propulsion Motors/Generators 124Permanent-Magnet Axial Air Core (PAAC)Motors and Generators 125Permanent-Magnet Axial (PA) Series PMMotors and Generators 126Permanent-Magnet Radial FieldEmbedded Magnet (PRE) Series Motors 127Rotating Machinery Packaging — SteamTurbine Design, Assembly and Repair 128Power Solutions0.8 KW DC UPS 1012.4 KW DC UPS 1021.0 KW DC Rectifier 1032 KVA AC UPS 104Updated list prices and PDF version of this catalog are available at <strong>DRS</strong>.com. 5


<strong>Integrated</strong> <strong>Marine</strong> <strong>Systems</strong>Propulsion <strong>Systems</strong> Integration and Power Distribution<strong>DRS</strong> has extensive marine systems experience showcasingcapabilities developed through a century of proudly servingthe U.S. Navy and our international allies. Whether it’s designand/or selection of a single component or full integration ofevery aspect of a marine propulsion system, our <strong>Integrated</strong><strong>Marine</strong> <strong>Systems</strong> (IMS) team is focused on developing anddeploying the most advanced power generation, conversion,distribution, and propulsion control technology in the world.Our product is designed and manufactured to meet stringentstandards for reliability, durability and maintainability. Amongthe standards used are: Military Specifications (MIL-SPEC),American Bureau of Shipping (ABS), Institute of Electrical andElectronics, Engineers(IEEE) standards, ISOCertified - 9001 and14001.As customer-centricpartners <strong>DRS</strong>listens and deliverssolutions through allproduct offerings.Our commitment toexecution excellence, technologyinnovation and broadly diversifiedvendor partnerships ensuresdeployment of superior marinesystems, transforming the navaland marine forces of today into highly equipped and versatilewar fighters of tomorrow.Our IMS product and services portfolio is broad andadaptable including:Propulsion System Integration<strong>DRS</strong>’ comprehensive approach to propulsion systemintegration encompasses design, assembly, test, installationand support. Leveraging our significant experience incomponent design and system deployment, our productsand systems can be found on a variety of ship classesranging in complexity from nuclear submarines to surfacecombatant support ships.Power Distribution<strong>DRS</strong> provides equipment and systems across the fullspectrum of shipboard power distribution need includingmedium and low voltage switchboards and load centers,hardened circuit breakers, and integrated powermanagement systems.Our new <strong>Integrated</strong> Fight-Through Power (IFTP) system isa redundant power conversion-based zonal power systemdesigned to support requirements for growing powerefficiency demands on future navy ships.Machinery Plant Control andMonitoring <strong>Systems</strong>Our innovative solutions for naval machinery control,automation and networking include ruggedized COTStechnology qualified for shock, vibration, acoustic andEMI requirements. Existing, fielded, and fully qualified <strong>DRS</strong>products include:• Server/Network Cabinets• Logic Processors• Data Acquisition Units• Displays/WorkstationsOpen Architecture Software: OpenSea Developed by <strong>DRS</strong> for naval and marine applications,OpenSea provides the ultimate in open architecture,platform-independent distributed control system (DCS)software. Simple, flexible integration enables improvedlogistical support, enhanced crew training and reducedmanning. Redundant communication assures completecommunication among all major systems.Design | Analyze | Select | Package


Motor Controls and DrivesProudly fielded on every U.S. Navalcombatant since WWII, <strong>DRS</strong>motor control products are provenperformers in harsh marineenvironments. Our rugged variablespeed drives (VSDs) can befound wherevervariable speed/frequency is a keyoperating parameter.We provide a widerange of reliablemotor control anddrive offerings to ourcustomers by leveragingour strong engineering capabilities, fullunderstanding of applicable MIL-SPECs andexperience gained from a history of successful products.Propulsion and Power GenerationPower-dense <strong>DRS</strong> Permanent Magnet (PM) machines offerinnovative solutions for direct drive ship propulsion, hybridelectric drive and power generation for auxiliary systems.Our unique set of core competencies enables us to develop awide range of PM machines in radial and axial-field topologiesthat meet tough standards for military and commercialapplications.PM motors and generatorshave significant advantagesin size, weight and power overconventional motors. They areideal for dimension and/orweight constrained applications wheresignificant torque, high efficiency andprecise control across load and speed variations are essential.Rotating Machinery PackagingAs a full-service equipment packager we have designed and/or assembled aero-derivative gas turbine packages using eachmajor engine manufacturers’ products. These units are inservice in naval and ground power applications around the world.Whether build-to-print production or more extensive systemspackaging is required <strong>DRS</strong> is readyto meet the needs of anymachinery packagingproject.Shipboard Power Conversion and Conditioning<strong>DRS</strong> power conversion and conditioning systems meetstringent specifications and have been proven to performin harsh marine environments that can include extremetemperatures, humidity and high shock and vibration. Ourproducts include variable frequency converters; DC rectifiersfor helicopter starting; portable multiple-battery chargers andreliable uninterruptible power supply (UPS) systems for poweringcritical command, control, communication and navigationequipment on-board naval and marine ships.Heating, Ventilation, Air Conditioningand Refrigeration (HVAC/R)Shipboard environments require proper control over a wide rangeof temperatures to support sailors, systems, ships stores andfire suppression. <strong>DRS</strong> has extensive experience designing andmanufacturing rugged HVAC/Requipment specifically for shipapplications. Our Naval productsare designed to U.S. militaryspecifications and our commercialmarine products are designed to U.S.Coast Guard and American Bureau ofShipping regulations. We offer HVACequipment in many standardsizes and configurations as wellas program specific designs forunique applications.<strong>Integrated</strong> Logistical Support (ILS)<strong>DRS</strong>’ dedication to ILS requirements assures reliability,availability, maintainability and testability across all productlines, including military, commercial, consumer and industrialcustomers. Our capabilities enable us to provide life-cyclesupport for <strong>DRS</strong> manufactured equipment and to tailor specificILS elements to meet unique requirements. <strong>DRS</strong> staff isexperienced and can provide high-quality solutions to meet alllogistics requirements.Life Cycle Support<strong>DRS</strong> provides unequalled technical and post-delivery support.Our world-wide network of <strong>DRS</strong> professionals enable us to havequalified personnel on-location, to any location worldwide within36 hours.We stand ready to meet your system, component or serviceneeds. Contact us at drs.com for more information.| Install | Test | Support | Maintain 7


NEW PRODUCTS<strong>DRS</strong> drives success through innovation and excellence, with a century oftradition and performance providing power and control onboard every Navycombatant since World War II.At the heart of <strong>DRS</strong> success is our evolutionary design process, utilizing,integrating and improving the very best innovations across product lines andthrough successive iterations.Our products and services are found in fully integrated marine systems,ship propulsion and power generation, power distribution conversion andconditioning, as well as motor controls and drives, auxiliary motors andgenerators and shipboard HVAC.For our customers, our depth of experience and breadth of knowledge meansbattle-hardened dependability of parts, components and systems that meet allapplicable specifications and our own stringent quality requirements.


NEW PRODUCTSMIL-SPEC Process Controllers (MSPC)Highlights• Distributed system architecture control• Efficient and robust operation• Autonomous control• Expandable analog and discrete I/O• Expandable LED display• Analog readout displays• System diagnostics• Remote PROFIBUS communication• Navy electronic motor operator- Custom thermal overload trip curves- Full load current sensing from 0.5 to 150 Amps- Voltage sensing from 50 to 550 VoltsMilitary SpecificationsMIL-STD-461MIL-S-901, Grade AMIL-STD-167-1, 4-50 Hz<strong>DRS</strong> is the leader in providing MIL-SPEC solutions for thedemanding maritime market. The latest technology is used inour innovative designs. The self contained Process Controllerintegrates military off the shelf equipment with a MIL-SPECmotor controller to provide a small, lightweight, and costeffective solution. Utilized on the latest U.S. Navy ships forpump controls, the MIL-SPEC qualified Process Controller isdesigned to withstand rugged maritime conditions for the lifeof the ship.Whether for new shipbuilding or modernization programsMSPC is ideal for integrated control, condition basedmaintenance, power monitoring, and interfacing with shipnetwork communications.Controls and indicators are functionally grouped on thecontroller to optimize the human interface, visibility, and easeof use.From power distribution and electrical control productsto ship control automation, <strong>DRS</strong> offers advanced productdevelopment, world-class manufacturing and globalengineering services and support. That is why our productsare found on all U. S. Navy ships since WWII.Monitors• Current• Voltage• Line frequency• Apparent power• Real power• Reactive power• Power factor• Percent FLA• Percent nominal RMS voltage• Elapsed run time• Start count• Run time since startProtective Feature(Can be set as a trip or alarm)• Under current• Over current• Motor JAM trip level• Current imbalance• Under voltage• Over voltage• Voltage imbalance• Single phasing current trip level• Single phasing voltage trip levelUpdated list prices and PDF version of this catalog are available at <strong>DRS</strong>.com. 9


NEW PRODUCTSNavy Electronic Motor Operator(NEMO)NEMO is a product enhancement of our existingN2000 and N2001 products.<strong>DRS</strong>’s Navy Electronic Motor Operator answers the call formodern ship specifications requiring small, simplistic, costeffective and flexible control and communications. Utilizedon the latest U.S. Navy ships for motor control, HVAC control,and ABT control, the MIL-SPEC qualified Navy Electronic MotorOperator is designed to withstand rugged maritime conditionsfor the life of the ship.The <strong>DRS</strong>-PCT Navy Electronic Motor Operator (NEMO) iscomprised of an Electronic Control Module, an OverloadApplication Module, and a solid state Switch module. NEMOintegrates control, motor protection, power monitoring,network communications and local network I/O into a singleunit in accordance with MIL-DTL-2212. NEMO supplies 24VDCfor safe operator control. Configurable discrete inputs andoutputs are provided to satisfy most control applications.An LED display provides operating status, diagnostic andfault information. Two sets of parameters allow one moduleto protect fast and slow speed windings of a motor or toenergize/de-energize two separate loads. All interfaces tothe main power are galvanically isolated to ensure integrity ofthe main bus. The network connection design is modular andadaptable to meet current and future Navy machinery controlnetwork protocols.Features• Configurable control via mini USB port• Adapatble network communication• Local CAN network for I/O expansion• Four character LED display for status• Field upgradeable firmware• Operator safe 24VDC I/O• 5 inputs for control/monitor• 4 outputs for control/timing/alarm• MTBF – 188,000 Hrs at 40° C• Pluggable control terminals• Stud terminals for main power• Galvanic isolation to power lines• Dual parameter sets for fast and slowmotor winding protectionSpecificationsMIL-DTL-2212, including• MIL-STD-461, Surface / Submarine• MIL-S-901, Grade A• MIL-STD-167-1, 33 Hz• MIL-STD-1399, Section 300AEnvironmental PerformanceOperating temperature .......................................... -20 to 65° COperating humidity ................................ 95% Non-condensingStorage temperature .............................................. -40 to 85° CFunctional Ratings(Ratings are nominal unless stated)Power CharacteristicsSupply voltage .............................................................. 440 VACOptional ..................................................................... 115 VACSupply frequency .............................................................. 60 HzSupply isolation (1 minute) ....................................... 2500 VACCurrent sensing ................................................. 0.5 to 30 ArmsOptional ........................................................ 1.2 to 150 ArmsControl CharacteristicsI/O power supply voltage ............................................... 24 VDCI/O power supply capacity ................................................ 20 WInput on state voltage .......................................... 17 to 36 VDCInput on state burden ................................................. 17 mADCInput isolation to chassis ............................................ 500 VDCOutput voltage .............................................. 36 VDC maximumOutput load current ..................................... 100 mA maximumOutput leakage current .................................................. 0.1 mAVoltage drop ....................................................... 0.15 VDC MaxOutput isolation to chassis ......................................... 500 VDCPhysical CharacteristicsFour corner mounting holes......... 0.3 inch (0.8 cm) thick baseWeight................................................................7.7 lbs. (3498 g)Related DocumentationNEMO operation manual.....................................MC-007067/01NEMO engineering configuration tool manual.....MC-002410/23Switch module application manual........................MC-00705510New Products


Navy Electronic Motor Operator(NEMO)Navy Electronic Motor Operator ModelsApplication Current Sensing Control Voltage AssemblyOverload 0.5-30 Internal 440 MC-009557-01External 440 MC-009557-07115 MC-009557-051.2-150 Internal 440 MC-009557-04External 440 MC-009557-08115 MC-009557-06HVAC control 0.5-30 Internal 440 MC-009557-02HVAC monitoringMC-009557-03Bus transfer switch 0.5-30 External 115 MC-009557-09Automatic bus transferMC-009557-104265 N. 30th Street, Milwaukee, WI 53216 | Phone 414.875.2900 | Fax 414.875.4319 | Email IMS-BD@drs.com11


Type ENG-DAU-1Data Acquisition UnitEngineered <strong>Systems</strong>Small Remote Terminal Unit – Single ChassisParameterMax # of I/OCards CapacityType and Capacity I/ODescription(2) x 10 Slot ChassisTypical I/O Is a combo of those below:Max Discrete AC Input – 192Max Discrete AC Output – 96Max Discrete DC Input – 192Max Discrete DC Output – 192Max Analog Input – 48Max RTD/Thermo Input - 36Max Analog Output - 4817561756 XTRockwell Automation1794Vendor I/O Supported1794 XT1734When ordering specify• Power requirements• I/O type• Fieldbus type• Network and fieldbus media type• Redundancy requirements• Ethernet requirements• Number and type of analog I/O• Number and type of digital I/O• Number and type of specialty I/O• Number and type of communication I/O• Visual display/Human Machine Interface requirements• Required environmental qualifications• Required IMO certificationsField BusSiemensRockwell Automation:SiemensS7-300ET200MControlNetDeviceNetEthernet/IPProfiBusModbusModbus/TCPProfibusCanBusProfiNetModbusModbus/TCPGeneralA small, application flexible, MIL-SPEC grade I/O enclosure forengineered naval and marine machinery control applications.Supports both Rockwell Automation and Siemens Hardware.SpecificationsParameterEnclosure DimensionsEnclosure WeightEnclosure TypePower SupplyDescriptionEnclosure: H 22.82” x W 17.5” X D 10.6”Mountings: H 28.39” x W 20.0” X D 15.94”Door Open: H 28.39” x W 21.7” X D 32.42”UnpopulatedPopulatedDrip-proof type120V/220V AC24V DCRedundancyOptionalMediaOptionalProtocolsTCP/IP, UDP# of Ports OptionalEthernetRedundancyOptionalMediaOptional*MIL-STD 901D*MIL-STD 167-1MIL-SPEC*MIL-STD 461*MIL-STD 1399*MIL-STD 8100-60°C OperatingTemperature-20-70°C Operating with Extreme TemperatureI/O ModulesHumidity5-95% Noncondensing* Designed to specifications12New Products


Type ENG-DAU-1Data Acquisition UnitFeatures• Power supply• Optional processor• Fieldbus communications• (1) I/O chassis• Industry standard I/O modules• Internal terminal blocks for field wiring• External power connection with fusing and filtering• Optional signal conditioning• Optional local ethernet switch with downlink and local ports• Optional field bus and ethernet redundancy• Optional fiber optic field bus• Optional in chassis industrial PC• Optional panel mounted LCD display• Optional OpenSea control softwareTypical Writing DiagramDimensional Diagram4265 N. 30th Street, Milwaukee, WI 53216 | Phone 414.875.2900 | Fax 414.875.4319 | Email IMS-BD@drs.com13


Type ENG-DAU-2Data Acquisition UnitEngineered <strong>Systems</strong>Large Remote Terminal Unit – Three ChassisWhen ordering specify• Power requirements• I/O Type• Field bus type• Media• Redundancy requirements• Ethernet requirements• Number and type of analog I/O• Number and type of digital I/O• Number and type of specialty I/O• Number and type of communication I/O• Required environmental qualifications• Required IMO certificationsGeneralA large, application flexible, MIL-SPEC grade I/O enclosure forengineered naval and marine machinery control applications.Supports both Rockwell Automation and Siemens Hardware.SpecificationsParameterEnclosure DimensionsEnclosure WeightEnclosure TypePower Supply14New ProductsDescriptionEnclosure: H 48.0” x W 27.0” X D 12.24”Mountings: H 48.0 x W 27.0” x D 17.99Door Open: H 48.0” x W 53.0” X D 17.99”UnpopulatedPopulatedDrip-proof type120V/220V AC24V DCParameterDescriptionMax # of I/O(3) x 10 Slot ChassisCards CapacityTypical I/O Is a combo of those below:Max Discrete AC Input – 864Max Discrete AC Output – 432Max Discrete DC Input – 864Type and Capacity I/OMax Discrete DC Output – 864Max Analog Input – 432Max RTD/Thermo Input - 162Max Analog Output - 21617561756 XTRockwell Automation 1794Vendor I/O Supported1794 XT1734S7-300SiemensET200MControlNetDeviceNetEthernet/IPRockwell Automation:ProfiBusModbusModbus/TCPField BusProfibusCanBusSiemensProfiNetModbusModbus/TCPRedundancyOptionalMediaOptionalProtocolsTCP/IP, UDP# of Ports OptionalEthernetRedundancyOptionalMediaOptional*MIL-STD 901D*MIL-STD 167-1MIL-SPEC*MIL-STD 461*MIL-STD 1399*MIL-STD 8100-60°C OperatingTemperature-20-70°C Operating with Extreme TemperatureI/O ModulesHumidity5-95% Noncondensing* Designed to specifications


Type ENG-DAU-2Data Acquisition UnitFeatures• Power supply• Optional processor• Fieldbus communications• (3) I/O chassis’s• Industry standard I/O modules• Internal terminal blocks for field wiring• External power connection with fusing and filtering• Optional signal conditioning• Optional local ethernet switch with downlink and local ports• Optional field bus and ethernet redundancy• Optional fiber optic field bus• Optional in chassis industrial PC• Optional panel mounted LCD display• Optional OpenSea control softwareTypical Writing DiagramDimensional Diagram4265 N. 30th Street, Milwaukee, WI 53216 | Phone 414.875.2900 | Fax 414.875.4319 | Email IMS-BD@drs.com15


<strong>DRS</strong> 15kV VCBVacuum Circuit Breaker (VCB)Military SpecificationsMIL-S-901, Grade AMIL-STD-167-1, 4-21 HzMIL-STD-461MIL-STD-1399-300APhysical CharacteristicsCircuit breaker:Width.........................................................27.6 inches (70.1 cm)Height.......................................................32.2 inches (81.8 cm)Depth.......................................................25.1 inches (63.8 cm)Weight...........................................................430 lbs. (195.0 kg)Environmental PerformanceOperating temperature......................................... -30 to +65° COperating humidity.................................. 95% Non-condensingThe <strong>DRS</strong> 15kV VCB is a 1600 A medium voltage VacuumCircuit Breaker (VCB). This circuit breaker is based on aCOTS breaker that is militarized by <strong>DRS</strong> providing a small,lightweight, and cost effective solution. Utilized on the latestU.S. Navy ships for power distribution, the military hardenedVCB is designed to withstand rugged maritime conditions forthe life of the ship.This is the Navy’s first and only Vacuum Interrupter-BasedCircuit Breaker qualified for military use. The VacuumInterrupter design significantly reduces breaker size andweight as arc chutes are not needed. Maintenance is reducedsince no contact adjustments are required, only a periodiccheck of the integral wear indicator is needed. The VCB isdrawout (removable) for ease of inspection and replacement.From power distribution and electrical control productsto ship control automation, <strong>DRS</strong> offers advanced productdevelopment, world-class manufacturing and globalengineering services and support. That is why our productsare found on all U. S. Navy ships since WWII.Highlights• Maintenance free vacuum interrupter• Trip free operation• Interlocks for proper and safe operation• Built-in contact erosion indicator• Operations counter• Mechanical position indicator• Closing springs charged indicator• Mechanical and electric close capability• Mechanical and electric open capabilityFunctional Ratings(Ratings are nominal unless stated)Power characteristicsMax. continuous current...............................................1600AMax. voltage and frequency....................... 15,000VAC, 60HzMax. short circuit interrupting current......40,000A symmetricalShort circuit duration..............................................3 secondsMax. short circuit making current.................103,000A peakMax. trip time...............................................................3 cyclesMax. close time...........................................................5 cyclesMechanical endurance.................................... 10,000 cyclesNumber of poles.....................................................................3Voltage characteristicsDielectric withstand............................ 36,000 V for 1 secondBasic Impulse Level (BIL).......................................... 95,000VCorona extinction voltage level.................................. 17,500VAttachmentsElectrical closing device............................................StandardShunt trip device.......................................................StandardCharging motor protection........................................StandardGrounding contacts...................................................StandardAuxiliary switches – quantity...............................................15Auxiliary switches – ratings.... 120VAC, 15A / 125VDC, 10ASecondary disconnect pins.................................................5016New Products


<strong>DRS</strong> LV - PEMSLow Voltage Power Electronic ModulesDrive PEMHighlights• High efficiency• Fault tolerance• Excellent power quality• High power density• Modular (drawer mounted)• Scalable systems (multiple units in parallel)• Liquid cooled• 4th generation IGBT’s• Low voltage distortion for direct connect drive applications• Communication interfaces include fiber optic, ethernet,and CAN• All applications are capable of bidirectional power flowMilitary SpecificationsMIL-S-901, Grade A (mitigated enclosure)MIL-STD-167-1MIL-STD-461MIL-STD-1399Physical CharacteristicsDrive only:Width.................................................... 16.5 inches (70.1 cm)Height................................................... 14.6 inches (81.8 cm)Depth....................................................... 32 inches (63.8 cm)Weight.......................................................300 lbs. (195.0 kg)Power Converter PEMThe <strong>DRS</strong> LV - PEMS is a complete series of Low VoltagePower Electronic Modules. This next generation of powerconversion equipment is based on <strong>DRS</strong>’ experience in 3level power converters for Drive, DC/AC Inverter and DC/DCconverter applications. This next generation of PEMS offersa significant increase in power density and decrease in costover the previous generation.Potential applications include VFD’s, soft starters, frequencyconverters, point of use power conversion (AC/DC, DC/AC,DC/DC, AC/AC), propulsion drives or power conversion basedpower systems.From power distribution and electrical control productsto ship control automation, <strong>DRS</strong> offers advanced productdevelopment, world-class manufacturing and globalengineering services and support.Power converter (with output filtering):Width.................................................... 16.5 inches (70.1 cm)Height...................................................29.6 inches (81.8 cm)Depth....................................................... 32 inches (63.8 cm)Weight.......................................................800 lbs. (195.0 kg)Environmental PerformanceOperating air temperature.................................... -40 to +70° COperating humidity...................................95% non-condensingOperating water temperature...................................1 to +43° CFunctional Ratings(Ratings are nominal unless stated)Power characteristicsMax. continuous current.........................750A/phase (drive),600A/phase (inverter),900A (converter)Max. output voltage and frequency................. 690 VAC 60hz(400hz option),1200VDCNumber of output poles..4 (drive), 3 (inverter), 2 (converter)Voltage characteristicsdielectric withstand....................... 5,000 VDC for 60 second4265 N. 30th Street, Milwaukee, WI 53216 | Phone 414.875.2900 | Fax 414.875.4319 | Email IMS-BD@drs.com17


ACB-2020Low Voltage Air Circuit BreakerPhysical CharacteristicsCircuit breaker:Width.................................................... 16.5 inches (41.9 cm)Height...................................................18.2 inches (46.2 cm)Depth....................................................16.8 inches (42.7 cm)Weight......................................................... 200 lbs. (90.7 kg)Cassette:Width....................................................18.3 inches (46.5 cm)Height...................................................20.8 inches (52.8 cm)Depth.....................................................17.7 inches (45.0 cm)Weight......................................................... 120 lbs. (54.4 kg)Navy Type ACB-2020 is an 800-2000A low voltage AirCircuit Breaker utilizing the latest technology electronic tripunit. This circuit breaker is based on a COTS breaker that ismilitarized by <strong>DRS</strong> providing a small, lightweight, and costeffective solution. Utilized on the latest U.S. Navy ships forpower distribution, the MIL-SPEC qualified air circuit breaker isdesigned to withstand rugged maritime conditions for the lifeof the ship.Whether for new shipbuilding or modernization programs<strong>DRS</strong>’s ACB-2020 is ideal for integrated control, conditionbased maintenance, power monitoring, and interfacing withship network communications. The built-in electronic trip unitcan be remotely accessed for diagnostics, breaker status,ampere, voltage and power monitoring.Controls and indicators are functionally grouped on thebreaker faceplate to optimize the human interface, visibility,and ease of use. For maximum safety, a modern, through-thedoordesign permits access to the breaker levering system,trip unit, controls and indicators with the door closed.Highlights• Electronic trip unit with long, short, and instantaneoustrip curve settings• 24 character LED display for status• System diagnostics:- Cause of trip- Trip log- Waveform capture- Breaker health monitor- Remote signal contacts- Programmable contacts- Electronic operations counterEnvironmental PerformanceOperating temperature......................................... -20 to +70° COperating humidity...................................95% non-condensingFunctional Ratings(Ratings are nominal unless stated)Power characteristicsMax. continuous current...............................................2000AMax. voltage and frequency.............................500VAC, 60HzMax. interrupting rating.......................85,000 A symmetricalRated short time current........................................... 85,000ARated short time current duration............................. 0.5 SecNumber of poles.....................................................................3AttachmentsElectrical closing mechanism...................................StandardShunt trip device.......................................................StandardRemote close function............................................... OptionalVertical bus stab adapters......................................... OptionalAuxiliary switches – quantity.................................................8Auxiliary switches – ratings....... 120VAC, 15A / 480VAC, 5AMechanical lockout device.......................................StandardMechanical position indicator..................................StandardSecondary disconnect..........................8 @ 15A and 4 @ 10ACell switch...........................................................120VAC, 15AProtective features(Can be set as a trip or alarm)• Time over current• Ground fault• Over voltage• Over frequency• Reverse power• Zonal interlocking• Under voltage• Under frequency• Voltage unbalance• Phase rotationMilitary SpecificationsMIL-C-17587MIL-S-901, Grade AMIL-STD-167-1, 4-50 Hz18New Products


<strong>DRS</strong>-4040Low Voltage Air Circuit BreakerMilitary SpecificationsDesigned to MIL-C-17587MIL-S-901, Grade AThe <strong>DRS</strong>-4040 is a 2400-4000A low voltage Air CircuitBreaker utilizing the latest technology electronic trip unit.This circuit breaker is based on a COTS breaker that ismilitarized by <strong>DRS</strong> providing a small, lightweight, and costeffective solution. Utilized on the latest U.S. Navy ships forpower distribution, the military hardened air circuit breaker isdesigned to withstand rugged maritime conditions for the lifeof the ship.Whether for new shipbuilding or modernization programs the<strong>DRS</strong>-4040 is ideal for integrated control, condition basedmaintenance, power monitoring, and interfacing with shipnetwork communications. The built-in electronic trip unit canbe remotely accessed for diagnostics, breaker status, ampere,voltage and power monitoring.Controls and indicators are functionally grouped on thebreaker faceplate to optimize the human interface, visibility,and ease of use. For maximum safety, a modern, through-thedoordesign permits access to the breaker levering system,trip unit, controls and indicators with the door closed.Highlights• Electronic trip unit with long, short, and instantaneoustrip curve settings• 24 character LED display for status• System diagnostics:- Cause of trip- Trip log- Waveform capture- Breaker health monitor- Remote signal contacts- Programmable contacts- Electronic operations counter• Remote communications (Modbus, Profibus, Incom,PowerNet, TripLink)• Metering: Amps, Volts, Hz, kW, kVA, kVAr, THD, IHD,Power Factor, Crest Factor• Pad-lockable levering device shutter• Optional remote close module• Optional remote communications modulePhysical CharacteristicsCircuit breaker:Width....................................................35.3 inches (89.7 cm)Height...................................................18.2 inches (46.2 cm)Depth....................................................16.8 inches (42.7 cm)Weight.......................................................365 lbs. (165.6 kg)Cassette:Width.................................................... 37.0 inches (94.0 cm)Height...................................................20.8 inches (52.8 cm)Depth.....................................................17.7 inches (45.0 cm)Weight......................................................... 120 lbs. (54.4 kg)Environmental PerformanceOperating temperature......................................... -20 to +70° COperating humidity...................................95% non-condensingFunctional Ratings(Ratings are nominal unless stated)Power characteristicsMax. continuous current...............................................4000AMax. voltage and frequency.............................500VAC, 60HzMax. interrupting rating.......................85,000 A symmetricalRated short time current........................................... 85,000ARated short time current duration............................. 0.5 SecNumber of poles.....................................................................6AttachmentsElectrical closing mechanism...................................StandardShunt trip device.......................................................StandardRemote close function............................................... OptionalVertical bus stab adapters......................................... OptionalAuxiliary switches – quantity.................................................8Auxiliary switches – ratings....... 120VAC, 15A / 480VAC, 5AMechanical lockout device.......................................StandardMechanical position indicator..................................StandardSecondary disconnect..........................8 @ 15A and 4 @ 10ACell switch...........................................................120VAC, 15AProtective Features(Can be set as a trip or alarm)• Time over current• Ground fault• Over voltage• Over frequency• Reverse power• Zonal interlocking• Under voltage• Under frequency• Voltage unbalance• Phase rotation4265 N. 30th Street, Milwaukee, WI 53216 | Phone 414.875.2900 | Fax 414.875.4319 | Email IMS-BD@drs.com19


Variable Speed/Frequency Drives<strong>DRS</strong> is a leader in providing Variable Frequency Drives tomilitary or marine grade specifications. Our rugged VariableSpeed Drives can be found wherever speed/frequency isa key operating parameter. We provide a wide range ofdrive offerings to our customers by leveraging our strongengineering capabilities, full understanding of applicable MIL-SPEC’s or Commercial requirements gained from a history ofsuccessfully deployed products.From power distribution and electrical control productsto ship control automation, <strong>DRS</strong> offers advanced productdevelopment, world-class manufacturing and globalengineering services and support. That is why our productsare found on all U. S. Navy ships since WWII.15HP Variable Frequency Drive (VFD)The 15HP VFD utilizes a Commercial-Off-The-Shelf (COTS)solution that provides low cost, induction motor control.This 15HP drive takes advantage of <strong>DRS</strong> designed filtercomponents to meet strict EMI requirements for conductedand radiated emissions. Using a unique COTS drive allows forfuture and back-fit applications where the existing motor isnot inverter grade. This VFD is best suited for pump and fanapplications where variable speed control and high efficiencypower electronics can save energy. Network capabilities allowflexibility of control from automated systems to local manualuser control.Highlights• Variable speed control of induction motors• 440VAC, 3 phase input• 460VAC, 3 phase output• Motor protection• Meets:- MIL-STD-461- MIL-STD-1399, 300- MIL-STD-901- MIL-STD-167• 15HP @ 50°C• Bulkhead mount design• Ethernet and profibus network capability• Digital and analog I/O for local and remote user stations• Fan cooled• Drip proof250HP Variable Frequency DriveThe 250HP VFD utilizes a Commercial-Off-The-Shelf (COTS)solution that provides low cost, induction motor control.This 250HP drive takes advantage of <strong>DRS</strong> designed filtercomponents to meet strict EMI requirements for conductedand radiated emissions. Using a unique COTS drive allows forfuture and back-fit applications where the existing motor isnot inverter grade. This VFD is best suited for pump and fanapplications where variable speed control and high efficiencypower electronics can save energy. Network capabilities allowflexibility of control from automated systems to local manualuser control.Highlights• Variable speed control of induction motors• 650VDC input• 460VAC, 3 phase output• Motor protection• Meets:- MIL-STD-461- MIL-STD-1399, 300- MIL-STD-901- MIL-STD-167• 250HP @ 50°C• Floor & bulkhead mount design• Ethernet and profibus network capability• Digital and analog I/O for local and remote user stations• Fan cooled• Drip proof20New Products


High Frequency DriveThe High Frequency Drive (HFD) utilizes <strong>DRS</strong> drive technology.The HFD utilizes an active, power factor corrected frontend combined with a buck topology that yields the ability tocontrol standard 460VAC motors as well as lower voltagemachines. A high switching frequency reduces the size offilter components creating a highly power dense package.Plug-in option cards provide options for resolver, hall-effector encoder position feedback as well as network cards andI/O expansion. The HFD is capable of driving induction andbrushless DC (BLDC) permanent magnet motors increasingits capability for applications such as pumps, blowers, valveactuators and chillers.Highlights• Variable frequency control of induction and brushless DC(BLDC) permanent magnet motors• 440VAC, 3 phase input• 110VAC – 460VAC, 3 phase output• Embedded web server for drive configuration andmonitoring / diagnostics• Motor protection• Meets:- MIL-STD-461- MIL-STD-1399, 300- MIL-STD-901- MIL-STD-167• 20HP @ 50°C, fan cooled• 5HP @ 50°C, convection cooled• Bulkhead, hard-mount design• Networks: Ethernet, Profibus, CAN/DeviceNet, USB• Digital and analog I/O for local and remote user stations• Splash proofSteering Gear Actuation System (SGAS)The Steering Gear Actuation System (SGAS) drive has beendesigned using innovative power electronics and packagingtechniques. Three drive sections along with an integraldynamic braking section are provided in the cabinet alongwith redundant control and monitoring of drive, motor andcabinet status and faults. The drive has been designed tocontrol permanent magnet AC motors and has provision toaccept resolver feedback but could be modified to interfacewith induction machines. It is well suited to provide highperformance in position, velocity or torque control types ofapplications.Highlights• Control of three (3) individual PM AC motors• 650 VDC input• Maximum of 460 VAC, 3 phase variable voltage /frequency output• 3 drive sections @ 50ºC• Integral dynamic brake for regenerative applications• Redundant drive control and system monitoring• Chilled water cooled with condensation managementsystem• Rugged compact design• Cabinet IP54 rated• Redundant ethernet connectivity• Meets:- MIL-STD-461- MIL-STD-1399, 300- MIL-STD-901- MIL-STD-167These are just some examples of our drive offerings. Todiscuss your particular drive applications please contact ourfactory directly.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 414.875.2900 | Fax 414.875.4319 | Email IMS-BD@drs.com21


Low Voltage Switchgear<strong>DRS</strong> is a leader in providing Low Voltage Switchboards andload centers to military or marine grade specifications.Utilized on the latest U.S. Navy ships for power distribution,the military hardened switchgear is designed to withstandrugged maritime conditions for the life of the ship.<strong>DRS</strong> has supplied switchgear with an unprecedented levelof automation for ship applications. This includes generatorcontrols, synchronization, load shedding, and protectivefeatures. The switchgear can also provide custom HMIscreens for power monitoring, control, diagnostics, conditionbased maintenance, and interfacing with ship networkcommunications.From power distribution and electrical control productsto ship control automation, <strong>DRS</strong> offers advanced productdevelopment, world-class manufacturing and globalengineering services and support. That is why our productsare found on all U. S. Navy ships since WWII.Highlights• Drip proof or spray tight enclosures• Wide range of standard distribution units• AC or DC switchgear• Arc fault detection• Optional insulated bus bars• Remote monitoring and control to SCADA• Modbus/Profibus communicationsMilitary SpecificationsABS NVRMIL-S-901, Grade AMIL-STD-167-1MIL-STD-461MIL-STD-1399 Section 300Commercial <strong>Marine</strong> SpecificationsABS SVRIEEE 45<strong>Integrated</strong> Generator Controls• Start and automatically parallel generators to the bus• Automatically parallel to and from shore power• Automatically recover from a dark ship condition• Automatically start or stop generators based on loaddemands via the power management system• Automatically perform load sharing among generators (KWand VAR) in a split or monolithic bus• Provide digital under voltage and over current protection• Two stage load shed capability22New Products


Medium Voltage SwitchgearMilitary SpecificationsMIL-S-901, Grade AMIL-STD-167-1MIL-STD-461MIL-STD-1399 Section 300<strong>DRS</strong> is a leader in providing Medium Voltage Switchgearto military requirements. <strong>DRS</strong> can provide switchgear upto 15kV, in a compact and rugged enclosure that is a 40%reduction in volume over typical commercial switchgear.Utilized on the latest U.S. Navy ships for power distribution,the military hardened switchgear is designed to withstandrugged maritime conditions for the life of the ship.The switchboards provide custom HMI screens forpower monitoring, control, diagnostics, conditionbased maintenance, and interfacing with ship networkcommunications. Built-in safety features are provided to keepthe operator out of harms way while operating the circuitbreakers.Protective Relaying Features(Can be set as a trip or alarm)• Current differential• Time over current• Zonal interlocking• Ground fault• Under voltage• Over voltage• Under frequency• Over frequency• Voltage unbalance• Reverse power• Phase rotation• Loss of field• Negative phase sequence• Volts per HertzSupplemental Devices• Compact foldable lifting cart• Manual ground and test device• VCB electrical test boxHighlights• Metal clad construction for operator safety• Meets 95kV BIL rating• Two-high breaker arrangement is standard• Vacuum circuit breakers provide low maintenance, long life• Fluidized bed epoxy coated bus bar• Silicone (non-PVC) insulating boots• Remote communications (Modbus, Profibus)• HMI for metering, control, and diagnostics• Circuit breaker condition-based monitoring4265 N. 30th Street, Milwaukee, WI 53216 | Phone 414.875.2900 | Fax 414.875.4319 | Email IMS-BD@drs.com23


Motor Control & OPERATOR INTERFACE Specification and DocumentSOur customer’s mantra is our mantra -Pride, Purpose, Performance.Pride - <strong>DRS</strong> has a rich history of providing robust equipment to the U.S. Navyand its international allies. In recent history, <strong>DRS</strong> has become the largest Hull,Mechanical, and Electrical provider for the CVN 78 Class Aircraft Carrier, the DDG1000 Destroyer, and the Lockheed Martin Freedom Class of Littoral Combat Ships.Purpose - <strong>DRS</strong>’ heritage of products reaches back to 1904, when it deliveredits first motor controller products. This heritage continues today into the U.S.Navy’s new platforms including key positions on the DDG 51 restart efforts (motorcontrollers, hybrid-electric drives, next generation power distribution and conversionprograms) support of the Ohio Submarine Replacement Program, the LockheedMartin Littoral Combat Ship, and the LHA 7 Amphibious Assault Ship design.Performance - <strong>DRS</strong> has demonstrated that it has the design capabilities andbench depth to meet the demanding needs of today’s Navy. <strong>DRS</strong>’ extensive fieldservice support and shipyard interaction has provided a unique perspective onproduct design. Our newest motor controller designs include a next generationoverload and a revolutionary lightweight enclosure. The designers of this enclosuredismissed conventional thought on motor controller design while incorporatingcustomer needs for installation. The results are an astonishing new cabinetwith open corners and an integral back panel that significantly reduces in houseproduction costs and shipyard/shipboard installation time and materials.Pride, Purpose, Performance at <strong>DRS</strong> we live it everyday.


Controlling Standards/SpecificationsMIL-DTL-2212 is the controlling specification for motor controlequipment used on Naval vessels. It invokes 24 other MilitarySpecifications and Standards. Some of these are:MIL-E-917MIL-S-901MIL-STD-167-1Electric Power Equipment, Basic RequirementsShock Tests, High Impact; Shipboard Machinery,Equipment and <strong>Systems</strong>, Requirements forMechanical Vibrations of Shipboard Equipment(I – Environmental and II – Internally Excited)DOD-STD-1399 Interface Standard for Shipboard <strong>Systems</strong>Section 300– Electric Power, Alternating CurrentProtective EnclosuresThe controlling specifications for Navy motor control equipmentrequire dripproof enclosures as a general minimum. Other types ofenclosures may be required depending on the application. Theseinclude splashproof, submersible and explosion proof.The Navy definitions of these enclosure types are shown below.DripproofAn enclosure constructed so that enclosed equipment operatessatisfactorily in the presences of falling drops of liquid or solidparticles. This protection must be provided for up to 45° of inclinationfrom the vertical.Explosion ProofEnclosed equipment operates safely in the presence of anyconcentration of a specified gas or vapor. The enclosure must beconstructed to withstand the explosion of the gas or vapor withinit and show no distortion or significant damage as a result. It shallcontain the explosion and other sparks and flashes so that the gasor vapor surrounding the enclosure is not ignited. Class I, Group D,MIL-E-2036.SplashproofAn enclosure constructed so that equipment within it operatessatisfactorily in the presence of a coarse spray of liquid or solidparticles. The spray is to be directed at all exposed surfaces and thesurface to which the controller is mounted. The test duration is fiveminutes at a water flow rate of 15 gallons per minute.SubmersibleAn enclosure constructed so that equipment within operatessatisfactorily when submerged in water up to a specified depth. Waterleakage is not permitted. The most common test is 15 feet for 24hours.WatertightAn enclosure constructed to prevent entry of water from a solidstream striking it on any surface and at any angle. The test required asolid stream of water from a one inch nozzle, sprayed from a 10 footdistance, with a flow rate of 65 gallons per minute. The test duration is60 minutes. An alternative test method is submersion in water so theenclosure is covered, the test duration is five minutes. Entry of waterduring the test shall be cause for rejection.The Navy definition of dripproof and splashproof permit the entry ofsome liquid or solid particulate into the enclosure cavity. The enteringcontaminant, however, may not affect the operation of the equipmentwithin the enclosure.A comparison of similar Navy and NEMA enclosure grades follows:NavyClassificationNEMATypeNavyRequirementDripproof 12 Protection to 45 °inclinationWatertight 4 60 minute hosetest at 65 gallonsper minuteSubmersible 6 Minimum -15 ftof submersion for24 hoursNEMARequirementNo inclinationrequirement5 minute hosetest at 65 gallonsper minute6 ft of submersionfor 30 minutesCorrosion protection is an obvious necessity for motor controlequipment in a seagoing environment. <strong>DRS</strong>-PCT provides corrosionprotection for its Navy motor control equipment through the use ofcorrosion-resistant materials and high quality finishes. All enclosuresare designed and tested to pass a standard 200 hour salt spray test.MC DOCUMENTATIONUpdated list prices and PDF version of this catalog are available at <strong>DRS</strong>.com. 25


MC DOCUMENTATIONFeatures<strong>DRS</strong> AC controllers, components and pilot devices are designed andbuilt to meet the requirements of MIL-DTL-2212.Additional features include:• Temperature Rating – 50°C as required by MIL-DTL-2212.• Compensation – Overload relays are insensitive to variations inAmbient temperature.• Diagram – Heat resistant, durable copy of controller diagram isattached to inside of controller.• Voltage – 440V and 115V; other voltages available upon request.• High Shock – MIL-S-901, Grade A, Class 1, Type A requirements.• Vibration – MIL-STD-167-1 to 33 Hz as standard• Operational – Equipment will operate at inclinations up to 45°from the normal mounting orientation.Documentation and Other InformationEquipment documentation is an important consideration for motorcontrol equipment to be used at sea. <strong>DRS</strong>-PCT provides extensivedocumentation configured to support the end-user.For example, standard plans provide the physical and electricalinformation necessary to install and maintain a controller. CertificationData Sheets provide important reference information for identifyingthe application, manufacturer, applicable drawing numbers, andquantities involved. Tech manuals support repair and maintenanceactivities by providing disassembly and adjustment information,repair parts data and electrical diagrams useful for troubleshooting.The documentation that is available from <strong>DRS</strong>-PCT to support its NavyMotor control equipment is described in the following sections:Drawings (Standard Plan) p. 26Certification Data (CD) Sheets p. 26Packaging p. 27Provisioning Technical Documentation (PTD) p. 27Quality Assurance p. 27Technical Manuals p. 27TestingThe prices for motor controllers and accessories include thestandard inspections and routine tests required by MIL-DTL-2212.They do not include First Article Testing or factory providedinstallation supervision.AC Controllers, components and pilot devices are designed andbuilt to meet the requirements of MIL-DTL-2212. IAW with MIL-DTL-2212 a representative sample of controllers, components andpilot devices are periodically subjected to Conformance Testing. Thetested and related types of controller, component and pilot devicesare placed on QPL-2212 for general use in Naval applications.DC Controllers and components were last qualified to meet the QPLrequirements of MIL-C-2212F. Representative samples of thesedevices are subjected to periodic non-witnessed ConformanceTesting IAW MIL-C-2212F which precludes inclusion on the currentQPL-2212 listing.<strong>DRS</strong>-PCT does not imply a full suite of QPL testing is completedfor every variation of controller, component and pilot devicemanufactured. If additional individual qualification testing isrequired, <strong>DRS</strong>-PCT will provide a separate quote for those specificallyrequested tests. If qualification testing is required, <strong>DRS</strong>-PCT mustbe notified prior to the placement of a Purchase Order.In addition, pricing for any special inspections, or installationsupport can be provided upon request.DrawingsDrawings and certification data are normally provided for approvalpurposes or when required by a purchase specification.The information included in these documents follow.Standard PlanThe Standard Navy Plan provided for <strong>DRS</strong>-PCT Navy motor controlequipment conforms to the requirements of MIL-DTL-2212. Includedare the following (minimum):1. Manufacturer’s name and Cat. I.D. of apparatus.2. Applicable specifications.3. Weight of controller.4. Outline drawing and dimensions of enclosure, locationof mounting holes, center of gravity.5. Description of operation, adjustments.6. List of repair parts.7. Connection and schematic diagrams.8. List of material, overload heater table.9. Descriptive data of controller, i.e. enclosure, rating,operation, type, etc.10. Descriptive and electrical design data of coils, resistors,transformers, etc.11. Approval status.Certification Data (CD Sheets)Certification Data Sheets provided conform to the requirements ofDOD-STD-100C. The standard form is an 8-1/2” x 11”. Informationprovided is as follows:1. Navy Contract No. of Shipbuilder’s Order No.2. Manufacturer’s Number3. Subcontractor’s Order Number4. Applications:a. Auxiliaryb. No. of controls per vesselc. Motor hp ratingd. Full load amps.e. Voltsf. Heater Coil Cat. No.5. Number of controllers involved6. Number of controllers per vessel7. Number of sets of repair parts per vessel contract8. Number of vessels involved9. Vessel of hull numbers10. Drawing numbers of associated equipmentCopies of Standard Plans and CD SheetsThe plan price includes one full size reproducible (vellum) plusadditional paper copies when ordered with the control. Otherrequirements are priced by request and in accordance with thefollowing table.26Motor Control and Operator Interface Specification and Documents


Paper, Vellum or Electronic Reproduction of controller andaccessory plans, ordered separately.Paper or Electronic Reproductions of Certification Data (CD)sheets.Reduced size copies of standard plans –First 50 or fewer copies.Each additional 50 copies.35 mm Aperture cards, in accordance with MIL-M-9868/1.PackagingPackaging and packing of Controllers andComponentsA. Commercial (Level C)………………………..No ChargeB. Military – Per any military standard of specification or“Packaging Requirement Code”1. Enclosed controllers and accessories:5% or minimum of $188. Per order2. Open controllers, components or accessories:12% or minimum of $188. per orderPackaging and Packing of Repair PartsA. Commercial (bulk) – Package marking only –No Preservation........................................ No ChargeB. Military – Per any military standard or specification or“Packaging Requirement Code”......... 12%Minimum $188. per orderBar Code Marking$295 per order plus $20 per item and each additional destination.FCA Destination .......................................... 12%Provisioning Technical DocumentationProvisioning Technical Documentation (PTDs) can recommend onboardand stock repair part levels. These recommendations arenormally made on NAVSHIPS forms 4786 and 4786A in accordancewith MIL-P-15137. Alternatively, Short Form Provisioning data(SFPPL) can be provided on NAVSEA forms 4423/3 and 4423/3A inaccordance with MIL-STD-1552 and MIL STD 1561.Price: Forms 4786 & 4786A – included if requested at time oforder, if not $250 fee will apply.Forms 4432/3 & 4423/3A - $550.Repair PartsRepair Parts are normally an optional and unpriced item on an initialcontract or order. When such an option is exercised, the required partsare added to the contract or order based on the Government’s selectionof items and quantities from the standard Provisioning TechnicalDocumentation (PTD) forms. Consult the factory for current pricing.Non-magnetic ConstructionSpecial situations require the use of motor control equipment thatpresents a low “magnetic profile.” One example is a mine sweeper.Reducing the magnetic profile requires the use of non-ferrous (i.e.non-magnetic) materials where feasible. Additional steps may benecessary to counteract the impact of ferrous materials and magneticstructures that cannot be eliminated.Navy qualified non-magnetic control will be provided when required.Contact the factory for price information.Quality AssuranceThe <strong>DRS</strong>-PCT Milwaukee facility is ISO 9000 certified and qualityprograms exceed the requirements of MIL-I-45208A - “InspectionSystem Requirements”. <strong>DRS</strong>-PCT motor controllers, components,and accessories are designed and manufactured in conformancewith MIL-C-2212 and MIL-DTL-2212 and applicable subtier MilitarySpecifications, as indicated in this catalog. Most <strong>DRS</strong>-PCT productsare listed on the Qualified products list (QPL) of the specificationindicated in this catalog.The Quality Assurance documentation normally provided includesGovernment Source Inspections, Certificate of Compliance, Certificateof Identicality, and a copy of the final test report. Applicable pricingcan be provided upon request.Quiet Control (MIL-STD-740)MIL-STD-740 defines acceptable levels for airborne and structureborne noise when “Quiet” operation is required. Airborne noise isundesired sound carried through the air. Structure borne noise isan undesired vibration carried through a solid medium such as theship’s hull.Navy motor control equipment and components can be provided tomeet the requirements of MIL-STD-740B. Special manufacturingmethods, parts selection and verification test are necessary toguarantee compliance. Prices for quiet components, controls andnoise testing are gladly provided upon request.Technical ManualsStandard Tech Manual Inserts conforming to MIL-DTL-2212 will besupplied when ordered. These provide ample information for theinstallation, maintenance and repair of our Navy qualified motorcontrol equipment. Included are the following:1. Title Page2. Table of Contents3. Copies of applicable CD Sheets4. Reduced size copies of applicable Navy Plans5. Applicable component Technical PublicationsPreliminary copies will be supplied for approval. The final copies willconsist of black and white reproducibles.Standard Tech Manual InsertsFirst 5 copies or part thereof when orderedwith controlEach additional 50 copiesPriceNo ChargeProvided byrequestComplete Tech Manuals conforming to MIL-M-15071 or similarspecifications can be provided if required. Please contact the factory.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com27


MOTOR CONTROL AND OPERATOR INTERFACEExceptional engineering, proven solutions<strong>DRS</strong> marries exceptional engineering capability with a long history ofsuccessfully fielded products to deliver proven solutions. Our motor controllers,variable frequency drives, electronic motor operators, starters and UPS unitsare the natural choice for critical applications specified for the U.S. Navy andother Maritime applications. MIL-STD Naval specifications are only the start.<strong>DRS</strong> products are battle-tested and hardened, having proven themselves timeand again, providing continuous, flawless operations in theharshest environments.<strong>DRS</strong> commands a 60-year service record other providers can only envy:building and supporting motor controllers, starters and accessory productssince World War II.<strong>DRS</strong> products are also ever evolving as our company looks to future Navyneeds, with innovative products including our Navy Electronic Motor Operators(NEMO).<strong>DRS</strong> delivers. As we develop innovations and improvements, weincorporate the very best ideas across product lines and throughsuccessive product iterations.


Type 6922AC/DC Manual Across-the-Line StarterStarter in watertight enclosureWhen ordering specify<strong>Catalog</strong> number• Horsepower• Voltage• Full load motor current• Type of motor with which starter is to be used• ApplicationSpecifications• MIL-SPEC.................MIL-DTL-2212• Enclosure................Dripproof or watertight• Operation................Manual• Type.........................Across-the-line• Function..................Motor starting• Duty.........................Continuous• Protection................Low voltage release effect -Overload protection - thermal type relayCompensation - Change in rating does not exceed 5% foreach 10°C change in ambient between 20°C and 70°CAdjustability - Adjustable from 90 to 110% of relay ratingType of reset - Hand from STOP button• Performance.......... Manual• Ambient temp........ 50°C• Insulation............... Class B• Emergency Run...... By holding START button depressedMax. hpStarter440V 3-Phase Dripproof WatertightCat. No. Lbs. Net Cat. No. Lbs. Net7 1/2 6922H36B 9.5 6922H37D 16.5Starter price does not include heater coils. Select Heater Coils from table on following page.MOTOR CONTROLTypical Wiring DiagramApproximate Dimensions in Inches and Shipping WeightsUpdated list prices and PDF version of this catalog are available at <strong>DRS</strong>.com. 29


AC Manual Across-the-Line StarterOverload Heater Coil SelectionGeneralThe 9104 Heater Coils listed at right are foruse on Type 6922 Manual Starters.Motor Amperes 1<strong>Catalog</strong> Motor Amperes 1Min. Max.NumberMin. Max.<strong>Catalog</strong>NumberMOTOR CONTROLHeater SelectionSelect Heater Coils based on motornameplate full load current.Heater coils are rated to protect 40°Cmotors. Open and dripproof motors havea service factor of 1.15 where the motorand the controller are at the same Ambienttemperature.For other conditions:A. For 50°C, 55°C, 75°C rise motors andenclosed motors having a servicefactor of 1.0, select a heater coiltwo sizes smaller.B. Ambient temperature of controllerlower than the motor by 26°C, useone size smaller heater coil.C. Ambient temperature of controllerhigher than the motor by 26°C, use onsize larger coil.Ultimate tripping current of heater isapproximately 1.20 times the minimumcurrent rating listed in the tables.NOTE: There are some coils which requireminimum order quantity.0.3200.3440.3710.3980.4250.4620.5010.5410.5840.6300.6720.7310.7900.8600.9181.011.081.161.271.361.471.581.691.831.972.172.322.542.750.3430.3700.3970.4240.4610.5000.5400.5830.6290.6710.7300.7890.8590.9171.001.071.151.261.351.461.571.681.821.962.162.312.532.743.009104H38129104H38139104H38149104H38159104H38169104H38179104H38189104H38199104H38209104H38219104H38229104H38239104H37549104H37559104H37569104H37579104H37589104H37599104H37609104H37619104H37629104H37639104H37649104H37659104H37669104H37679104H37689104H37699104H37703.013.243.563.844.174.514.955.305.806.266.807.308.008.759.6010.511.412.313.314.415.416.418.019.320.822.224.126.43.233.553.834.164.504.945.295.796.256.797.297.998.749.5910.411.312.213.214.315.316.317.919.220.722.124.026.328.89104H37719104H37729104H37739104H37749104H37759104H37769104H37779104H37789104H37799104H37809104H37819104H37829104H37839104H37849104H37859104H37869104H37879104H37889104H37899104H37909104H3791 29104H3792 29104H3793 29104H3794 29104H3795 29104H3796 29104H3797 29104H3798 21 Based on starter in a maximum 50°C ambient.2 These coils are quantity sensitive and have minimum order size of five (5) pieces.30Motor Control and Operator Interface


Type 6956AC Magnetic Contactors - EnclosedContactor Only – No Overload RelaySpecifications• MIL-SPEC . . . . . . . .MIL-DTL-2212• Enclosure . . . . . . .. Dripproof type• Poles . . . . . . . . . . .. Three poles• Operation . . . . . . .. Magnetic• Duty . . . . . . . . . . ... Continuous• Protection . . . . . . .. Low voltage release or lowvoltage protection (dependingupon type of master)• Performance . . . . Non-automatic or automatic(depending on type of master)• Ambient temp. . . .. 50°C .• Insulation. . . . . . . .Class B, except coils, Class A6956EDWhen ordering specify• Type number• Ampere rating• Voltage• Frequency• Type of enclosure• LVR or LVP (type of pilot device)• Application• Type and number of interlocks requiredAC Magnetic ContactorsFor open panels or watertightenclosures, refer to factorySize0123455 SPMax. Amps Enclosed18274590135270420Heater Loads (kW)Size0123455 SP110V1.92.94.99.914.829.746.2440VSingle-Phase Three-Phase7.91119395811818413203468100205320Sample Wiring DiagramApproximate 1 Dimensions and WeightsDimension in Inches Wt.SizeWide A Wide B Wide C Lbs.10/123458.259.3811.3811.3818.1311.2513.1315.7515.7523.136.507.888.758.7511.50Design variables will affect size and/or weight.182536371004265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com31


AC Magnetic StartersGeneral DataMaximum Horsepower Ratings – 60 HertzNavy StarterMaximum HorsepowerSize 115V, 1-Phase 440V, 3-PhaseTypes 6962 and 6963 Single Speed Across-the-Line0123455SP6Types 6967 and 6968 Two Speed Across-the-Line440V, 3-PhaseConstant or Variable Torque Constant Horsepower123423455 SP6--237-1/2--------102550100110V7-1/2152550----6962EDWhen ordering specify• <strong>Catalog</strong> or type number• Specifications applying• Voltage• Horsepower rating• Frequency• Type of enclosure• Full load motor current• Local or remote master switch• Scheme of operation (LVP or LVR)• Non-automatic or automatic• Application• Type of motor with which starter will be used• Any special contract requirements involving operation,construction, plans, packing, etc.Type 6966 Reduced Voltage Autotransformer51025501002003754007-1/2204075440V2550100200375400Specifications• MIL-SPEC................ MIL-DTL-2212• Enclosure............... Dripproof, watertight (other typesavailable, contact factory)• Operation............... Magnetic• Type........................ Electromagnetic• FunctionType 6962.............. Motor startingType 6963.............. Motor starting and reversingType 6966.............. Reduced voltage motor startingType 6967.............. Motor starting and speed selectionType 6968.............. Motor starting, reversing andspeed selectionType 6969.............. Special• Duty........................ Continuous• Protection............... Low voltage protection and lowvoltage release types• OverloadProtection............... Eutectic thermal type relay (N750)See Page 53Compensation....... Less than 3% change for each 10°variation in ambient between 20°and 70°CAdjustability........... -10%, +10% of heater ratingReset...................... Hand (local) or electrical (remote)• Performance.......... Non-automatic or automatic(depending on type of masterswitch used)• Ambient temp........ 50°C• Insulation............... Class B, except contactor coils, Class A• Emergency Run Optional, by separate emergencyRUN button• Rating..................... AC only 60 HzTable of Contactor Type NumbersNavyStarterSize0123455 SP6Number of Contactorsper StarterNonreversingReversing11111111Main Contactor--2222222Typenumber ofContactorN1291N850N894N846N862N878N1178N630EnclosedAmpereRating18274590135270420540Type numberof ControlRelay (WhenFurnishedfor SpecialPurposes)N1154N1154N1154N1154N1154N1154N1154N115432Motor Control and Operator Interface


Type 6962H Non-ReversingStandard (Non-engineered) AC Motor StartersAcross-the-Line, Single SpeedWhen ordering specify• <strong>Catalog</strong> number• Horsepower rating• Full load motor currentSpecifications• MIL-SPEC. . . . . . . . . MIL-DTL-2212• Enclosure . . . . . . . .Dripproof with wraparound cover• Voltage. . . . . . . . . ..440V AC, 60 Hz, 3-phase only• Operation. . . . . . . ..MagneticRemote Control – With Provision for Remote START/STOP Pushbutton (LVP) or ON/OFF Selector Switch (LVR)Remote START/STOP Pushbutton (LVP)Remote ON/OFF Selector Switch (LVR)<strong>Catalog</strong> number<strong>Catalog</strong> numberSizeWithoutWith Provisions forWithoutWith Provisions forAdditionalRemoteRemoteAdditionalRemoteRemoteFeatures Protective Device Emergency Run Features Protective Device Emergency RunWithout Indicating Light (1 Pilot Circuit Fuse)12346962H154A26962H161A26962H170A26962H178A26962H154A66962H161A46962H170A46962H178A4With Provision for Indicating Light (3 Pilot Circuit Fuses)12346962H155A26962H163A26962H172A26962H180A2--------6962H154A36962H161A36962H170A36962H178A36962H155A36962H163A36962H172A36962H180A36962H154A46962H161A76962H171A26962H179A26962H155A46962H163A46962H173A26962H181A2----------------6962H154A56962H161A86962H171A36962H179A36962H155A56962H163A56962H173A36962H181A3Dim. TableReferenceBEGHBEGHLocal Control – With START/STOP Pushbutton (LVP) or ON/OFF Selector Switch (LVR) – 440A – 60 HzSTART/STOP Pushbutton in Cover (LVP)With Provisions forON/OFF SelectorSwitch in Cover (LVR)WithoutWith Local EmergencyRunwith Local EmergencySize Additional FeaturesRun1234<strong>Catalog</strong>numberWithout Indicating Light6962H156A26962H165A26962H174A26962H182A2Dim.Ref.ADFH<strong>Catalog</strong>number6962H157A26962H166A26962H175A26962H183A2Dim.Ref.ADFHRemote Pushbuttons(1 Pilot Fuse)<strong>Catalog</strong>number6962H159A26962H168A26962H177A26962H185A2Dim.Ref.BEGHRemote SafetySwitch (1 Pilot Fuse)<strong>Catalog</strong>number6962H159A36962H168A36962H177A36962H185A3Prices of starters do not include overload heater coils. Two required per controller. Heater Coil Selection, Page 60.Dim.Ref.BEGH<strong>Catalog</strong>number6962H158A26962H167A26962H176A26962H184A2Dim.Ref.BEGHSTART/STOPPushbutton andMAN/AUTO SelectorSwitch in Cover (LVP)with Provisions forRemote 2-Wire AutomaticDevice<strong>Catalog</strong>number6962H160A26962H169A2----Dim.Ref.CJ----Approximate Dimensions and WeightsReferenceLetterWideADimensions in InchesHighBDeepCWeight Lbs.ABCDE8.388.2411.749.389.3811.3015.5615.3012.8017.306.686.686.448.068.062025353035FGHJ11.3811.3811.3813.7415.3019.8019.8016.808.948.948.948.06404547404265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com33


Type 6967H Non-ReversingStandard (Non-engineered) AC Motor StartersWhen ordering specify• <strong>Catalog</strong> number• Horsepower rating• Full load motor currentSpecifications• MIL-SPEC................ MIL-DTL-2212• Enclosure............... Dripproof with wraparound cover• Voltage.................... 440V AC, 60 Hz, 3-phase only• Operation............... Magnetic. Two speed, Two-Winding LVPLocal Control — FAST/SLOW/STOP<strong>Catalog</strong> numberWith Provisions forMaximum Local FAST/SizeHorsepower SLOW/STOPOnly1210256967H21A26967H28A2RemoteFAST/SLOW/STOP--6967H26A2Remote FAST/SLOW/STOP andMOTOR RUN Lights 1and RemoteEM-START/EM-STOP--6967H27A2Remote Control Only<strong>Catalog</strong> numberWith Provisions forSizeWideADimensions in InchesHighBDeepCWeight Lbs.Size12MaximumHorsepower1025RemoteFAST/SLOW/STOP6967H21A26967H28A2Remote FAST/SLOW/STOP andMOTOR RUN Lights 1and RemoteEM-START/EM-STOP--6967H29A21211.813.815.316.86.58.13247Prices of Starters do not include overload heater coils. Four required percontroller. Heater Coil Selection, Page 60.1 Motor run light for each speed.Approximate Dimensions and Weights34Motor Control and Operator Interface


Type 6962 Non-Reversing and Type 6963 ReversingEngineered AC Magnetic StartersAcross-the-Line, Single SpeedWhen ordering specify• Base type number. Example 6962-3• Voltage and frequency• Type of enclosure• Full load motor current• Low voltage protection or low voltage release• Features required• Desired circuit operation• Description of application• Any special instructionsSpecifications• MIL-SPEC................ MIL-DTL-2212• Enclosure............... Dripproof or watertight• Operation............... Magnetic• Rating..................... 440V AC, 60 Hz, 3-Phaseother voltages availableApproximate Dimensions and Shipping Weights - DripproofApproximate Dimensions and Shipping Weights - WatertightDripproof Enclosure 1Watertight Enclosure 1ControllerSizeWideADimensions in InchesHighBDeepCShippingWeight Lbs.ControllerSizeWideADimensions in InchesHighBDeepCShippingWeight Lbs.Type 6962 Non-reversingType 6962 Non-reversing01212.012.012.018.018.018.09.59.59.53535350129.59.513.519.019.019.07793435523455 SP612.014.022.1322.1335.518.018.028.1328.1360.09.59.511.511.524.045511201207903455 SP6Contact FactoryType 6963 ReversingType 6963 Reversing1212.014.018.020.09.59.535471213.2815.3821.1321.1399506034Contact Factory34Contact Factory1 Dimensions and weights shown are for the base controller only. The addition of optional features will affect the size and weight.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com35


Type 6967 Non-Reversing and Type 6968 ReversingEngineered AC Magnetic StartersTwo Speed, Across-the-LineWhen ordering specify• Type number• Applicable specifications• Two-winding or single-winding reconnected• Horsepower rating at high and low speeds• Full load motor current at high and low speeds• Voltage and frequency• Low voltage release or low voltage protection• Non-automatic or automatic• Local or remote master• Type of enclosure• ApplicationSpecifications• MIL-SPEC................ MIL-DTL-2212• Enclosure............... Dripproof or watertight• Operation............... Magnetic• Rating..................... 440V AC, 60 Hz, 3-Phaseother voltages availableMaximum Horsepower RatingsMaximum Horsepower 3-Phase, 60 HzSize Constant or Variable Torque Constant Horsepower440V440V12341025501007-1/2204075DiagramApproximate Dimensions and Weights --Watertight enclosure dimensions on application. Designvariables prevent accurate dimensions.SizeWideANon-reversing - Dripproof123414.1314.1316.1316.13Reversing - Dripproof123416.1316.1322.1322.13Dimensions in InchesHighB18.1320.1322.1322.1320.1324.1328.1332.13DeepC9.389.389.389.389.389.389.389.38Weight Lbs.45557385607913214136Motor Control and Operator Interface


Type 6966Engineered AC Magnetic StartersAutotransformer, Reduced Voltage TypeWhen ordering specify• Type number• Application specifications• Horsepower• Voltage and frequency• Full load motor current• Type of enclosure• Local or remote control• Low voltage protection or low voltage release• Non-automatic or automatic• ApplicationTypical Wiring DiagramSpecifications• MIL-SPEC................ MIL-DTL-2212• Enclosure............... Dripproof• Operation............... Magnetic• Rating..................... 440V AC, 60 Hz, 3-PhaseOther voltages availableApproximate Dimensions in Inches and Weights –Type 6966-1 1SizeDripproof Enclosure1123456WideA2020202632.5034.25Dimensions in InchesHighB424242608490DeepC1414142428.2530.25Design variables prevent accurate dimensions.Weight Lbs.190200300700127517004265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com37


Type 6999Engineered AC Magnetic Starters and ControlsOther ConfigurationsWhen ordering specify• Application specifications• Function description• Circuit configuration• Horsepower rating• Full load amperes• Voltage and frequency• Operation – LVP or LVR• Local or remote master• Enclosure type• Application descriptionPossible Configurations• Reversing autotransformer• Wye-Delta reduced voltage• Part-winding• Wound rotor• Special control needsExample Diagrams38Motor Control and Operator Interface


Type 6976Navy Underdeck Control CentersWhen ordering specify• Type number• Applicable specifications• Control center layout and individualcell application• Type number of individuals cells -specify voltage, frequency, horsepowerand full load motor current for each cell.Specifications• MIL-SPEC................ MIL-C-23742• Enclosure Splash proof(meets “Water Spray Protected” requirement)• Operation............... Magnetic• Function Motor starting, speed selection and powerdistribution. Variable voltage control.• Duty........................ Continuous• Protection............... Low voltage release or low voltage protectionOverload protection - thermal type, adjustableoverload relay• Performance.......... Non-automatic or automatic• Ambient temp........ 50°C• InsulationClass B - except magnet coils which haveClass A insulation• Emergency Run...... Included• Ratings................... 440V, 3-Phase, 60 HzType 6962Across-the-Line – 20 Inch WideSize01234Type 6967MaximumHorsepower5102550752 Speed – 20 Inch WideSize12MaximumHorsepower1025Circuit BreakerAmpere Rating100100100100100Circuit Breaker Distribution Section22-1/4 Inch WideCircuit Breaker Type1 to 4 AQB-A-1011 to 2 AQB-LF-250Circuit BreakerAmpere Rating100100Variable Voltage Static ControlSpace1-13 Inch1-13 InchSpace1-13 Inch1-13 Inch1-13 Inch1-13 Inch1-13 InchSpace1-26 Inch1-26 Inch20 Inch WideHorsepower Rating Speed Range Space10-20503:15:11-13 Inch1-13 InchOptional Features Available• Pushbuttons, selector switches and indicating lights.• Control relays and timers.• Space only for future or special control.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com39


Type 6957AC Navy ContactorsN850-N851 – Size 1 and N1291 – Size 06957ED25-1CSpecifications• MIL-SPEC................ MIL-DTL-2212• Operation............... Magnetic• Duty........................ Continuous• Ambient temp........ 50°C• Insulation............... Class B, except coils, Class AElectrical Data (Enclosed)Number of PolesAmpere Rating – EnclosedHorsepower Rating – 440V, 3-Phase, 60 HzMaximum Break – Amperes at 484V, 40% PFNo. of Interlocks – Hi-Shock NONCInterlock ContactCoil Data – 60 Hertz (All Devices)InrushSealedContactor WeightAmperesWattsVAAmperesWattsVAAmperes440V0.461702000.045.417.8N850 N851 N12914271016222527/13.51016221Make Break Continuous440V AC 6 1 15110V AC 15 1 15110V1.841702000.165.417.8N850 N851 N1291Pounds 3.1 3.1 3.031851081-Diagram SymbolsApproximate Dimensions in Inches40Motor Control and Operator Interface


Type 6957AC Navy ContactorsN894-N895 – Size 26957ED29-2ASpecifications• MIL-SPEC................ MIL-DTL-2212• Operation............... Magnetic• Duty........................ Continuous• Ambient temp........ 50°C• Insulation............... Class B, except coils, Class AElectrical Data (Enclosed)Number of PolesAmpere Rating – EnclosedHorsepower Rating – 440V, 3-Phase, 60 HzMaximum Break – Amperes at 484V, 40% PFNo. of Interlocks – Hi-Shock NONCInterlock ContactCoil Data – 60 Hertz (All Devices)InrushSealedContactor WeightAmperesWattsVAAmperesWattsVAAmperes440V0.562202450.035.613.1N894N8944452527022Make Break Continuous440V AC 6 1 15110V AC 15 1 15110V2.242202450.125.613.1N895Pounds 5.25 5.40N895545/22.52527012Diagram SymbolsApproximate Dimensions in Inches4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com41


Type 6957AC Navy ContactorsN846/N847 – Size 36957ED31-2CSpecifications• MIL-SPEC................ MIL-DTL-2212• Operation............... Magnetic• Duty........................ Continuous• Ambient temp........ 50°C• Insulation............... Class B, except coils, Class AElectrical Data (Enclosed)Number of PolesAmpere Rating – EnclosedHorsepower Rating – 440V, 3-Phase, 60 HzMaximum Break – Amperes at 484V, 40%PFNo. of Interlocks – Hi-Shock NONCInterlock ContactCoil Data – 60 Hertz (All Devices)InrushSealedContactor WeightAmperesWattsVAAmperesWattsVAAmperes440V1.33095700.0448.819.5N846N8464905054044Make Break Continuous440V AC 6 1 15110V AC 15 1 15N847590/455054033110V5.203095700.188.819.5N847Pounds 9.6 10.0Diagram SymbolsApproximate Dimensions in Inches42Motor Control and Operator Interface


Type 6957AC Navy ContactorsN862/N863 – Size 46957ED33-2CASpecifications• MIL-SPEC................ MIL-DTL-2212• Operation............... Magnetic• Duty........................ Continuous• Ambient temp........ 50°C• Insulation............... Class B, except coils, Class AElectrical Data (Enclosed)Number of PolesAmpere Rating – EnclosedHorsepower Rating – 440V, 3-Phase, 60 HzMaximum Break – Amperes at 484V, 40% PFNo. of Interlocks – Hi-Shock NONCInterlock ContactCoil Data – 60 Hertz (All Devices)InrushSealedContactor WeightAmperesWattsVAAmperesWattsVAAmperes440V1.33095700.0448.819.5N862N862413510081044Make Break Continuous440V AC 6 1 15110V AC 15 1 15N8635135/67.510081033110V5.203095700.188.819.5N863Pounds 12.5 12.9Diagram SymbolsApproximate Dimensions in Inches4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com43


Type 6957AC Navy ContactorsN878-Size 5 and N1178-Size 5 SPSpecifications• MIL-SPEC................ MIL-DTL-2212• Operation............... Magnetic• Duty........................ Continuous• Ambient temp........ 50°C• Insulation............... Class B, except coils, Class ADiagram SymbolsElectrical Data (Enclosed)N878 N1178Number of Poles43Ampere Rating – Enclosed270420Horsepower Rating – 440V, 3-Phase, 60 Hz 200375Maximum Break – Amperes at 484V, 40% PF 1620 2520No. of Interlocks – HI-Shock NO1, 2, 4 1, 2, 4NC1, 2, 4 1, 2, 4Interlock ContactAmperesMake Break Continuous440V AC 6 1 15110V AC 15 1 15Coil Data – 60 Hertz (All Devices)InrushSealedContactor WeightAmperesWattsVAAmperesWattsVA440V4.121017500.23688N878110V16.421017500.83688N1178Pounds 40 41Approximate Dimensions in Inches44Motor Control and Operator Interface


Type 6957AC Magnetic ContactorsAC Magnetic ContactorsMain ContactsStandard “Quiet” 2Size Device NumberAuxiliary ContactsRating (Amperes) Numbers <strong>Catalog</strong> number 1 <strong>Catalog</strong> number 10 N1291 18 3NO 1N0 6957ED58-1_ 6957ED58-1_Q123 54 5N850 274NO3NO2NO-2NC2NO-1NC6957ED25-1_6957ED25-4_6957ED25-1_Q6957ED25-4_QN851 27 5NO 3 2NO-1NC 6957ED26-4_ 6957ED26-4_QN894 45N895 45N846 90N847 90N862 135N863 1355 5 N878 2705 SP 5 N1178 4204NO4NO3NO5NO 35NO 34NO4NO4NO3NO3NO5NO 35NO 34NO4NO4NO3NO3NO5NO 35NO 34NO4NO4NO3NO3NO3NO-2NO-2NC2NO-2NC-1NO-2NC-2NO-2NC4NO-4NC2NO-1NC3NO-3NC-3NO-3NC-2NO-2NC4NO-4NC2NO-1NC3NO-3NC-3NO-3NC1NO-1NC2NO-2NC4NO-4NC1NO-1NC2NO-2NC4NO-4NC6957ED29-1_6957ED29-2_6958ED29-4_6957ED30-1_6957ED30-2_6957ED31-1_6957ED31-2_6957ED31-3_6957ED31-7_6957ED31-8_6957ED32-1_6957ED32-2_6957ED33-1_6957ED33-2_6957ED33-3_6957ED33-7_6957ED33-8_6957ED34-1_6957ED34-2_6957ED39-1_6957ED39-2_6957ED39-3_6957ED53-1_6957ED53-2_6957ED53-3_6957ED29-1_Q6957ED29-2_Q6958ED29-4_Q6957ED30-1_Q6957ED30-2_Q6957ED31-1_Q6957ED31-2_Q6957ED31-3_Q6957ED31-7_Q6957ED31-8_Q6957ED32-1_Q6957ED32-2_Q6957ED33-1_Q6957ED33-2_Q6957ED33-3_Q6957ED33-7_Q6957ED33-8_Q6957ED34-1_Q6957ED34-2_Q6957ED39-1_Q6957ED39-2_Q6957ED39-3_Q6957ED53-1_Q6957ED53-2_Q6957ED53-3_Q6 N630 540 3NO 1NO 6957ED6-_ _ 4 -Magnetic Coil SuffixContact factory for other volts and hertzSuffix LetterCoil Voltage (60Hz)Size 0 and 1 thru 5 SP Size 6 Only440220110High Temperature (65ºC Ambient) and Very Quiet(MIL-STD-740-2) Magnetic ContactorsThe high temperature, very quiet magnetic contactor (HTVQ)is qualified to operate in a 65°C Ambient temperature andmeets the noise limits of MIL-STD-740-2.ABCCBAReplacement Type 6957 AC Magnetic ContactorsSize Device Number <strong>Catalog</strong> number 6Relay N841 6957ED241 N892 6957ED271 N893 6957ED28Timer N867 6957ED351 Add or insert Magnet Coil Suffix letter from table at left.Examples: 6957ED58-1A. 6957ED58-1AQ.2 “Quiet” devices are qualified to MIL-STD-740B.3 One pole has half rating.4 Contactor factory mounted to a plywood panel. Latching relaynot included.5 No-NC auxiliary contacts in the same cavity (adjacent to eachother) must be wired with the same voltage and polarity.6 These are replacement devices only. Obtain complete PartNumber from existing controller bill of material.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com45


Type 6957AC Magnetic Pneumatic Timing Relay – N907When ordering specify• <strong>Catalog</strong> numberGeneralThe relay must be adjusted toprovide timing in the range of 0.05seconds to three minutes.Minimum time between successiveoperations – 0.2 seconds –Specification – DTL-2212-H.AC Pneumatic Timing RelayTypeTimer(ON Delay)Timer(OFF Delay)ContactsSuffix Letter<strong>Catalog</strong> No. 1Main Timing 440V 60Hz 110V 60Hz1NO-1NC Timed 6957ED41-1 A B1NO-1NC1NO-1NC1NO-1NC2NO-2NCTimed Inst.Timed Inst.6957ED41-36957ED41-36957ED41-56957ED41-51NO-1NC Timed 6957ED41-2 A B1NO-1NC1NO-1NC1NO-1NC2NO-2NCTimed Inst.Timed Inst.6957ED41-46957ED41-46957ED41-66957ED41-61 Complete <strong>Catalog</strong> number consists of the Basic Number, plus the Suffix Letter.Example: 6957ED41-1A.AAAAAAAABBBBBBBBApproximate Dimensions in InchesThis timing relay can be supplied foreither On Delay or OFF Delay timing,but is not convertible from one tothe other.NOTE: Solenoid plunger may moveduring shock and cause contacts tooperate. An energized timing relaymay even recycle.Connection DiagramsAmpere Rating – AC Pilot DutyAC Volts440 110Continuous 15 15Maximum Interrupting 6 15Maximum Inrush 10 4046Motor Control and Operator Interface


Type 6957AC Multi-Pole General Purpose Relay – N1154Specifications• MIL-SPEC . . . . . . . . . . . . . .MIL-DTL-2212• Number of poles . . . . . . . .8 maximumInterlock ContactAmperesMake Break Continuous440V AC 6 1 15110V AC 15 1 156957ED59-10C8-Pole• Contact bounce..... 4 milliseconds – Equivalent toClass II shockproofness as defined inMIL-R-19523A• Contact weight....... 2.4 PoundsWhen ordering specify• <strong>Catalog</strong> numberCoil Data – 60 Hertz (All Devices)440V110VFeatures• Replaceable contacts fully rated to 440V.• Easy installation and wiring.• Repair part commonality with widelyused Size 1 N850 device.• Low Noise (Quiet) version available.InrushSealedAmperesWattsVAAmperesWattsVA0.461702000.045.417.81.841702000.165.417.8Approximate Dimensions in InchesCoil Data – 60 Hertz (All Devices)<strong>Catalog</strong> number 16957ED59-16957ED59-26957ED59-36957ED59-46957ED59-56957ED59-66957ED59-76957ED59-86957ED59-96957ED59-106957ED59-116957ED59-126957ED59-136957ED59-142NO43210876543210Poles1 Add Magnet coil Suffix to Part Number for appropriate coilvoltage. Example: 6957ED59-2A for 440V AC coil.2 Add “Q” suffix to part number for “Quiet” version.Example: 6957ED59-2AQ.Quiet devices meet MIL-STD-740B.NC01234012345678SuffixABCCoil Voltage440V220V110V4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com47


Type 6957ED104Navy Electronic Overload Relay – N2000A more capable and upgraded product is the NEMOfound on page 10.N2000GeneralThe N2000 Overload Relay is a solid-state overload relaydesigned to protect a motor against excessive heavy loads.Features• Motor trip current selected by program function(no heater coils required)• Separate trip curves available for standard, high efficiencyand high inertia motors• Phase-loss protection• Phase-unbalance protection• JAM protection• Auto-rest• Undercurrent trip• Emergency runProgrammabilityThe N2000 can be programmed with the Hand HeldProgrammer shown on page 52.The N2000 is available in five current ranges:• Size A...................... (0.25 to 18A)• Size B..................... (9 to 32A)• Size C...................... (16 to 72A)• Size D..................... (31 to 135A)• Size E...................... (135A and above – requires external CTs)<strong>Catalog</strong> number Format — N2000 Overload Relay48Motor Control and Operator Interface


Type 6957ED104Navy Electronic Overload Relay – N2000Approximate Dimensions in Inches4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com49


Type 6991ED27Navy Communication Module – N2001A more capable and upgraded product is the NEMOfound on page 10.Specifications MIL-DTL-2212HRatings• EnvironmentalEnclosure...................................GeneralOperating temp..........................-40°C to +50°CStorage temp.............................-40°C to +80°CHumidity.....................................95% non-condensingN2001GeneralThe N2001 Navy Communication Module (NCM) connectsthe N2000 Navy Electronic Overload Relay (NEOLR) to aProfibus or Modbus-RTU communication network. The NCM isdesigned to mount under the NEOLR on a controller panel. Areceptacle on the top of the NCM connects directly into a plugon the bottom of the NEOLR. The NCM and NEOLR provideusers with the ability to control and monitor the controlleroperation. The NCM also includes independent discreteinputs and outputs that can be monitored and controlled overthe network.)<strong>Catalog</strong> number Format — N2001 Communication Module• Input PowerVoltage........................................115V AC or 440V AC, +10%-20% (model dependent)Frequency...................................60 Hz ±3%Burden........................................10 VA• Auxiliary InputVoltage........................................115V AC or 440V AC, +10%-20% (model dependent)Frequency...................................60 Hz ±3%Burden........................................2.7 mA @115V AC,5 mA @ 440V ACTurn ON delay.............................32 millisecondsTurn OFF delay...........................32 millisecondsTurn ON level..............................92V AC minimum for 115V AC352V AC minimum for 440V ACTurn OFF level............................12V AC maximum for 115V AC44V AC maximum for 440V ACWithstand voltage......................1880V AC for 1 minute• Auxiliary OutputOutput circuit has two triacs in series.Voltage........................................115V AC or 440V AC, +10%-20% (model dependent)Frequency...................................60 Hz ±3%Continuous rating......................200 mAHolding current..........................20 mA minimumOFF leakage current..................5 mA maximumInrush ratin................................14A for 100 msTurn ON delay.............................32 millisecondsTurn OFF delay...........................32 millisecondsWithstand voltage......................1880V AC for 1 minute50Motor Control and Operator Interface


Type 6991ED27Navy Communication ModuleApproximate Dimensions in Inches and Weight4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com51


Type N2000HHPN2000 Hand Held ProgrammerA more capable and upgraded product is the NEMOfound on page 10. The NEMO does not require aspecial external programming device.N2000HHPSpecificationsRatings• Recharger powersupply requirements.................110/220V AC, 50/60 Hz9V DC, 300 mA• Operating andstorage temperature.................0-50°C ambient,90% RH non-condensing• Battery requirements................4 AA 60 mAH NiCdrechargeable batteriesGeneralThe N2000 Hand Held Programmer (N2000HHP) is designedto facilitate the setup of any of the various styles of theN2000 Overload Relay. The N2000 Overload Relay familycontains many programmable motor protection and controlfeatures. The N2000HHP is able to access and modify all ofthe programmable features of the N2000 Overload Relay.These features may be accessed directly via the functionselect keys, or indirectly by means of stored setups.The N2000HHP supports multiple customer definablesetups. In addition to the direct programming functions, theN2000HHP also supports diagnostic and monitoring functionssuch as start/stop and current display. The N2000HHP isdesigned to provide enough voltage to the N2000 OverloadRelay to power its logic circuits, and to allow programmingeven when the N2000 Overload Relay is not energized.52Motor Control and Operator Interface


Type 6957AC Navy Overload Relay – N750Overload RelaysNumber ofButtonsTerminal RatingAmperesMarkings<strong>Catalog</strong>Number6957ED14-3AWhen ordering specify• <strong>Catalog</strong> numberSpecifications• MIL-SPEC......................MIL-DTL-2212• Compensation.............Insensitive to variations intemperature – Less than 3% changein trip current for each 10°C changein ambient• Trip Mechanism...........Eutectic alloy• Number of Heaters......2 (phase)• Motor Current Range...0.5 to 126 Amps 2• Relay Weigh.................1.0 Pounds 3Approximate Dimensions in InchesStandard Devices5010050100150100501005010050210050100503100With Remote (Solenoid) Reset 1123501005010050100RESETRESET 4RESET 3STOP — RESETSTART —STOP/RESETEM. RUN —STOP/RESETSTART — RESETEM RUN — START —STOP/RESETRESETRESET 3RESET 46957ED14-1A6957ED14-6A6957ED14-26A6957ED14-36A6957ED14-24A6957ED14-25A6957ED14-27A6957ED14-34A6957ED14-2A6957ED14-7A6957ED14-4A6957ED14-9A6957ED14-5A6957ED14-10A6957ED14-3A6957ED14-8A6957ED14-11_6957ED14-16_6957ED14-15_6957ED14-20_6957ED14-38_6957ED14-37_50 START — STOP/RESET 6957ED14-1250100EM RUN — STOP/RESET6957ED14-14_6957ED14-19_100 START — RESET 6957ED14-17_50100EM RUN — START —STOP/RESETFor Heater Coil selection, see Page 60.6957ED14-13_6957ED14-18_1 Add Suffix Letter for solenoid coil voltage.Example: 6957ED14-19F. Contact factory for information.2 For current limiting reactors or current transformers, contact the factory.3 Device supplied with extra terminals.4 Device has a Form C contact alarm circuit. Consult factory for application.Replacement Operator BootsNumber of Buttons123Boot Part Number32-1732-25132-20Diagram Symbols4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com53


Type 6957AC Navy Overload Relay – N750Trip AdjustabilityThe relay may be adjusted to trip at a value between 90 and110 percent of the rated coil current. Loosening the bindingscrews that hold the relay heater coil and moving the heatercoil out away from the relay will increase the value of currentrequired to trip the relay. Moving the heater coil assembly inwill decrease the value of current required to trip the relay.Serrations on the terminal plates and on the underside ofthe slotted brackets of the heater coil assembly securely lockthe heater coil in position when the binding head screws aretightened.Trip Curves54Motor Control and Operator Interface


Type 9104AC Heater CoilsOverload Heater Coils for N750Heater CoilGeneralThe 9104 Heater Coils listed at right arefor use on the following AC magneticStarters with the N750 Overload Relay:6262............................69636966............................69676968............................6999Heater SelectionSelect the Heater based on motornameplate full load current.Heater Coils are rated to protect 40°Cmotors, and open and dripproof motorshaving a service factor of 1.15 wherethe motor and the controller are at thesame Ambient temperature.For other conditions:A. For 50°C, 55°C, 75°C rise motors andenclosed motors having a servicefactor of 1.0, select a heater coil twosizes smaller.B. Ambient temperature of controllerlower than motor by 26°C, use onesize smaller heater coil.C. Ambient temperature of controllerhigher than motor by 26°C, use onesize larger heater coil.Ultimate tripping current of heater isapproximately 1.20 times the minimumcurrent listed in the tables.For Size 1-4 ControllerMotor Amperes 1<strong>Catalog</strong> Motor Amperes 1<strong>Catalog</strong> Motor Amperes 1Number 2Number 2Min. Max. Min. Max. Min. Max.0.50.540.590.660.70.8170.8670.9421.021.111.181.291.41.521.611.761.892.062.222.392.62.782.973.250.530.570.630.690.740.8660.9411.011.11.171.281.391.511.61.751.882.052.212.382.592.772.963.243.52H3815H3816H3817H3818H3819H3915H3916H3917H3918H3919H3920H3921H3922H3923H3924H3925H3926H3927H3928H3929H3930H3931H3932H39333.533.84.074.374.755.155.576.056.5277.568.168.759.5810.311.312.213.114.115.216.417.919.320.93.794.064.364.745.145.566.046.516.997.558.158.749.5710.211.212.1131415.116.317.819.220.8224For Controller with Current TransformersSize 3 and 4For use with 30.9:1 TransformerH3934H3935H3936H3937H3938H3939H3940H3941H3942H3943H3944H3945H3946H3947H3948H3949H3950H3951H3952H3953H3954H3955H3956H3957Sizes 5 and 5 SPFor Use With 62:1 Transformer22.524.226.228.530.833.23638.842.345.949.353.157.761.967.472.578.88591.710010811724.126.128.430.733.135.938.742.245.849.25357.661.867.372478.784.991.699.91071161261 Based on relay inside a controller and all in a 50°C ambient.1 <strong>Catalog</strong> number must have a 9104 prefix to be complete. Example: 9104H3945. Each catalogNumber above covers one heater coil only. Two are required for a three-phase application.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com<strong>Catalog</strong>Number 2H3958H3959H3960H3961H3962H3963H3964H3965H3966H3967H3968H3969H3970H3971H3972H3973H3974H4078H4079H4080H4081H4082Size 6For use with 120:1 TransformerMotor Amperes 1<strong>Catalog</strong> Motor Amperes 1<strong>Catalog</strong> Motor Amperes 1Number 2Number 2Min. Max. Min. Max. Min. Max.53.257.262.26772.378.583.289.297.510611412213114257.162.166.972.278.483.189.197.4105113121130141153H3925H3926H3927H3928H3929H3930H3931H3932H3933H3934H3935H3936H3937H393884.391.697.510611412413614615716817819420422424125828030432936339142091.597.4105113123135145156167177193203223240257279303328362390419453H3922H3923H3924H3925H3926H3927H3928H3929H3930H3931H3932H3933H3934H3935H3936H3937H3938H3939H3940H3941H3942H3943227247266286312333356390423456488524246265285311332355389422455487523569<strong>Catalog</strong>Number 1H3926H3927H3928H3929H3930H3931H3932H3933H3934H3935H3936H393755


Type 6957Reactor Coils for AC Navy Overload Relay – N750GeneralThe N750 overload relay with parallel reactor is intendedto provide a slower time response to motor inrush currentsthan the standard N750 overload. This is done to eliminatenuisance overload tripping during long duration motoracceleration currents as required by a particular mechanicalsystem.The underlying principle states that as a reactor becomessaturated, its inductive impedance becomes very small incomparison to the heater coil impedance and consequentlythe reactor will handle the largest part of the inrush current,avoiding premature tripping. As the inrush current subsidesto normal full load and the reactor comes out of saturation,the reactor impedance increases to become very large incomparison to the heater coil impedance. The heater coil thencarries most of the full load current and standard overloadprotection is then provided. Each specific heater coil has itsown matching reactor that will provide the time delay required.• Contact factory for application guidance.• When reactors are used, two are required for eachN750 overload relay.Heater and Reactor CoilsMotor AmperesMin. Max.Heater CoilNumberReactor CoilNumberMotor AmperesMin. Max.Heater CoilNumberReactor CoilNumber0.8170.8670.9421.020.8660.9411.011.19104H39159104H39169104H39179104H39189-1584-19-1584-29-1584-39-1584-44.074.374.755.154.364.745.145.569104H39369104H39379104H39389104H39399-1584-149-1584-159-1584-159-1584-161.111.181.291.41.171.281.391.519104H39199104H39209104H39219104H39229-1584-49-1584-49-1584-59-1584-55.576.056.5276.046.516.997.559104H39409104H39419104H39429104H39439-1584-179-1584-179-1584-179-1584-181.521.611.761.891.61.751.882.059104H39239104H39249104H39259104H39269-1584-69-1584-79-1584-89-1584-97.568.168.759.588.158.749.5710.29104H39449104H39459104H39469104H39479-1584-199-1584-199-1584-209-1584-212.062.222.392.62.212.382.592.779104H39279104H39289104H39299104H39309-1584-99-1584-109-1584-109-1584-1110.311.312.213.111.212.113149104H39489104H39499104H39509104H39519-1584-219-1584-229-1584-229-1584-232.782.973.253.533.82.963.243.523.794.069104H39319104H39329104H39339104H39349104H39359-1584-129-1584-129-1584-139-1584-149-1584-1414.115.216.417.919.315.116.317.819.220.89104H39529104H39539104H39549104H39559104H39569-1584-239-1584-239-1584-249-1584-249-1584-2456Motor Control and Operator Interface


Type 6956Size “0” Reverser AssemblyWhen ordering specify• <strong>Catalog</strong> numberGeneralThe Size “0” Reverser Assembly is a special purpose controlpanel consisting of two N1310 contactors, which areelectrically and mechanically interlocked. The assembly iscompletely qualified to MIL-DTL-2212 and is ideally suited forreversing applications that have severe space limitations.<strong>Catalog</strong>Suffix LetterSizenumber 440V 220V 110V0 6956ED464-1 A B CElectrical Data (Enclosed)Number of PolesAmpere Rating – EnclosedHorsepower Rating – 440V, 3-Phase, 60 HzMaximum Break – Amperes at 484V, 40% PFNo. of Interlocks – Hi Shock NONC 1Interlock ContactCoil Data – 60 Hertz (All Devices)1AmperesMake Break Continuous440V AC 6 1 15110V AC 15 1 15InrushSealedReverser WeightAmperesWattsVAAmperesWattsVA440V0.461702000.045.417.8N1310318510811N1310Pounds 7110V1.841702000.165.417.8This NC contact is factory wired for electrical interlocking. It cannot beused in other circuits.Approximate Dimensions in Inches4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com57


Type 6957AC Magnetic Latch Relay – N639GeneralThe contact setting on this relay is retained or latched witha two-position toggle mechanism. No permanent latchingmagnets are used.The set of contacts marked “A” are designed for control of thecoil circuits and is not adaptable for other circuits. The setof contacts marked “B” are available for control of externalcircuits.The coils are energized momentarily to position the switchand are de-energized by the opening of the corresponding “A”contacts on the switch.When ordering specify• <strong>Catalog</strong> number6957ED12-5BType Contacts <strong>Catalog</strong> number .440V 60HzSuffix Letter110V 60HzLatch 1NO-1NC 6957ED12-5 B C1 Complete <strong>Catalog</strong> number consists of the Basic Number, plus thesuffix.Example: 6957ED12-5B.Weight: 2 Lbs.QPL Test reference: NY 4456-A-39AApproximate Dimensions in Inches1Ampere Rating AC Pilot DutyContinuousMaximum InterruptingMaximum InrushTypical Wiring DiagramAC Volts440V 60 Hz 110V 60 Hz15610151540NOTE: In each A-B contact pair, the contacts must be wired with the samepolarity.58Motor Control and Operator Interface


Type 6922DC Manual Across-the-Line StarterStarter in watertight enclosureWhen ordering specify• <strong>Catalog</strong> number• Horsepower• Voltage• Full load motor current• Motor inrush current• Type of motor with which starter is to be used• ApplicationSpecifications• MIL-SPEC..................MIL-DTL-2212• Enclosure.................Dripproof or watertight• Operation.................Manual• Type..........................Across-the-line• Function...................Motor starting• Duty..........................Continuous• Protection.................Low voltage release effect• Overload protection.Thermal type relay• Compensation.........Change in rating does not exceed 5%for each 10°C change in ambientbetween 20°C and 70°C• Adjustability.............Adjustable from 90 to 110% ofrelay rating• Type of reset.............Hand from STOP button• Performance............Manual• Ambient temp..........50°C• Insulation.................Class B• Emergency Run........By holding START button depressedMax. hpStarter115V orDripproofWatertight230V DC Cat. No. Lbs. Net Cat. No. Lbs. Net½ 6922H36B 9.5 6922H37D 16.5Select heaters from table on Page 60.Typical Wiring DiagramApproximate Dimensions in Inches4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com59


DC Manual Across-the-Line StarterOverload Heater Coil SelectionGeneralThe 9104 Heater Coils listed atright are for use on Type 6922Manual Starters.Heater SelectionSelect Heater Coils based onmotor nameplate full load current.Heater coils are rated to protect40°C motors. Open and dripproofmotors have a service factorof 1.15 where the motor andthe controller are at the sameAmbient temperature.For other conditions:A. For 50°C, 55°C, 75°C risemotors and enclosed motorshaving a service factor of 1.0,select a heater coil two sizessmaller.B. Ambient temperature ofcontroller lower than the motorby 26°C, use one size smallerheater coil.C. Ambient temperature ofcontroller higher than the motorby 26°C, use on size larger coil.Ultimate tripping current of heateris approximately 1.20 times theminimum current rating listed inthe tables.NOTE: There are some coils thatrequire minimum order quantity.Motor Amperes 1Motor Amperes<strong>Catalog</strong> number1Min. Max. Min. Max0.320.3440.3710.3980.4250.4620.5010.5410.5840.630.6720.7310.790.860.9181.011.081.161.271.361.471.581.691.831.972.172.322.542.750.3430.370.3970.4240.4610.50.540.5830.6290.6710.730.7890.8590.91711.071.151.261.351.461.571.681.821.962.162.312.532.7439104H38129104H38139104H38149104H38159104H38169104H38179104H38189104H38199104H38209104H38219104H38229104H38239104H37549104H37559104H37569104H37579104H37589104H37599104H37609104H37619104H37629104H37639104H37649104H37659104H37669104H37679104H37689104H37699104H37703.013.243.563.844.174.514.955.35.86.266.87.388.759.610.511.412.313.314.415.416.41819.320.822.224.126.43.233.553.834.164.54.945.295.796.256.797.297.998.749.5910.411.312.213.214.315.316.317.919.220.722.12426.328.81 Based on starter in a maximum 50°C ambient.2 These coils are quantity sensitive and have minimum order size of five (5) pieces.<strong>Catalog</strong> number9104H37719104H37729104H37739104H37749104H37759104H37769104H37779104H37789104H37799104H37809104H37819104H37829104H37839104H37849104H37859104H37869104H37879104H37889104H37899104H37909104H3791 29104H3792 29104H3793 29104H3794 29104H3795 29104H3796 29104H3797 29104H3798 260Motor Control and Operator Interface


Type 6942Engineered DC Magnetic ControlWhen ordering specify• Type number• Specifications applying• Voltage• Horsepower rating• Full load motor current• Local or remote master switch• Scheme of operation (LVP or LVR)• Semi-automatic or automatic operation• For adjustable speed motor - speed range by fieldcontrol, shunt field resistance, field current at weakenedfield speed, and horsepower rating at full speed• Application - nature of load, Example: fan, MG set• Any special contract requirements involving operation,construction, plans, packing, etc.• ShockproofnessSpecifications• MIL-SPEC.................... MIL-C-2212• Enclosure................... Dripproof; for watertight enclosedcontrollers, contact factory• Operation................... Magnetic• Type............................ Sizes 1 to 7 – Resistor• Function -• Non-reversing type..... Motor starting; motor starting andspeed regulation by field control• Reversing type........... Refer to factory• Duty............................ Continuous• Protection................... Low voltage protection and low voltagerelease types• Shockproofness......... Timer is mechanically shockproof only.• Overload Protection... Thermal or magnetic (based onapplication)• Performance.............. Non-automatic or automatic (dependingupon type of master switch used)Standard controller design will permit accelerating timerand contactors to recycle under shock. To eliminaterecycling (if system prohibits this), additional componentsand circuitry will be required. Refer to factory for pricing withcomplete details.• Ambient temp............ 50°C• Insulation................... Class B, except for contactor coilsClass ASizeMaximum Horsepower230VNumber ofAcceleratorsDimensionReferences 11 5 1 A2 10 1 B3 25 2 C4 40 2 D5 75 2 E6 150 3 FApproximate Dimensions in Inches and WeightsDimensionReferenceLetter 2 WideDimensions in InchesHigh DeepABCDEF161818243422242632501010121317Contact Factory1 See Approximate Dimensions and Weights table.2 From Specifications table above.Weight Lbs.801001252005004265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com61


Type 6942Engineered DC Magnetic ControlAdding Features / Modifying / Sample Circuit DiagramsOptional FeaturesAdded1. Relays – WeightField failure ..................................................................... 8 lbs.Series (for current limit acceleration)(N175)............................................................................ 8 lbs.Control (N617)................................................................. 7 lbs.Timer, N907 – DC(for timed acceleration).................................................. 4 lbs.Accelerator, size 2........................................................... 7 lbs.Accelerator, size 4........................................................... 8 lbs.Overload Relay, N709 (Magnetic)Overload Relay, N750..................................................... 4 lbs.(up to 126 Amperes) 1 .....................................................1 lb.Added2. Pilot Devices – WeightMomentary Pushbutton................................................... 5 oz.Indicator Light (includes resistors)................................24 oz.Selector Switch................................................................. 8 oz.Rotary Switches – 4 finger.............................................12 oz.7 finger.............................................24 oz.3. Other Additions –Additional ControlCircuit Fuse...................................................................... 8 oz.Wired Interlock................................................................. 8 oz.Anti-Condensate HeatersSize 1, 2................................................................................. --Size 3, 4................................................................................. --Size 5...................................................................................... --Size 6...................................................................................... --1 The N750 Overload Relay requires one Heater Coil for DC operation. Usethe Controller, Size 1-4, table on Page 60 for Heater Coil selection.Sample Circuit Diagrams62Motor Control and Operator Interface


Type 6938DC Magnetic Contactors and RelaysN668 - Size 1 Contactor 25 AmpWhen ordering specify 1• Base catalog number• Application• Contact amperes• Blow-out coil amperes 2• Coil voltage• Auxiliary contact needs• Thickness of mounting panel, if appropriate 3• Example: 6938ED20, 75 Amp contacts,75 Amp blow-out coil,230V DC operating coil,1NO-1NC auxiliary contact,0.75 inch thick mounting panel.Specifications• MIL-SPEC.................... MIL-C-2212• Operation................... Magnetic• Ambient temp............ 50°C• Insulation................... Class B, except coils, Class A• Mounting.................... Designed and shipped for mountingto a melamine panel if appropriate.Standard thickness is 0.63 inch,other thicknesses are available. Somedevices can mount directly to a steelpanel. See Page 64, DimensionReference Table.1 Refer to selection table on Page 64.2 A blow-out coil is required to minimize arcing on DC power contactors.To work properly, they must be sized correctly.3 Melamine mounted contactors are shipped mounted to a plywood baseof the stated thickness. This configures the parts in a correct relationshipand provides mounting hardware of the proper length for your application.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com63


Type 6938DC Magnetic Contactors and RelaysContactors - Include Blow-Out CoilsSizeDevice NumberMain Contacts Available 1RatingPoles Aux. ContactsAvailable CoilVoltage (DC)Base <strong>Catalog</strong> 2 3NumberDim. Ref.1234N668N669N700N70125A50A100A150A2NO2NO2NO2NO1NO-1NC2NO-2NC2NO-2NC2NO-2NC115, 230, 250115, 230, 250115, 230, 250115, 230, 2506938ED186938ED196938ED206938ED21ABCD56-N542N545N546444300A600A1200A1NO1NO1NO1NO-1NC2NO-1NC1NO115, 230, 250115, 230, 250115, 2306938ED76938ED86938ED9EFGContactors - No Blow-Out CoilsSizeDevice NumberMain Contacts Available 1RatingPoles Aux. ContactsAvailable CoilVoltage (DC)Base <strong>Catalog</strong> 2 3NumberDim. Ref.24N912N91350A150A1NO1NO1NO-1NC1NO-1NC115, 230, 250115, 230, 2506938ED386938ED39HJRelays - No Blow-Out CoilsType Device Number Description ContactsAvailable CoilVoltages (DC)Base <strong>Catalog</strong> 2 3NumberDim. Ref.ControlTimerTimerN617N867N907Control CircuitDuplex TimerON/OFF Delay4NO-4NC2NO-2NC1NO-1NC115, 230, 250115, 230, 250115, 230, 2506938ED166938ED376938ED46KLMOverloadSeriesLatch 4N709N175N621Magnetic OperationCurrent SensitiveSpecial Purpose1NC1NC2NO-2NC115, 230, 250Not Applicable115, 230, 2506938ED226938ED36938ED175NPR1 Some devices offer various auxiliary contact configurations. Data shown is maximum available.2 <strong>Catalog</strong> numbers shown are not complete. A suffix is required to identify coil voltage, auxiliary contact configuration and panel thickness.Contact factory for assistance.3 The <strong>Catalog</strong> number do not include economizing resistors. Contact factory for assistance.4 For two-pole (main contact) applications, use of N621 is required. Contact factory for assistance.5 Need motor full load rating.Approximate Dimensions in InchesDimension Reference TableRef.WidthPanel Space (InchesFootprintHeightDepthRequiredWeight Lbs.Mount toSteel PanelABCDE4.55.5787.56.5688.5144.566.57.58.5510162528YesYesYesNoNoFGHJK810.57.54.542312.51112.56.58.514.55.58642137787NoNoYesYesNoLMNPR4.544.53.83.87.56.59.54.56.55.555.555.884427YesYesNoYesNo64Motor Control and Operator Interface


Type 6901Standard Dripproof EnclosuresGeneralEnclosures listed below are suppliedwith all panel and enclosure mountingholes pre-drilled. Other sizes andclasses (e.g. Watertight, Non-magnetic,Spraytight) are available. Contact thefactory for price and availability.WraparoundWhen ordering specify• <strong>Catalog</strong> numberHingedSpecificationsMIL-SPEC.....................MIL-DTL-2212,MIL-E-2036Class...........................DripproofVenting........................NoneType 6901 Dripproof EnclosuresEnclosure Dimensions in InchesInterior Panel Dimensions in InchesMounting 1Panel MountingWide A High B Deep CWidth HeightD E Holes Width Height HolesWraparound Cover Style 28.248.249.3811.3813.7412.1214.1214.1216.1216.1211.315.5617.319.816.818.1218.1220.1220.1222.126.686.688.068.948.069.769.769.769.769.764.754.756810.24Hinged Door with Diamond Latch Style16.1218.1222.1224.1226.1228.129.769.769.768.510.510.512.512.512.514.518.59.3813.6214.51714.88161618182022242644444444444666.56.57.759.75121012121414141620812.251315.2513.514.514.516.516.518.520.522.524.51 Enclosures are designed for 0.50” diameter mounting bolts.2 Wraparound style enclosures are not suitable for cover mounted control elements.Wraparound Cover StyleHinged Door Style4.754.756810.258.510.510.512.512.512.514.518.5610.25111311.7513131515171921234666644666699Door toPanel5.245.246.637.456.638.128.128.128.128.128.128.128.12WeightLbs.17212635363336404347506478<strong>Catalog</strong> number6901ED101-1A6901ED101-2A6901ED101-3A6901ED101-4A6901ED101-5A6901ED102-1A6901ED102-2A6901ED102-3A6901ED102-4A6901ED102-5A6901ED102-6A6901ED102-7A6901ED102-5AEnclosure Mounting Reference4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com65


Type 6981ED165 and 6981ED166Separate Flush Mounting Pushbuttons and Indicating LightsWhen ordering specifyUnits by catalog number - Examples table at right• <strong>Catalog</strong> number and complete descriptionUnlisted Units – See Page 67GeneralEach single element unit consists of either a contactblock or an indicating light element, brackets for behindthe panel mounting, and the gasket and mountingplate for the front of the panel. On the indicating light,a lens is sandwiched between the gasket and themounting plate. Mounting hardware is supplied for panelthicknesses as shown in sketches below.Indicating light elements are of the double lamp type.AC indicating lights have self-contained 440/1.8-1.8V or117/1.8-1.8V transformers. Indicating light current drawis 1.6 mA @ 440V and 6.4 mA @110V. DC indicatinglights require a separate series resistor for each bulbat any supply voltage above 24 volts. Resistors are notincluded in the price.Specifications• MIL-SPEC......................... MIL-DTL-2212• Duty................................. Continuous• Ambient temp................. 50°C• Insulation........................ Class B• Enclosure........................ Open type for watertightmounting (3 ft. head – 5 min.)Rating (Pushbutton)InductiveRatingMakeBreakAC 60 HertzDC100V 220V 440V 115V 230V 355V606505505Examples of Common <strong>Catalog</strong> numbersTo Order by Description See Page 67ElementIdentification Marking 2Code 1PushbuttonsCCACCCCIndicating LightsB1A2C5FASTSLOWL.P. BYPASSFORWARDREVERSESTARTSTOPMOTOR RUNNINGMOTOR RUNNINGPOWER ON220.750.75<strong>Catalog</strong> number6981ED165-16981ED165-26981ED165-36981ED165-46981ED165-56981ED165-66981ED165-76981ED166-16981ED166-26981ED166-31 For description of Element Identification Code, see Page 67.2 Pushbutton legend stamped on legend plate. Indicating lightlegend engraved on lens.0.50.566Motor Control and Operator Interface


Type 6981ED165 and 6981ED166Separate Flush Mounting Pushbuttons and Indicating LightsWhen ordering specifyOrder by complete description –• Basic catalog number• Element Identification Code• Required LegendExample:6981ED166- with element B5, marked POWER AVAILABLELegend Data• Pushbutton legend may consist of one or two lines, each with amaximum of eight characters.• Light legend may consist of one, two or three lines, each with amaximum of eight characters.• Use of the letter “I” in a line will permit one additional character.Information Table for Ordering by DescriptionBasic <strong>Catalog</strong> number Element Identification Code Circuit Symbol Description Weight – Oz.6981ED165-APushbutton –2NO Contacts 56981ED165-BPushbutton –2NC Contacts 56981ED165-CPushbutton –1NO-1NC Contacts 56981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-6981ED166-Lens ColorRedGreenAmberBlueWhiteRedGreenAmberBlueWhiteRedGreenAmberBlueWhiteRedGreenAmberBlueWhiteA1A2A3A4A5B1B2B3B4B5C1C2C3C4C5D1D2D3D4D5Indicating Light –115V 60Hz 2Indicating Light –440V 60Hz 2Indicating Light –24V DC 1 3Indicating Light –410V DC 41 These are Resistor Type indicating lights. Each lamp requires the following series resistance depending on the voltage used.Resistors must be separately mounted and are not included.24V DC – None120V DC – 2800 Ohms, 5 Watts48V DC – 710 Ohms, 2 Watts 240V DC – 6300 Ohms, 10 WattsResistor not included in above price. 250V DC – 8000 Ohms, 10 Watts (Nominal submarine voltage 180-355V range)2 Lamp type: No. 1769, T1-3/4 Midget Screw Base.3 Lamp type: No. 335, T1-3/4 Midget Screw Base.4 Lamp type: No. 373, T1-3/4 Midget Screw Base.77444265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com67


Type 6981ED165 and 6981ED166Separate Flush Mounting Pushbuttons and Indicating LightsDrilling and Spacing Dimensions (in Inches)Flush Mounting PushbuttonFlush Mounting Indicating Light - Front View of Door68Motor Control and Operator Interface


Replacement Indicating Light TransformersSpecificationsManufactured to BUSHIPS DWG 9000 S6202 F 73919.GeneralWhen installed in the flush mounted configuration or in aremote control station enclosure, the transformers meetthe shock, vibration and temperature requirements ofMIL-DTL-2212.Lamps are included with the transformer.Description<strong>Catalog</strong> number115V AC to 2V AC Type B-41A 42-1091440V AC to 2V AC Type B-41B 42-1091-2Replacement Lamp, Midget ScrewBase #1769 2.5V28-6514265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com69


Type 6981ED200Separate Flush Mounting Selector SwitchesSpecifications• MIL-SPEC......................... MIL-DTL-2212• Enclosure........................ Open, for watertight mounting• Duty................................. Continuous• Operation........................ Manual• Ambient temp................. 50°C• Insulation........................ Class BWhen ordering specifyUnits by <strong>Catalog</strong> number - Examples table at right• <strong>Catalog</strong> NumberUnlisted Units – Order by complete description, including:• Type number – 6981ED200• Element Identification Code – Consists for a number fromTable 1 on this page and a letter from Table 2 on Page 71.Example: 1A• Legend requiredExample: 6981ED200 switch with element 5P, markedMAN-OFF-AUTO 2GeneralSelector switches for watertight mounting are available in twoorthree-position configurations, self-centering or nonself-centering.Self-centering two-position switches may be spring return fromeither side to center. Three-position self-centering switchesmay be spring return fro m either or both sides to center.The basic selector switch element has a maximum of 8stationary contacts/terminals, 4 in each of two planes.Movable contacts consist of shaft mounted segments,available in several shapes to provide various circuitcombinations for each of the two planes. Segments in thefront and rear plane can be electrically connected by use ofa jumper through the shaft assembly.Segments can be assembled to the shaft in any of fourpositions at 90° displacement. Further variation is availablethough 45° displacement of the shaft when the starwheel isassembled to the shaft.Ordering Instructions for Unlisted UnitsOrder switch by Type Number and Element Identification fromTable 1 on this page and Table 2 on Page 71. Select basicoperating characteristics from Table 1, and circuit from Table2. Specify legend.RatingOperationMakeBreakCarryPartialElement 1IdentificationCode 21234Inductive Load (Amperes)AC 60 HzDC115V 220V 440V 115V 230V 355V30310ElementIdentificationCode1C1B1C1C5P1C6E7A8E5678151.510No. of Positions222233337.5.7510Marking1.11.110Basic Configuration0.550.5510Examples of Some Common <strong>Catalog</strong> numbers andTheir DescriptionsTable 1 –Selector Switch Configurations(Blank)ON/OFFMAN/AUTOOPEN/CLOSEHAND/OFF/AUTOON/OFFSTOP/STARTHAND/OFF/AUTOSTOP/RUN/STARTOperation0.40.410<strong>Catalog</strong> number6981ED200-16981ED200-26981ED200-36981ED200-106981ED200-116981ED200-156981ED200-546981ED200-636981ED200-92Maintained Contact, Center and CWMaintained Contact, Center and CCWSpring Return from CW to CenterSpring Return from CCW to CenterMaintained ContactSpring Return from CW & CCW toCenterSpring Return from CCW to CenterSpring Return from CW to Center1 Element Identification consists of this number plus letter fromTable 2 on Page 71.2 Do not use Element Identification Code as Suffix to <strong>Catalog</strong>Number.70Motor Control and Operator Interface


Type 6981ED200Separate Flush Mounting Selector SwitchesTable 2 – Selector Switch CircuitsPartialElementI.D.Code 1ABCDEFGHJContact1-4 XCircuit ConnectionsPositionCCW C CW1-2 X7-6 X7-8 X1-2 X7-8 X1-2 X3-4 X5-6 X5-8 X1-3 X2-4 X5-7 X6-8 X1-4 X X3-4 X5-7 X6-8 X2-4-5-85-6-8 X1-4 X1-4-6-83-4 X1-2-4 XXX1-2-3 X1-3 X5-6 X XSchematicSymbol 2PartialElementI.D.Code 1KLMNPQRContact1-3-4 X3-4-6-81-2-5-6Circuit ConnectionsPositionCCW C CWXX2-3 X6-7 X1-2 X3-4 X5-6 X7-8 X1-4 X2-3 X5-8 X6-7 X1-2 X3-4 X5-7 X1-4 X2-3 X1-2 X2-3 X1-2 X1-4 X X7-8 X1-2 X1-4 X X5-6 X7-8 X5-8 X6-7 XSchematicSymbol 2PartialElementI.D.Code 1STUWXYZContactCircuit ConnectionsPositionCCW C CW1-4 X X3-4 X7-8 X1-2-4 X1-2-3 X5-6 X1-4 X X1-2 X5-6 X6-7 X X1-4 X X1-2 X6-7 X X7-8 X1-2 X2-3 X X5-8 X X7-8 X1-4 X X1-2 X5-7 X6-8 X1-4 X X1-2 X5-6-8 X5-7-8 XSchematicSymbol 21 Element Identification Code consists of numberfrom Table 1 on Page 70 plus letter from this Table.Example: 1A.2 Numbers adjacent to circuit diagrams representterminals.3 X = Contact closed, all circuits shown with switch incenter position.4 Element with internal jumper between front andrear elements.Approximate Dimensions in Inches and Weights4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com71


Type 6981Watertight Remote Control StationsUsing Pushbuttons, Indicating Lights and Selector SwitchesThree Element StationFive Element StationTwo Element StationWhen ordering specify• <strong>Catalog</strong> number (if known)• Number of elements• Element identification code• Type of each element• Enclosure• For indicating light elements,color of lens• Legend required for each element• Voltage• ApplicationSpecifications• MIL-SPEC .................................................. MIL-DTL-2212• Enclosure ................................................. Watertight – belowExplosion-proof – Page 77Cast brass – Page 79• Operation ................................................. Manual• Ambient temp .......................................... 50°C• Insulation ................................................. Class B• Rating ....................................................... Pilot circuits onlyType ofElementContinousCapacityAmps.VoltsAC (60 Hz)AmpsMakeInductive ratingsAmpsBreakVoltsDCAmpsBreakHeavy-DutyPushbutton1010104402201105050605 156250 12301150.50.752.0Selector Switch1010104402201107.515300.751.53.0250 12301150.40.551.11 Nominal submarine voltage (355 volts maximum).Approximate Dimensions in Inches, Watertight72Motor Control and Operator Interface


Type 6981Watertight Remote Control StationsWhen ordering specify• Enclosure <strong>Catalog</strong> number• Element Identification Code(s) – For Selector SwitchElements on Pages 74 and 75, Element IdentificationCode consists of a number from Table 1 and a letterfrom Table 2. Example: 1A• Location of Elements• Legend required for each ElementGeneralWhenever possible, select a typical pushbutton or indicatinglight station from the tables on Page 76. For example, <strong>Catalog</strong>number 6981ED172-1 covers a two element station with twoType “C” pushbuttons marked START and STOP respectively.If required station cannot be found in the Typical listings, thenselect a station from this and the following pages.Selector switch elements are listed on the following pages.Basic Element Selection Table (Surface Mounting, WT)Number of Units Incomplete <strong>Catalog</strong> number Weight123456981ED1716981ED1726981ED1736981ED1746981ED1752 lbs., 3 oz.2 lbs., 2 oz.2 lbs., 6 oz.3 lbs., 5 oz.3 lbs., 4 oz.Pushbutton ElementsElementIdentificationCodeCircuit Symbol Description WeightAPushbutton2NO Contacts4 oz.Indicating Light ElementsElementIdentificationCodeD1 – RedD2 – GreenD3 – AmberD4 – BlueD5 – WhiteE1 – RedE2 – GreenE3 – AmberE4 – BlueE5 – WhiteF1 – RedF2 – GreenF3 – AmberF4 – BlueF5 – WhiteG1 – RedG2 – GreenG3 – AmberG4 – BlueG5 – WhiteH1 – RedH2 – GreenH3 – AmberH4 – BlueH5 – White1 Lamp Type: No. 1769, T1-3/4 Midget Screw Base.2 These are resistor type indicating lights. Each lamp requires thefollowing series resistance, depending on the voltage used.Resistors must be separately mounted and are not included.Voltage24V DC120V DC240V DC250V DCCircuit Symbol Description WeightIndicating Light –115V 60Hz 1Indicating Light –440V 60Hz 1Indicating Light– 24V DC 2 3Indicating Light –10V DC 4Indicating Light –48V DC 36 oz.6 oz.3 oz.3 oz.3 oz.ResistanceNone2800 ohms – 5 watts6300 ohms – 10 watts8000 ohms – 10 watts (Nominal submarine voltage,180-355V range)BPushbutton2NC Contacts4 oz.3 Lamp Type: No. 335, T1-3/4 Midget Screw Base.4 Complete assembly including resistors. Lamp Type: No. 373,T1-3/4 Midget Screw Base.CPushbutton1NO-1NCContacts4 oz.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com73


Type 6981Watertight Remote Control StationsThe circuits shown in Table 2, on Page 75, are intended foruse with either the two- or three-position selector switch.A portion of the contacts, or circuit, as shown may not beused with a particular basic configuration.Circuits shown are designed to accommodate the majority ofstandard control requirements. Other combinations areavailable and can be set up as required.Locating Depressionon End of ShaftBasic Element ShowingOrientation of TerminalsSelector Switch ElementsSelector switches are available in two- or three-positionconfigurations, self-centering or non self-centering.Self-centering two-position switches may be spring return fromeither side of center. Three-position self-centering switchesmay be spring return form either or both sides of center.The basic selector switch element has a maximum of eightstationary contact/terminals, four in each of two planes.Moveable contacts consist of shaft mounted segments,available in several shapes to provide various circuitcombinations for each of the two planes. Segments in thefront and rear plane can be electrically connected by use of ajumper through the shaft assembly.Segments can be assembled to the shaft in any one of fourpositions at 90° displacement. Further variation is availablethrough 45° displacement of the shaft when the starwheel isassembled to the shaft.Table 1 – Selector Switch ConfigurationsPartialElementIdentificationCode 112345678No. ofPositions1 Element identification consists of this number plus letter fromTable 2 on Page 75.Table 2 is shown on following page.22223333Basic ConfigurationOperationMaintained Contact,Center and CWMaintained Contact,Center and CCWSpring Return fro CW toCenterSpring Return form CCWto CenterMaintained ContactSpring Return from CW &CCW to CenterSpring Return from CCWto CenterSpring Return from CW toCenterWeight8 oz.8 oz.8 oz.8 oz.8 oz.8 oz.8 oz.8 oz.74Motor Control and Operator Interface


Type 6981Watertight Remote Control StationsSelector Switch Elements (Continued)Table 2 – Selector Switch CircuitsPartialElementI.D.Code 1ABCDEFGHJContact1-4 XCircuit ConnectionsPositionCCW C CW1-2 X7-6 X7-8 X1-2 X7-8 X1-2 X3-4 X5-6 X5-8 X1-3 X2-4 X5-7 X6-8 X1-4 X X3-4 X5-7 X6-8 X2-4-5-85-6-8 X1-4 X1-4-6-83-4 X1-2-4 XXX1-2-3 X1-3 X5-6 X XSchematicSymbol 2PartialElementI.D.Code 11 Element Identification Code consists of numberfrom Table 1 on Page 74 plus letter from this Table.Example: 1A.2 Numbers adjacent to circuit diagrams representterminals.3 X = Contact closed, all circuits shown with switch incenter position.4 Element with internal jumper between front andrear elements.KLMNPQRContact1-3-4 X3-4-6-8Circuit ConnectionsPositionCCW C CWXSchematicSymbol 2PartialElementI.D.Code 1SContactCircuit ConnectionsPositionCCW C CW1-4 X X3-4 X7-8 XSchematicSymbol 21-2-5-6X1-2-4 X2-3 XT 1-2-3 X6-7 X5-6 X1-2 X1-4 X X3-4 X5-6 XU1-2 X7-8 X5-6 X1-4 X6-7 X X2-3 X1-4 X X5-8 X1-2 X6-7 XW6-7 X X1-2 X3-4 X7-8 X5-7 X1-2 X1-4 X2-3 X XX2-3 X5-8 X X1-2 X7-8 X2-3 X1-2 X1-4 X X1-4 X X1-2 XY7-8 X5-7 X1-2 X6-8 X1-4 X X1-4 X X5-6 X7-8 XZ1-2 X5-8 X5-6-8 X6-7 X5-7-8 XOptional Features for Watertight Remote Control Stations –• Hinged Protective Covers• Blank Station• Warning Plate• Space Heater (not available in a 5• Special Message Plateelement station)• Special Ink Color on Legend Plate • Non-magnetic Configuration• Special Character Size on Legend • Red Legend PlatePlate• Dim Out Unit on Indicator Light4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com75


Type 6981Watertight Remote Control StationsExamples of Some Common <strong>Catalog</strong> numbers and Their DescriptionsOne Element StationsTwo Element StationsThree Element StationsFour Element StationsFive Element StationsElement Symbol IdentificationPushbuttonsA - 2ND Contact PushbuttonB - 2NC Contact PushbuttonC - 1 NO-l NC Contact PushbuttonElement Identification Code and Marking 1Position 1 (Top) Position 2 Position 3 Position 4 Position 5C - STOPC - STARTC - EM. RUNC - EM. STOP----------------<strong>Catalog</strong> number6981ED171-16981ED171-26981ED171-36981ED171-4E4 - CLOSED - - - - 6981ED171-8 2-9C - STARTC - OPENC - HOISTC - EM. STARTE2 - FASTE3 - OPENE5 - POWER ONE5 - FASTC - STOPC - CLOSEC - LOWERC - EM. STOPE2 - SLOWE4 - CLOSEDA - STARTE5 - SLOW------------------------6981ED172-16981ED172-26981ED172-36981ED172-46981ED172-56981ED172-66981ED172-76981ED172-14A - START C - STOP - - - 6981ED172-20 2-10C - FORWARDC - FASTC - HOISTD2 - MOTOR RUNE2 - MOTOR RUNC - EM. RUNE5 - 0NC - UPC - REVERSEC - SLOWC - LOWERC - STARTC - STARTC - STARTC - ONC - DOWNC - STOPC - STOPC - STOPC - STOPC - STOPC - STOPC - OFFC - JOG----------------6981ED173-16981ED173-26981ED173-36981ED173-46981ED173-196981ED173-66981ED173-96981ED173-11C - TEST C - START C - STOP - - 6981ED173-14 3-0C - E.M RUNE2 - MOTOR RUNE3 - OPENE5 - POWER ONC - FORWARDC - EM. RUNE4 - CLOSEDE2 - HEATER ONC - REVERSEC - STARTC - OPENC - STARTC - STOPC - STOPC - CLOSEC - STOP----6981ED174-16981ED174-26981ED174-36981ED174-4C - HOIST C - LOWER C - FORWARD C - REVERSE - 6981ED174-9 4-5E2 - FASTE3 - OPENE2 - SLOWE4 - CLOSEDC - FASTC - OPEN1 For description of Element Identification codes, see table below.C - SLOWC - CLOSEIndicating Lights 2D - 11OV, 60 Hz Indicating LightE - 440V, 60 Hz Indicating LightF - 24V DC Indicating LightG - 10V DC Indicating LightH - 48V DC Indicating LightC - STOPC - STOP2 Requires Suffix Number to designate lens color. Example: D1-110V, 60 Hz indicating light with red lens.6981ED175-16981ED175-2Indicating Lights Lens Color(Suffix Number to Base Light)1 - Red Lens2 - Green Lens3 - Amber Lens4 - Blue Lens5 - White LensWeightLbs.-Oz.2-72-72-72-72-102-102-102-102-142-142-122-143-03-03-03-23-23-03-23-04-54-74-94-94-124-1276Motor Control and Operator Interface


Type 6981Explosion-Proof Remote Control StationsWhen ordering specify• Complete description of Explosion-Proof Station from tablefollowing. Listed prices include required elements.• Element Identification Code for each element required.Select from the tables on Pages 73 thru 75. For SelectorSwitch elements on Page 74, the Element IdentificationCode consists of a number from Table 1 on Page 74 and aletter from Table 2 on Page 75. Example: 1A.• Location of Elements.• Legend required for each Element.GeneralSelect pushbutton, indicating light or selector switchstation from table following. The prices as listed coverthe complete stations including the required elements.Pushbutton and selector switch elements may beintermixed within a single, two or three-element enclosure.Indicating lights may not be combined with other typeelements. Consult the factory for indicating light elements.Explosion-Proof Stations - NEMA 7 1Number ofElements1Pushbutton. Selector Switch and/orIndicating Light Elements 2Pushbutton, Selector Switch IndicatingLight, AC or DC2 2 - Pushbuttons3 3 - Pushbuttons1 Class 1, Group D, unless specifically defined otherwise.2 Contact factory for other optionsOrder by complete description with Element Identificationfrom Pages 73 thru 75, plus required legend(s).Approximate Dimensions in Inches and Weights, Explosion-Proof4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com77


Type 6981Explosion-Proof Remote Control StationsWhen ordering specify• Complete <strong>Catalog</strong> numberExamples of Some Common <strong>Catalog</strong> numbers and Their DescriptionsElement Identification Code and Marking 1Position 1 (Top) Position 2 Position 3One Element StationC – STOPC – STARTC – EMERG. RUN5A – MAN/OFF/AUTO1P – ON/OFFTwo Element StationC – STARTC – STOPC – OPER.C – CLOSEC – HOISTC – LOWERA – STARTB – STOPA – OPER.A – CLOSEC – UPC – DOWNThree Element StationC – FORWARDC – REVERSEC – FASTC – SLOWC – HOISTC – LOWERA – UPB – DOWN1 For description of Element Identification codes, see table on Page 76.-----C – STOPC – STOPC – STOPB – STOP-----------<strong>Catalog</strong> number6981ED202-16981ED202-26981ED202-36981ED202-66981ED202-86981ED203-16981ED203-26981ED203-36981ED203-246981ED203-256981ED203-366981ED204-16981ED204-26981ED204-36981ED204-23Approximate Dimensions in Inches and Weights, Explosion-Proof78Motor Control and Operator Interface


Type 6981Cast Brass Watertight Remote Control StationsWhen ordering specify• One, Two, or Three Element Station• Element Identification Code for each element required.Select from the tables on Pages 73 thru 75. For SelectorSwitch elements on Page 74, the Element IdentificationCode consists of a number from Table 1 on Page 74 and aletter from Table 2 on Page 75. Example: 1A.• Location of Elements.• Legend required for each Element.Number ofElements123Incomplete <strong>Catalog</strong> number 16981ED2416981ED2426981ED2431 Enclosure size the same for all three stations.Specifications• MIL-SPEC........................MIL-DTL-2212• Enclosure.......................Cast Brass, Watertight• Operation.......................Manual• Ambient temp................50°C• Insulation.......................Class BRatingsType ofElementTwo Element StationHeavy DutyPushbuttonSelectorSwitchContinuousCapacityAmps101010101010Inductive RatingAC (60 Hz)DCAmperesAmperesVoltsVoltsMake Break Break4402201104402201105050607.515305560.751.533 Nominal submarine voltage (355V maximum).250 3230115250 32301150.50.7520.40.551.1Approximate Dimensions in Inches, Cast Brass4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com79


Type 6981Typical Cast Brass Watertight Remote Control StationsWhen ordering specify• <strong>Catalog</strong> numberExamples of Some Common <strong>Catalog</strong> numbers and Their DescriptionsElement Identification Code and Marking 1Position 1 (Top) Position 2 Position 3One Element StationA – STARTC – EMERG RUNA – ON---1---<strong>Catalog</strong> number6981ED241-16981ED241-26981ED241-3Two Element StationC – OPENA – STARTA – ONA – HOISTC – CLOSEA – STOPA – OFFA – LOWER----6981ED242-36981ED242-46981ED242-66981ED242-7Three Element StationC – STARTA – STARTD3 – POWER ONE2 – MOTOR RUNNINGC – STOPB – STOPC – START8E – START/STOPC – EMERG RUNA – EMERG RUNC – STOPC – EMERG RUN6981ED243-16981ED243-46981ED243-56981ED243-61 For Description of Element Identification Codes, see table below.Element Symbol IdentificationPushbuttonsA - 2ND Contact PushbuttonB - 2NC Contact PushbuttonC - 1 NO-l NC Contact PushbuttonIndicating Lights 2D - 11OV, 60 Hz Indicating LightE - 440V, 60 Hz Indicating LightF - 24V DC Indicating LightG - 10V DC Indicating LightH - 48V DC Indicating Light2 Requires Suffix Number to designate lens color. Example: D1-110V, 60 Hz indicating light with red lens.Indicating Lights Lens Color(Suffix Number to Base Light)1 - Red Lens2 - Green Lens3 - Amber Lens4 - Blue Lens5 - White Lens80Motor Control and Operator Interface


Type 6981“Emergency Stop” Pushbutton StationsSpecifications• MIL-SPEC..........................MIL-DTL-2212• Enclosure.........................Watertight or Explosion-Proof• Duty..................................Continuous• Operation.........................Manual• Ambient temp..................50°C• Insulation.........................Class BRatingsInductiveRatingMakeBreakMaximum AmperesAC 60 HzDC110V 220V 440V 115V 230V 355V606505505220.750.750.50.5When ordering specify• Complete catalog numberApproximate Dimensions in Inches and Weight -WatertightApproximate Dimensions in Inches and Weight -Explosion-Proof<strong>Catalog</strong> number Pushbutton Contacts <strong>Catalog</strong> number Pushbutton ContactsWatertight Enclosure Explosion-Proof Enclosure 26981ED236-16981ED236-26981ED236-36981ED236-4NM 16981ED236-5NM 16981ED236-6NM 11 Non-magnetic construction.2NO2NC1NO-1NC2NO2NC1NO-1NC6981ED239-16981ED239-26981ED239-32NO2NC1NO-1NC2 Class 1, Group D, unless specifically defined otherwise.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com81


Type 6982-T5Flush Mounting Drum Type Transfer or Selector SwitchWhen ordering specify• Type number – 6982-T5• Voltage, AC or DC• Number of fingers and circuit arrangements• Number of positions• Self-centering or no-self-centering• Legend required• ApplicationPricesDescriptionType of Enclosure4 Finger (Max.) – Flush Mounting2-, 3-, 4- or 5-Position Open7 Finger (Max.) – Flush Mounting2-, 3-, 4- or 5-Position OpenApproximate Dimensions in InchesSpecifications• MIL-SPEC.................MIL-DTL-2212• Enclosure................Open types for watertight mounting• Operation................Manual, self-centering and non-selfcenteringtypes• Type.........................6982-T5 – 2-, 3-, 4- or 5- position,including OFF position• Function..................Pilot circuit transfer or selector switch• Duty.........................Continuous• Ambient temp.........50°C• Insulation................Class BRatings – Pilot Circuits OnlyMaximum AmperesInductiveAC 60 HzDCRating110V 220V 440V 115V 230V 250V 1MakeBreakCarry (cont.)4041525215121151 Nominal submarine voltage (355V maximum)21.51520.751520.215Contact Arrangement 2 3Open TypeDimensions in InchesType Wide High Deep MountingWeightLbs.A B C D E4 Finger 2.5 2.875 5.19 1.06 1.06 0.757 Finger 2.5 2.875 6.875 1.06 1.06 1.52 A 10 Finger long device is shown to display capability. The maximumlength available in a flush mount is 7 Fingers.3 Diagram for 5-position reversing selector switch showing typicalcontact segment combinations which are available.4 Fingers Long – Total 8 fingers (maximum). Can be supplied 2-, 3-,4- or 5-position. Spring return can be supplied but unit is limited to 3Fingers maximum length.7 Fingers Long – Total 14 fingers (maximum). Can be supplied2-, 3-, 4- or 5-position. Spring return can be supplied but unit is limitedof 6 Fingers maximum length.82Motor Control and Operator Interface


Type 6982-T5Drum Type Transfer or Selector SwitchSpecifications• MIL-SPEC.................MIL-DTL-2212• Enclosure................Watertight or dripproof• Operation................Manual, self-centering and non-selfcenteringtypes• Type.........................6982-T5 – 2-, 3-, 4- or 5-position,including OFF position• Function..................Pilot circuit transfer or selector switch• Duty.........................Continuous• Ambient temp.........50°C• Insulation................Class BWhen ordering specify• Type number – 6982-T5• Voltage, AC or DC• Number of fingers and circuit arrangements• Number of positions• Self-centering or non-self-centering• Type of enclosure• Application and legends required• Type of handle (counterbalanced lever, round knob orteardrop knob)• Bulkhead or surface mountingRatings – Pilot Circuits OnlyMaximum AmperesInductiveAC 60 HzDCRating110V 440V 115V 230V 250V 1MakeBreakCarry (cont.)404151 Nominal submarine voltage (355V maximum)Contact Arrangement 21211521.51520.751520.2152 Diagram for 5-position reversing selector switch showing typicalcontact segment combinations which are available.7 Fingers Long – Total 14 fingers (maximum). Can besupplied 2-, 3-, 4- or 5-position. Spring return can be suppliedbut unit is limited to 6 Fingers maximum length.10 Fingers Long – Total 20 fingers (maximum). Can besupplied 2-, 3-, 4- or 5-position. Spring return can be suppliedbut unit is limited to 9 Fingers maximum length.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com83


Type 6982-T5Drum Type Transfer or Selector SwitchMaster Transfer Switches – Types T8 and T5TypeCam Type Masters 16982T8Optional Features – Cam TypeDescriptionSurface or Pedestal MountingTwo-Speed ReversingON/OFF or ON/OFF/EMERG. RUN Selector SwitchDrum Type Pilot Circuit Transfer SwitchesType ofEnclosureWatertight6982T5 2-, 3-, 4-, or 5-position – 7 fingers maximum Dripproof6982T5 2-, 3-, 4-, or 5-position – 10 fingers maximum Dripproof6982T5 2-, 3-, 4-, or 5-position – 7 fingers maximum Watertight1 Non-closing on Hi-shockApproximate Dimensions in Inches and Weights —Watertight Type T5Approximate Dimensions in Inches and Weights —Dripproof Type T5Dimensions in InchesWeightType Wide High Deep MountingLbs.A B C D E7 Finger 5 4.8 9.12 4.25 5.5 17.5Dimensions in InchesWeightType Wide High Deep MountingLbs.A B C D E7 Finger 2.38 3.25 8.13 1.75 5.88 1.510 Finger 2.38 3.25 9.88 1.75 7.88 2.2584Motor Control and Operator Interface


Type 6982-T8Cam Type Master SwitchSpecifications• MIL-SPEC.................MIL-DTL-2212Master switch contacts are non-closingon Class HI-Shock. Contacts maymomentarily bounce open on Class HI-Shock.• Enclosure................Watertight• Operation................Manual, self-centering and non-selfcenteringtypes• Location..................Remote• Type.........................2-speed reversing (6 circuits)• Duty.........................Continuous• Ambient temp.........50°C• Insulation................Class BWhen ordering specify• Type number – 6982-T8• Voltage, AC or DC• Circuit arrangement• Self-centering or non-self-centering• Applications and legends• Non-plugging or counterbalanced leverApproximate Dimensions in Inches and WeightsRatings – Pilot Circuits OnlyInductiveMaximum AmperesRatingAC 60 HzDC110V 440V 115V 230VMake 40 10 3 1.5Break 10 2.5 3 1.5Carry (cont.) 10 10 10 10When Ordering Renewal Parts –For a master switch in service, be sure to give nameplate dataand description of parts required.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com85


Type 6982-T9Pedestal Mounted Cam Type Master SwitchWhen ordering specify• Type number – 6982-T9• Voltage, AC or DC• Circuit Arrangement• Application and legends• Non-plugging or counterbalanced leverWhen Ordering Renewal Parts –For a master switch in service, be sure to give nameplate dataand description of parts required.Specifications• MIL-SPEC.................MIL-DTL-2212Master switch contacts are non-closingon Class HI-Shock. Contact maymomentarily bounce open onClass HI-Shock.• Enclosure................Watertight• Operation................Manual, self-centering and non-selfcenteringtypes• Location..................Remote• Type.........................Cam Type – 5 positions each direction• Duty.........................Continuous• Ambient temp.........50°CApproximate Dimensions in Inches and WeightRatings – Pilot Circuits OnlyMaximum AmperesInductiveRatingAC 60 HzDC110V 440V 115V 230VMake 40 10 3 1.5Break 10 2.5 3 1.5Carry (cont.) 10 10 10 1086Motor Control and Operator Interface


Type 6984NLSnap Action Limit SwitchesCounterbalanced Roller LeverAdjustable Roller LeverSpecifications• MIL-SPEC.................MIL-DTL-2212• Enclosure................Watertight, zinc alloy die casting withcorrosion resistant finish• Type.........................Snap action precision type, single-poledouble-throw (NO-NC), or double-polesingle-throw (2NO-2NC)• Operation................5 types of operating heads available; inaddition to four-position, 90° operatinghead rotation, all rotary lever type limitswitches offer 360° lever adjustability.Spring return to normal.• Duty.........................Continuous• Ambient temp.........50°C• Insulation................Navy molding material, removable ascomplete unit• Weight.....................1.25 Lbs.Adjustable Rod ActuatorTop Pushbutton RollerWhen ordering specify• <strong>Catalog</strong> number• Voltage• Type of operating head• For roller lever, adjustable lever or adjustable rod, specify ifbypass is required in either direction of operation.Ratings – Pilot Duty AC or DCContactsCurrentACDCAmperes 110V 440V 115V 230V 355VNO-NCMax. Inrush 40 10 - - -Max. Continuous 15 6 0.5 0.2 0.12NO or Max. Inrush 17 4.5 - - -2NC Max. Continuous 3 0.75 0.1 0.05 -Type NlDescription 1NO-1NC 3 2NO 2NCType of Operator Function Cat. No. Cat. No. Cat. No.Pushbutton 6984H42A 6984H79A 6984H80APush Roller 6984H43A 6984H81A 6984H82AAdjustable Rod Lever 6984H50A 6984H95A 6984H98AAdjustable Roller Lever 6984H47A 6984H89A 6984H92A1.5” Counterbalance Roller Lever 2 6984H53A 1 6984H83A 6984H86AAdjustable Rod Lever 6984H51A 6984H96A 6984H99AAdjustable Roller Lever 6984H48A 6984H90A 6984H93A1.5” Counterbalance Roller Lever 2 6984H54A 1 6984H84A 6984H87AAdjustable Rod Lever 6984H52A 6984H97A 6984H100AAdjustable Roller Lever 6984H49A 6984H91A 6984H94A1.5” Counterbalance Roller Lever 3 6984H55A 1 6984H85A 6984H88A1 These switches are electrically “HI-Shock.” All others are mechanical “HI-Shock” only.2 Switch with 2.5” counterbalance roller lever is available. Information and price based on application.3 Must be same polarity4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com87


Type 6984NLSnap Action Limit SwitchesApproximate Dimensions in Inches and Operating DataWithout Operating HeadAdjustable Rod ActuatorTravel to Close Contacts................................................10°Pounds Force to Trip @ 1.5” Radius.............................2Total Travel......................................................................50°Travel to Reset from Trip Point......................................4°Travel to Close Contacts................................................10°Pounds Force to Trip @ 1.5” Radius.............................2Total Travel......................................................................50°Travel to Reset from Trip Point......................................4°Counterbalanced Roller LeverTop PushbuttonTravel to Close Contacts................................................10°Pounds Force to Trip @ 1.5” Radius.............................2Total Travel......................................................................50°Travel to Reset from Trip Point......................................4°Travel to Close Contacts................................................0.05”Pounds Force to Trip Contacts......................................4.0Total Travel......................................................................0.28”Travel to Reset................................................................0.02”Adjustable Roller LeverTop Push RollerTravel to Close Contacts................................................10°Pounds Force to Trip @ 1.5” Radius.............................2Total Travel......................................................................50°Travel to Reset from Trip Point......................................4°Travel to Close Contacts................................................0.04”Pounds Force to Trip Contacts......................................4.0Total Travel......................................................................0.28”Travel to Reset................................................................0.02”88Motor Control and Operator Interface


Type 6984NL X–WExplosion–Proof /Watertight Limit SwitchesSpecifications• MIL-SPEC.................MIL-DTL-2212• Enclosure................Watertight (hose test) and explosionproof. Completely corrosion-proofswitch. All metallic external parts aresilicon bronze.• Type.........................Snap action precision type:NO-NC, 2NO or 2 NC• Operation................Top pushbutton, top push roller androller lever types available. In additionto four-position, 90° operating head rotation,all rotary lever type limit switchesoffer 360° lever adjustability. Springreturn to normal.• Duty.........................Continuous• Ambient temp.........50°CRatings – Pilot Duty AC or DCContactsCurrent ACDCAmperes 110V 440V 115V 230V 355VMax. Inrush 40 10 - - -NO-NC Max.Continuous15 6 0.5 0.2 0.1Max. Inrush 17 4.5 - - -2NO or2NCMax.3 0.75 0.1 0.05 -ContinuousWhen ordering specify• <strong>Catalog</strong> numberType NLXW Silicon Bronze Limit SwitchesContactsNO-NC 42NO2NCRotation-CW and CCWCCWCW-CW and CCWCCWCW-CW and CCWCCWCWTop Pushbutton6984ED64-21---6984ED64-22---6984ED64-23---Operator Type 2 – <strong>Catalog</strong> number1.5” CounterbalancedTop RollerRoller Lever6984ED64-24---6984ED64-25---6984ED64-26----6984ED64-27 36984ED64-28 36984ED64-29 3-6984ED64-306984ED64-316984ED64-32-6984ED64-336984ED64-346984ED64-352.5” CounterbalancedRoller Lever-6984ED64-36 36984ED64-40 36984ED64-41 3-6984ED64-37---6984ED64-38--WeightLbs.6.256.256.251 Class I, Group D, unless specifically defined otherwise.2 For dimensions and operating characteristics, see dimension drawings on Page 86.3 Only these switches are electrically and mechanically “HI-Shock.” All others are mechanically “HI-Shock” only.4 Both contacts must be the same polarity.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com89


Type 6984NLX-WExplosion-Proof 1 / Watertight Limit SwitchesSilicon BronzeApproximate Dimensions in Inches and Operating DataSilicon Bronze Limit Switch without Operating Head1.5” Counterbalanced Roller Lever with Nylon Roller2.5” Counterbalanced Lever with Nylon RollerTravel to Trip...................................................................10°Pounds Force to Trip @ 1.5” Radius.............................2Total Travel......................................................................50°Travel to Reset................................................................4°Travel to Trip...................................................................10°Pounds Force to Trip @ 2.5” Radius.............................1.2Total Travel......................................................................50°Travel to Reset................................................................4°Top Push RollerTop PushbuttonTravel to Close Contacts (maximum)............................0.05”Pounds Force to Trip Contacts......................................5.75Total Travel (minimum)...................................................0.27”Travel to Reset (maximum)............................................0.05”Travel to Close Contacts (maximum)............................0.05”Pounds Force to Trip Contacts......................................5.75Total Travel (minimum)...................................................0.27”Travel to Reset (maximum)............................................0.05”1 Class I, Group D, unless Specifically defined otherwise. NOTE: Dimensions are approximate and are not to be used for construction.90Motor Control and Operator Interface


Type 6984-T11 and T12Snap Action Limit SwitchType T11 – Watertight with 3.5 InchLever and Large Nylon RollerWhen ordering specify• <strong>Catalog</strong> number• Voltage• Type of operating head• For roller lever type operator, specify if bypass is required ineither direction of operation.Arrangement of ContactsType T11Single-Pole, Double-Throw Switch — Normal PositionSpecifications• MIL-SPEC.................MIL-DTL-2212• Enclosure................Watertight or explosion-proof 1 .• Type.........................Snap action limit switchC-H Type T11 -Single-Pole, Double-ThrowC-H Type T12 -Double-Pole, Double-Throw• Operation................Three types of operating head available:Roller lever operatorPush roller operatorPushbutton operatorSpring return to normal position• Duty.........................Continuous• Ambient temp.........50°C• Insulation................Class BNormally open and normally closed contacts should be on the same side ofthe line.Type T12Double-Pole, Double-Throw Switch — Normal PositionRatings – Pilot Circuits OnlyMaximum AmperesInductiveAC 60 HertzDCRating110V 220V 440V 115V 230V 250V 2Make 60 30 20 10 10 10Break 6 3 1.5 2.2 1.1 0.5Carry(Cont.)10 10 10 10 10 101 Class I, Group D, unless specifically defined otherwise.2 Nominal submarine voltage (355V maximum).The poles can be used on opposite sides of the line. Normally open andnormally closed contacts on each pole must be on the same side of the line.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com91


Type 6984-T11 and T12Snap Action Limit SwitchTypes T11 and T12 – Watertight or Explosion Proof 1Description Type T11 – 1NO-1NC Type T12 – 2NO-2NCType of OperatorFunctionWatertight Explosion-Proof 1 Watertight Explosion-Proof 1<strong>Catalog</strong> number <strong>Catalog</strong> number <strong>Catalog</strong> number <strong>Catalog</strong> numberPushbutton 6984H5C 6984H21B 6984ED89-1 6984ED86-1Push Roller 6984H6C 6984H22B 6984ED89-2 6984ED86-21.19” Long Roller Lever, Steel Roller 6984ED5-2 6984ED39-2 6984ED92-1 -2.5” Long Roller Lever, Steel Roller 6984H27A 6984ED64-36 6984ED90-1 6984ED87-13.5” Long Roller Lever, Nylon Roller 2 6984H36A 6984H33A 6984ED91-1 6984ED88-11.19” Long Roller Lever, Steel Roller 6984ED6-2 6984ED39 6984ED92-2 -2.5” Long Roller Lever, Steel Roller 6984H28A 6984H25A 6984E90-2 6984ED87-33.5” Long Roller Lever, Nylon Roller 2 6984H37A 6984H34A 6984ED91-2 6984ED88-21.19” Long Roller Lever, Steel Roller 6984ED7 - 6984ED92-3 -2.5” Long Roller Lever, Steel Roller 6984H29A 6984H26A 6984ED90-3 6984ED87-43.5” Long Roller Lever, Nylon Roller 2 6984H38A 6984H35A 6984ED91-3 6984ED88-31 Class I, Group D, unless specifically defined otherwise.2 Nylon roller is 1.5” diameter.92Motor Control and Operator Interface


Type 6984-T11 and T12Snap Action Limit SwitchesApproximate Dimensions in Inches and Weights – Watertight EnclosuresSnap Action Limit Switch withSnap Action Limit Switch with Roller Lever Operator,Pushbutton OperatorClockwise and Counterclockwise TripTypeT11-Single-Pole,Double ThrowT12 – Double-Pole,Double ThrowDimensions inInchesA B C7.91 6.13 5.2511.039.258.38WeightLbs.45TypeT11-Single-Pole, Double ThrowT12 – Double-Pole, Double ThrowDimensions in InchesA B C811.256.139.255.258.38WeightLbs.45Snap Action Limit Switch with PushRoller OperatorSnap Action Limit Switch with Roller Lever Operator, Clockwise Trip andCounterclockwise Bypass - or Counterclockwise Trip and CLockwise BypassTypeT11-Single-Pole,Double ThrowT12 – Double-Pole,Double ThrowDimensions inInchesA B C8.03 6.13 5.2511.169.258.38WeightLbs.45TypeT11-Single-Pole, Double ThrowT12 – Double-Pole, Double Throw1 Nylon Roller is 1.5” diameter.Dimensions in Inches 1A B C8.0611.196.139.255.258.38WeightLbs.454265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com93


Type 6984-T11 and T12Snap Action Limit SwitchApproximate Dimensions in Inches and Weights – Explosion-Proof Enclosures 1 (Cast Brass)Snap Action Limit Switch with Pushbutton OperatorSnap Action Limit Switch with Push Roller OperatorTypeDimensions in InchesA B CWeightLbs.TypeDimensions in InchesA B CWeightLbs.T11-Single-Pole, Double ThrowT12 – Double-Pole, Double Throw8.3811.56.389.55.388.51420T11-Single-Pole, Double ThrowT12 – Double-Pole, Double Throw8.511.636.389.55.388.51420Snap Action Limit Switch with Roller Lever OperatorTypeT11-Single-Pole, Double ThrowT12 – Double-Pole, Double ThrowDimensions in Inches 2A B C911.696.389.55.388.5WeightLbs.14201 Class I, Group D, unless specifically defined otherwise.2 Nylon roller is 1.5” diameter.94Motor Control and Operator Interface


Type 6984Geared Type Limit SwitchSpecifications• MIL-SPEC........................MIL-DTL-2212Contact may open or closemomentarily on Class HI-Shock• Enclosure.......................Watertight – brass case and cover• Type................................Geared Type, 2 contact or 4 contact• Operation.......................Shaft driven, tripping points areadjustable between ½ and 100turns of operating shaft inincrements of 1/20th of a shaftturn. For shaft speeds of 600 rpm(max.), 10 rpm (min.)• Duty................................Continuous• Ambient temp................50°C• Insulation.......................Class BWhen ordering specify• Type number• Voltage• 2 contact or 4 contact• Shaft speed• SettingsOperationGeared Limit Switch - WatertightDescriptionRotating Shaft – 2 Contact (A&B)Rotating Shaft – 4 Contact (A-D)<strong>Catalog</strong> No.6984H133A-NM6984ED84NMApproximate Dimensions in Inches and WeightsAll contacts are closed between limits, the switch constructionis such that contact “A” and “D” are normally open beforethey are mounted in the switch, and contacts “B” and “C” arenormally closed before mounting in switch.Contacts “A” and “C” are opened by clockwise rotation of theadjuster, and clockwise rotation of the shaft. Contact “A” and“C” are set by driving the machine to its end of travel in thedirection that turns the adjuster clockwise, and then openingthe contacts with the adjuster.Contacts “B” and “D” are opened by counterclockwise rotationof the adjuster, and the counterclockwise rotation of theshaft. Contacts “B” and “D” are set by driving the machine toits end of travel in the direction that turns the adjuster counterclockwise,and then opening the contacts with the adjuster.One turn of the adjuster corresponds to 1-1/3 turns of themain shaft.4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com95


Type 6991Overtemperature MonitorWhen ordering specify• <strong>Catalog</strong> number of Overtemperature Monitor• Resistance value of installed thermistorsType 6991 Overtemperature MonitorDescriptionOvertemperature Monitor<strong>Catalog</strong> No.6991ED25GeneralThe Overtemperature Monitor measures the individual resistanceof up to three thermistors which are attached to orimbedded in the motor windings. When one or more of thethermistors reaches its trip temperature (a resistance of 450ohms), a control circuit relay (not supplied) is de-energized.The contacts of the control relay (not supplied) are wired inseries with the motor starter magnet coil and drop out thestarter when the relay opens. This disconnects the motorfrom the line.The Overtemperature Monitor is “failsafe” in that the controlrelay coil will be de-energized if any of the thermistors opencircuit or short out.Specifications• MIL-SPEC........................MIL-E-917 and MIL-S-901• Duty................................Continuous• Ambient temp ...............50°C• Rating.............................110V AC pilot dutyThree thermistors with the following characteristicsare required:• Type................................Negative Temperature Coefficient• Max. resistance.............4000 ohms at 20°C• “Trip” resistance 450 ohms at desired “Trip”temperatureNEMA Insulation ClassesMotor Insulation ClassABFHTrip Temperatures100° C130° C155° C180° CApproximate Dimensions in Inches and Weights<strong>Catalog</strong> No. 6991ED25 supersedes and is interchangeablewith Overtemperature Monitor <strong>Catalog</strong> No. 6999ED207C2.96Motor Control and Operator Interface


Type 6999Overspeed Trip DriveWhen ordering specify• <strong>Catalog</strong> numberType 6999 Overspeed Trip DeviceTachometerDescriptionVoltageOverspeed Trip Device 0 - 40V0 - 60V<strong>Catalog</strong> number6999ED203A46999ED203A5GeneralThe Overspeed Trip Device is designed to preventoverspeeding on DC driven M-G sets, centrifugal pumps, etc.,by measuring tachometer voltage of the driven machineand stopping the motor at a predetermined voltage.Stopping is accomplished by de-energizing the coil of a DCcontrol relay (not included), which then opens the main motorcontroller contactor.Specifications• MIL-SPEC........................MIL-E-917 and MIL-S-901• Duty ...............................Continuous• Ambient temp................50°C• Repair parts...................Complete unit is supplied• Ratings...........................Tachometer input 0-40V or 0-60VAC. Maximum voltage on terminals1 through 6, 100V DC. Maximumapplication voltage with controlrelay, 250V DC nominal(180V - 355V submarine)Typical Wiring DiagramApproximate Dimensions in Inches and Weights4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com97


Navy Control Circuit WiringTerminal Boards / Fuse BlocksTerminal BoardsWhen ordering specify• <strong>Catalog</strong> numberSpecifications• MIL-SPEC........................MIL-DTL-2212• Ratings...........................440V AC, 30A continuousTerminal BoardsApproximate Dimensions in InchesTie PointsDimensions In InchesABPart Number48123.255.758.252.885.387.8880-958-480-958-580-958-6Fuse BlocksWhen ordering specify• <strong>Catalog</strong> numberTerminal BoardsFuse TypePart NumberF60 (MIL-F-15160/60) 44-1804AF61 (MIL-F-15160/61) 44-647-5Specifications• MIL-SPEC........................MIL-DTL-2212• Maximum Ratings.........500V AC, 30A continuousApproximate Dimensions in Inches98Motor Control and Operator Interface


Navy Power Terminal Blocks100, 150 and 300 AmperesWhen ordering specify• <strong>Catalog</strong> numberPower Terminal BlocksAmpere Rating Tie Points Part Number10010015015030030024242381-771281-7712-281-7712-581-7712-681-7712-381-7712-4Specifications• MIL-SPEC........................MIL-DTL-2212• Maximum ratings...........600VBasic Block Dimensions in InchesTerminal Arrangements, Approximate Dimensions in Inches4265 N. 30th Street, Milwaukee, WI 53216 | Phone 1.800.552.2829 | Fax 414.875.4764 | Email IMS-BD@drs.com99


POWER SOLUTIONSThe Solution Leader - 100W - 200kW<strong>DRS</strong> Power Solutions is a proven leader in the design, development andmanufacturer of high reliability power generation and power conversion equipmentfrom 100W to 200kW. Our combined capabilities blend the respected abilities of<strong>DRS</strong> Pivotal Power, <strong>DRS</strong> Fermont and <strong>DRS</strong> Universal Power <strong>Systems</strong>, providing anunmatched customer relationship commitment to fully understanding and providingyour power requirements.With over two decades of customer satisfaction and success, <strong>DRS</strong> PowerSolutions delivers products to Navy operations world-wide, consistently exceedingexpectations and bolstering our reputation for high reliability in power conversionequipment including UPS systems, rectifiers, vehicle starters, battery chargers andfrequency converters. Units are available with hard mounting for bulkhead or deck,hard-mounted or isolated rack mounting, single- or three-phase ship power inputand are all full MIL-SPEC qualified. We also offer affordable COTS systems.In-house tests include environmental screening, EMI/EMC confidence and vibration.Engineered Center of Excellence<strong>DRS</strong> Power Solutions has created an “Center of Excellence”, staffed by a dedicatedand experienced engineering team for second-to-none capability and a thoroughunderstanding of maritime needs.


0.8 KW DC UPS841-01Electrical Characteristics440VAC, 3-Phase, 60Hz conformingInput voltageto Type 1 of MIL-STD-1399, Section300 AOutputVoltage nominal28 VDCVoltage regulation ± 2%Power rating800WOverload capacity125% for 1 minuteShort circuit current200% rated load current for1 secondMaximum transient voltage for 50%load step10%Maximum transient voltage recoverytime for 50% load step100 msRipple and noise200 mV p-pEfficiency at rated load80% minimumRemote signal communications Multiple options availableBattery charging time6 hours for 40% capacity to 80%capacityGeneral<strong>DRS</strong> Pivotal Power’s Uninterruptible Power Supply (UPS)systems are intended for use on board naval combat shipsto power critical command, control, communications andnavigation equipment.Features• Mean Time Between Failures (MTBF) – 40,000 hours• Isolation switches for input, output and battery• SNMP communications and control options• Draw-out sub-assemblies and printed wiring boards• Built-In Test (BIT) capability• On-line maintenance of batteries and battery charger• 841-01 offers 30 minutes of backup** Battery enclosures are sold separatelyMean time between failures (MTBF)Mean time to repairMaximum time to repairReliability and Maintainability40,000 hours20 minutes45 minutesPhysical Characteristics(Please refer to the power unit interface controldrawing for detailed dimensions)Enclosure protectionDrip proof protected as perMIL-STD-108E (45°)Cooling methodForced airApproximate Dimensions / Mounting Bulkhead RackWidth (mm / inches) 513 / 20.5 483 / 19.3Depth (mm / inches) 231 / 9.1 725 / 28.6Height (mm / inches) 640 / 25.2 222 / 8.9 (5U)Weight (kg / pounds) 47 / 114 47 / 114Pivotal PowerEnvironmental CharacteristicsOperating temperature 0°C to 50°C / 32°F to 122°FStorage temperatureElectromagnetic compatibility /Electromagnetic interferenceVibrationShockAirborne noise-40°C to +70°C / -40°F to +158°FMIL-STD-461D, CE101, CE102,CS101, CS114, CS116, RE101,RE102, RS101, RS103MIL-STD-167/1, Type I, 4-33HzMIL-S-901D, Grade A, Class IMIL-STD-740-1, Class A12Updated list prices and PDF version of this catalog are available at <strong>DRS</strong>.com. 101


2.4 KW DC UPS843-01General<strong>DRS</strong> Pivotal Power’s Uninterruptible Power Supply (UPS)systems are intended for use on board naval combat shipsto power critical command, control, communications andnavigation equipment.Features• Mean Time Between Failures (MTBF) – 40,000 hours• Isolation switches for input, output and battery• SNMP communications and control options• Draw-out sub-assemblies and printed wiring boards• Built-In Test (BIT) capability• On-line maintenance of batteries and battery charger• Key system LED status indicators, LCD status display• 843-01 offers 30 minutes of backup** Battery enclosures are sold separatelyPivotal PowerElectrical Characteristics440VAC, 3-Phase, 60Hz conformingInput voltageto Type 1 of MIL-STD-1399, Section300 AOutputVoltage nominal28 VDCVoltage regulation ± 2%Power rating2.4 kWOverload capacity125% for 1 minuteShort circuit current200% rated load current for 1secondMaximum transient voltage for 50%load step10%Maximum transient voltage recoverytime for 50% load step100msRipple and noise200 mV p-pEfficiency at rated load80% minimumRemote signal communications Multiple options availableBattery charging time6 hours for 40% capacity to 80%capacityReliability and MaintainabilityMean time between failures (MTBF) 40,000 hoursMean time to repair20 minutesMaximum time to repair45 minutesPhysical Characteristics(Please refer to the power unit interface controldrawing for detailed dimensions)Enclosure protectionDrip proof protected as perMIL-STD-108E (45°)Cooling methodForced airApproximate Dimensions / Mounting Bulkhead RackWidth (mm / inches) 513 / 20.5 483 / 19.3Depth (mm / inches) 260 / 10.2 725 / 28.6Height (mm / inches) 710 / 28.0 262 / 10.3 (6U)Weight (kg / pounds) 74 / 163 74 / 163Environmental CharacteristicsOperating temperature 0°C to 50°C / 32°F to 122°FStorage temperatureElectromagnetic compatibility /Electromagnetic interferenceVibrationShockAirborne noise-40°C to +70°C / -40°F to +158°FMIL-STD-461D, CE101, CE102,CS101, CS114, CS116, RE101,RE102, RS101, RS103MIL-STD-167/1, Type I, 4-33HzMIL-S-901D, Grade A, Class IMIL-STD-740-1, Class A12102Power Solutions


1.0 KW DC Rectifier841-01-14General<strong>DRS</strong> Pivotal Power’s Rectifier systems are intended for useon board naval combat ships to provide regulated power tocritical command, control, communications and navigationequipment.Features• Mean Time Between Failures (MTBF) – 40,000 hours• Isolation switches for input and output• SNMP communications and control options• Draw-out sub-assemblies and printed wiring boards• Built-In Test (BIT) capability• Available with Manually Adjustable Output Voltage and LineLoss Compensation Option (per MIL-P-15736)• Also available in 2.4 KW Power LevelElectrical Characteristics440VAC, 3-Phase, 60Hz conformingInput voltageto Type 1 of MIL-STD-1399, Section300 AOutputVoltage nominal28 VDCVoltage regulation ± 2%Power rating800WOverload current, 125%44 A, shutdown in 80 sec.Short circuit current80 A, shutdown in 2.5 sec.Ripple and noise200 mV p-pEfficiency at rated load80% minimumRemote signal communications Multiple options availableEnvironmental CharacteristicsOperating temperature 0°C to 50°C / 32°F to 122°FMean time between failures (MTBF)Mean time to repairMaximum time to repairReliability and Maintainability40,000 hours20 minutes45 minutesPhysical Characteristics(Please refer to the power unit interface controldrawing for detailed dimensions)Enclosure protectionDrip proof protected as perMIL-STD-108E (45°)Cooling methodForced airApproximate Dimensions / Mounting Bulkhead RackWidth (mm / inches) 513 / 20.5 483 / 19.3Depth (mm / inches) 231 / 9.1 725 / 28.6Height (mm / inches) 640 / 25.2 222 / 8.9 (5U)Weight (kg / pounds) 47 / 114 43 / 95Storage temperatureElectromagnetic compatibility /Electromagnetic interferenceVibrationShockAirborne noise-40°C to +70°C / -40°F to +158°FMIL-STD-461D, CE101, CE102,CS101, CS114, CS116, RE101,RE102, RS101, RS103MIL-STD-167/1, Type I, 4-33HzMIL-S-901D, Grade A, Class IMIL-STD-740-1, Class A12150 Bluewater Rd., Bedford, NS B4B 1G9 | Phone 902.835.7268 | Fax 902.835.6026 | Email info@pivotalpower.com103


2 KVA AC UPSInput voltage832-01AElectrical Characteristics440VAC, 3-Phase, 60Hzconforming to Type 1 ofMIL-STD-1399, Section 300 AOutputVoltage115 VACFrequency60 HzNumber of phases 1Voltage regulation ± 2 %Frequency regulation ± 0.5 %Power rating2 kVAOverload capacity125% for 1 minuteShort circuit current200% rated load current for 1secondMaximum transient voltagefor 50% load step10%Maximum transient voltagerecovery time for 50% load step100 msLinear load < 3 %Nonlinear load < 5 %Maximum deviation factor forlinear load1 %Current crest factor capacity 2.5Efficiency at rated load80% minimumRemote signalcommunicationsMultiple options availableBattery charging time6 hours for 40% capacity to 80%capacityGeneral<strong>DRS</strong> Pivotal Power’s Uninterruptible Power Supply (UPS)systems are intended for use on board naval combat shipsto power critical command, control, communications andnavigation equipment.Features• Mean Time Between Failures (MTBF) – 40,000 hours• Isolation switches for input, output and battery• SNMP communications and control options• Draw-out sub-assemblies and printed wiring boards• Built-In Test (BIT) capability• On-line maintenance of batteries and battery charger• Key system LED status indicators, LCD status display• 832-01A offers 30 Minutes of battery back up* Battery enclosures are sold separatelyEnvironmental CharacteristicsOperating temperature 0°C to 50°C / 32°F to 122°FStorage temperature-40°C to +70°C / -40°F to +158°FElectromagnetic compatibility /Electromagnetic interferenceVibrationShockAirborne noiseReliability and MaintainabilityMean time between failures (MTBF) 40,000 hoursMean time to repair20 minutesMaximum time to repair45 minutesMIL-STD-461D, CE101, CE102,CS101, CS114, CS116, RE101,RE102, RS101, RS103MIL-STD-167/1, Type I, 4-33HzMIL-S-901D, Grade A, Class IMIL-STD-740-1, Class A12Physical Characteristics (Please refer to the power unit interfacecontrol drawing for detailed dimensions)Enclosure protectionDrip proof protected as perMIL-STD-108E (45°)Cooling methodForced airApproximate Dimensions / Mounting Bulkhead RackWidth (mm / inches) 445 / 17.8 483 / 19.3Depth (mm / inches) 262 / 10.5 725 / 28.6Height (mm / inches) 715 / 28.6 222 / 8.9 (5U)Weight (kg / pounds) 81 / 178 81 / 178104Power Solutions


3 KVA AC UPSGeneral<strong>DRS</strong> Pivotal Power’s Uninterruptible Power Supply (UPS)systems are intended for use on board naval combat shipsto power critical command, control, communications andnavigation equipment.833-01AFeatures• Mean Time Between Failures (MTBF) – 40,000 hours• Isolation switches for input, output and battery• SNMP communications and control options• Draw-out sub-assemblies and printed wiring boards• Built-In Test (BIT) capability• On-line maintenance of batteries and battery charger• Key system LED status indicators, LCD status display• 833-01 offers 10 or 30 minutes of backup** Battery enclosures are sold separatelyElectrical Characteristics440VAC, 3-Phase, 60Hz conformingInput voltageto Type 1 of MIL-STD-1399, Section300 AOutputVoltage115 VACFrequency60 HzNumber of phases 1Voltage regulation ± 2 %Frequency regulation ± 0.5 %Power rating3 kVAOverload capacity125% for 1 minuteShort circuit current200% rated load current for 1secondMaximum transient voltage for 50%load step10%Maximum transient voltage recoverytime for 50% load step100msLinear load < 3 %Nonlinear load < 5 %Maximum deviation factor for linearload1%Current crest factor capacity 2.5Efficiency at rated load80% minimumRemote signal communications Multiple options availableBattery charging time6 hours for 40% capacity to 80%capacityEnvironmental CharacteristicsOperating temperature 0°C to 50°C / 32°F to 122°FStorage temperature-40°C to +70°C / -40°F to+158°FElectromagnetic compatibility /Electromagnetic interferenceVibrationShockAirborne noiseReliability and MaintainabilityMean time between failures (MTBF) 40,000 hoursMean time to repair20 minutesMaximum time to repair45 minutesMIL-STD-461D, CE101, CE102,CS101, CS114, CS116, RE101,RE102, RS101, RS103MIL-STD-167/1, Type I, 4-33HzMIL-S-901D, Grade A, Class IMIL-STD-740-1, Class A12Physical Characteristics(Please refer to the power unit interface controldrawing for detailed dimensions)Enclosure protectionDrip proof protected as perMIL-STD-108E (45°)Cooling methodForced airApproximate Dimensions / Mounting Bulkhead RackWidth (mm / inches) 513 / 20.5 483 / 19.3Depth (mm / inches) 262 / 10.5 715 / 28.6Height (mm / inches) 715 / 28.6 222 / 8.9 (5U)Weight (kg / pounds) 81 / 178 81 / 178150 Bluewater Rd., Bedford, NS B4B 1G9 | Phone 902.835.7268 | Fax 902.835.6026 | Email info@pivotalpower.com105


6 KVA AC UPSGeneral<strong>DRS</strong> Pivotal Power’s Uninterruptible Power Supply (UPS)systems are intended for use on board naval combat shipsto power critical command, control, communications andnavigation equipment.836-01AFeatures• Mean Time Between Failures (MTBF) – 40,000 hours• Isolation switches for input, output and battery• SNMP communications and control options• Draw-out sub-assemblies and printed wiring boards• Built-In Test (BIT) capability• On-line maintenance of batteries and battery charger• Key system LED status indicators, LCD status display• 836-01 offers 10 or 30 minutes of backup** Battery enclosures are sold separatelyElectrical Characteristics440VAC, 3-Phase, 60Hz conformingInput voltageto Type 1 of MIL-STD-1399, Section300 AOutputVoltage115 VACFrequency60 HzNumber of phases 1Voltage regulation ± 2 %Frequency regulation ± 0.5 %Power rating6 kVAOverload capacity125% for 1 minuteShort circuit current200% rated load current for 1secondMaximum transient voltage for 50%load step10%Maximum transient voltage recoverytime for 50% load step100msLinear load < 3 %Nonlinear load < 5 %Maximum deviation factor for linearload1 %Current crest factor capacity 2.5Efficiency at rated load80% minimumRemote signal communications Multiple options availableBattery charging time6 hours for 40% capacity to 80%capacityEnvironmental CharacteristicsOperating temperature 0°C to 50°C / 32°F to 122°FStorage temperatureElectromagnetic compatibility /Electromagnetic interferenceVibrationShockAirborne noiseReliability and MaintainabilityMean time between failures (MTBF) 40,000 hoursMean time to repair30 minutesMaximum time to repair60 minutes-40°C to +70°C / -40°F to +158°FMIL-STD-461D, CE101, CE102,CS101, CS114, CS116, RE101,RE102, RS101, RS103MIL-STD-167/1, Type I, 4-33HzMIL-S-901D, Grade A, Class IMIL-STD-740-1, Class A12Physical Characteristics(Please refer to the power unit interface controldrawing for detailed dimensions)Enclosure protectionDrip proof protected as perMIL-STD-108E (45°)Cooling methodForced airApproximate Dimensions / Mounting Bulkhead RackWidth (mm / inches) 513 / 20.5 483 / 19.3Depth (mm / inches) 400 / 16.0 710 / 28.4Height (mm / inches) 710 / 28.4 355 / 14.2Weight (kg / pounds) 151 / 332 151 / 332106Power Solutions


Helicopter StarterGeneral<strong>DRS</strong> Pivotal Power’s DC rectifier power supply (RPS) isintended for use on board combat ships. The RPS is capableof providing up to 1000 A short term high starting currents.137-01BFeatures• Mean Time Between Failures (MTBF) – 60,000 hours• Remote sensing capability• Programmable battery charging algorithm• UPS functionality• Two output channels• Use of Insulated Gate Bipolar Transistors (IGBT) aspower switching devices• Parallellable, up to three unitsInput SpecificationsVoltage440 VAC, 3 phase, 3 wire, 60 HzNominal 18 A – Maximum 30 A FullCurrentLoad OutputOutput SpecificationsApplicable standardsMIL-P-15736/1D26 to 32 VDC adjustableLine drop compensated for up toOutput voltage3.5V cable drop with 1000A outputcurrentVoltage regulation ± 2%Rated output current350A1000A for 1 sec750A for 4 secShort-term output current500A for 15 sec350A for 30 sec(Four consecutive cycles repeatablewith 5 minute rest time)Short circuit capacity1100A for 2 secondsRipple and noise2VppEfficiency at rated load 80%Up to 3 units can be paralleled toParallel operationprovide up to 1000A continuousoutput.ElectromagneticInterference/Electromagnetic Compatibility(EMI/EMC)VibrationNoiseShockEnvironmental Qualifications440 VAC, 3 phase, 3 wire, 60 HzAmbient temperatureRelative Humidity Up to 95%ReliabilityMean time between failures (MTBF) 40,000 hoursMean time to repair20 minMaximum time to repair45 minWeightWidthDepthHeightMIL-STD-461D Surface ShipsCE101, CE102, CS101, CS114,CS116, RE101, RE102, RS101,RS103MIL-STD-167/1, Type I, 4-33 HzMIL-STD-740-1, Class A12, Grade BMIL-STD-901D, Grade A, Type A,Class I0 to 50 degrees CelsiusPhysical Characteristics290 kg / 638 lbs565 mm / 22.6 in603 mm / 24.1 in921 mm / 36.8 in150 Bluewater Rd., Bedford, NS B4B 1G9 | Phone 902.835.7268 | Fax 902.835.6026 | Email info@pivotalpower.com107


<strong>DRS</strong> Trusted SeriesEngineered for worldwide deployment and operation, the TR-IV Seriesrackmount UPS system stands alone in providing clean, reliable, isolatedpower to sensitive electronic loads.For conditioned, true on-line regulated sinewave power and unmatchedpower protection, specify the 1500/2000 or 3000TR-IVglobaluninterruptible power supply (UPS) from <strong>DRS</strong> Technologies. Built using<strong>DRS</strong>’ patented Intelligent Voltage Selection circuit combined with amatching isolation transformer, the unit configures and conditions a widerange of power inputs, permitting operationfrom domestic, international, and field generator power sources.Major components of the system include a battery / maintenance bypassmodule with removable battery pack and, included with the 3000TR-IV, aseparate UPS electronics module. Engineered for worldwide deploymentand operation, this rackmount global UPS system stands alone inproviding clean, reliable, isolated power to sensitive electronic loads.Each unit is equipped with a B-Type USB port communications interfacefor remote monitoring, and an auxiliary outlet to support laser printers.Illuminated color indicators provide a reliable display of both operatingand alarm conditions. Front panel touch controls provide alarm silence,manual battery test and standby options.Rugged construction and advanced design makes this global UPS systemideal for any deployable or fixed site application. A front removablebattery pack allows for easy battery replacement and/or an option forreduced transport weight. ADD an optional battery cabinet to provideextended battery backup.Features• Global input power.• True sinewave output• MIL-STD- 167-1• Removable battery pack• Self-contained, ruggedized unit• Input isolation transformer• B-Type USB Port Communications Interface108Power Solutions


<strong>DRS</strong> Trusted SeriesSpecifications 1500TR-IV 2000TR-IV 3000TR-IVInput Voltage Range 92-254 VAC 92-127VAC, 198-254 VACInput Voltage Rating 120 V / 240 V 100/120/220/240 VACInput Current Rating40 - 70 HZ auto-sensinInput Power Factor> 0.95 typicalOutput RatingsUPS 1500 VA/1050W 2000VA / 1400W 3000 VA / 2100 WAUX 1050VA/1050W 1400VA / 1400WCombined 1500VA/1050W 2000VA / 1400WOutput Voltage Settings110/115/120/127 VAC; user selectable, max 5% THD; full non-linear loadOutput Frequency50 / 60 Hz (fixed selectable, or synchronized to inputOutput Overload200% for 2 seconds; 150% for 50 sec (1, 1.5, 2kW) or 10 sec (3kW) w transfer to bypassTransfer time to BatteryNoneReserve Battery Time 7 min at full load 6 minutes at full load 5 mins at full loadRecharge Battery Time3 hours to 90% after full load dischargeBattery Rating 48 VDC 72 VDC / 9 AhBattery Typevalve regulated, non-spillable, lead acidReplacement Time< 5 minAmbient Temperature0 C to 40 C / 32 F to 104 F operating for alt 0-3000m /0 - 10,000ft above sea level;-15 C to 50 C / 5 F to 122 F non-operating.Relative Humidity0 to 95 % non-condensingOperating Altitudefull rating up to 3000m /10,000ft when operated within temperature range specified;15,000m / 50,000ft non-operating.Audible Noise < 50 dB at 1m / 3.3ft; < 63 dB at 1m / 3.3ftDimensions (H x W x D)UPS Module13.3cm x 43.2cm x 53.3cm or5.25in x 17in x 21in13.3cm x 43.2cm x 61cm5.25in x 17in x 24in13.3cm x 43.2cm x 50.8cm5.25in x 17in x 20inBattery Mod n/a n/a 13.3cm x 43.2cm x 50.8cm5.25in x 17in x 20inWeight (kg / lbs)Electronics n/a n/a 12.3kg / 28lbsWith Battery 34.9kg / 77lbs 37kg / 81.5lbs 45.4kg / 100lbsBattery only 11.8kg / 26lbs 11.8kg / 26lbs 17.7kg / 39lbsInput Power Cord 1.8m / 6ft with 5-15P plug 1.8m / 6ft with 5-20Pplug 1.8m / 6ft with L6-30 plugOutput Receptacles (4) 5-15R, (1) 5-15R aux (4) 5-20R, (1) 5-20R aux (1) L5-30R, (2) 5-15/20R,(2) 5-15R aux150 Bluewater Rd., Bedford, NS B4B 1G9 | Phone 902.835.7268 | Fax 902.835.6026 | Email info@pivotalpower.com109


Forklift Battery ChargerGeneral<strong>DRS</strong> Pivotal Power’s Forklift Battery Charger’s high outputpower quality is achieved using state-of-the-art controlalgorithms. The monitoring scheme uses microprocessorbased digital techniques to monitor various circuitscontinuously to detect any impeding faults early, initiate agracious shutdown of the equipment and indicate the faultstatus on the digital display.225-01Features• Mean Time Between Failures (MTBF) – 40,000 hours• Current limit selector switch.• Voltage selector switch• Remote line drop compensation• Reverse battery protection through fuse of circuit• Input circuit breaker• Key system LED status indicators• LCD status displayInput voltageOutputBattery voltagesCurrent rangesVoltage adjustment rangeTemperature compensation of theoutput voltageVoltage regulationRipple and noiseEfficiencyElectrical Characteristics440 VAC nominal, 60 Hz, 3 phaseconforming to MIL-STD-1399,Section 300, Type I24, 36 VDC selectable (12,18 cells)130, 150, 180, 200 A2.2 V – 2.5 V per cell through internalpotentiometerYes± 0.02 Volts per cell2 % Maximum80% minimum at rated loadPhysical Characteristics(Please refer to the power unit interface controldrawing for detailed dimensions)Approximate DimensionsWidth (mm / inches) 674 / 26.9Depth (mm / inches) 520 / 20.8Height (mm / inches) 647 / 25.8Weight ( kgs / pounds) 250 / 550Environmental QualificationsMIL-STD-461DEMC/EMICE101, CE102, CS101, CS114,CS116, RE101, RE102, RS101,RS103VibrationMIL-STD-167/1, Type I, up to 33 HzShock resistanceMIL-S-901D, Class IAirborne noiseMIL-STD-740B, Class BCooling methodNatural convectionOperating temperature0°C to +50°CMean time between failures 40,000 hours110Power Solutions


150 Bluewater Rd., Bedford, NS B4B 1G9 | Phone 902.835.7268 | Fax 902.835.6026 | Email info@pivotalpower.com 111


HEATING, VENTILATION, AIR CONDITIONING AND REFRIGERATION<strong>DRS</strong> Marlo Coil is the leader in custom engineered heating, ventilating, air conditioningand refrigeration (HVAC&R) and is an NQA certified ISO 9001 Registered Company.<strong>DRS</strong> is the U.S. Navy’s largest supplier of heating and cooling coils, air handling units,product coolers and refrigeration plants. Our customer base also includes the MilitarySealift Command, the U.S. Coast Guard and international governments.<strong>DRS</strong> has developed and qualified virtually all U.S. Navy shipboard HVAC&R cooling andheating coils, fan coil units and fan coil assemblies since the 1940s. An unwaveringcommitment to quality, customer service and product flexibility continues to this day.In addition to providing high quality custom engineered equipment for Navy andmarine applications, <strong>DRS</strong> also regularly provides custom engineered equipment forpharmaceuticals, clean rooms, hospitals and other applications requiring quality levelshigher than commercial grade equipment.We design our equipment around your project. At <strong>DRS</strong>, we continue a 7-decaderecord of providing unparalleled design, test, manufacture and support for military,commercial, industrial and critical process HVAC&R applications.


Type S21X-T38XVentilation HeatersGeneralNavy Ventilation Heaters are duct type steam ventilationheaters for use in heating, ventilating and air conditioningsystems aboard ship.Specifications• MIL-SPEC...................................... MIL-H-16235• Qualified products list................. QPL-16235• Shock qualification...................... MIL-S-901• Vibration qualification................. MIL-STD-167When ordering specify• Type I standard construction• Type II 304 stainless steel non-magnetic construction• Size (21-38)• Fin spacing (L/M/H)• Optional welded header box• Hull number for replacement applicationsApproximate Dimensions in Inches and WeightsModelX = L, M or HWeight (Lbs)L / M / HCFM @600 FPMCoil Face SizeL" x W"Frame SizeL" x W" x D"S21X (L / M / H) 9/10/10 81 6 x 3-3/4 9 x 6-1/4 x 5S22X (L / M / H) 10/10/11 122 9 x 3-3/4 12 x 6-1/4 x 5S23X (L / M / H) 12/12/13 190 14 x 3-3/4 17 x 6-1/4 x 5S24X (L / M / H) 12/13/14 234 9 x 6-3/4 12 x 9-1/4 x 5S25X (L / M / H) 18 / 19 / 21 364 14 x 6-3/4 17 x 9-1/4 x 5T26X (L / M / H) 35 / 38 / 40 572 22 x 7 25 x 9-1/4 x 7T27X (L / M / H) 42 / 45 / 48 848 22 x 10 23 x 12-1/4 x 7T28X (L / M / H) 51 / 55 / 60 1,160 30 x 10 33 x 12-1/4 x 7T29X (L / M / H) 59 / 65 / 76 1,534 30 x 13 33 x 15-1/4 x 7T30X (L / M / H) 67 / 74 / 83 1,910 30 x 16 33 x 18-1/4 x 7T31X (L / M / H) 72 / 79 / 88 2,140 42 x 13 45 x 15-1/4 x 7T32X (L / M / H) 76 / 84 / 94 2,280 30 x 19 33 x 21-1/4 x 7T33X (L / M / H) 90 / 101 / 114 2,940 42 x 17-1/2 45 x 19-3/4 x 7T34X (L / M / H) 104 / 117 / 133 3,560 56 x 16 59 x 18-1/4 x 7T35X (L / M / H) 116 / 132 / 153 4,240 42 x 25 45 x 27-1/4 x 7T36X (L / M / H) 128 / 147 / 171 4,960 56 x 22 59 x 24-1/4 x 7T37X (L / M / H) 153 / 178 / 208 6,350 42 x 37 45 x 39-1/4 x 7T38X (L / M / H) 178 / 208 / 245 7,750 56 x 34 59 x 36-1/4 x 7MARLO COILUpdated list prices and PDF version of this catalog are available at <strong>DRS</strong>.com. 113


Type UW51-55Unit CoolersGeneralUnit Coolers consist of a vaneaxial fan and motor, aDW type duct cooling coil, with air filtersand directionallouvers built as a single unit foroverhead mounting.Specifications• MIL-SPEC...................................... MIL-C-2939-E• Qualified products list................. QPL-2939• Shock qualification...................... MIL-S-901• Vibration qualification................. MIL-STD-167When ordering specify• Size (51-55)• Class- UW - Chilled water, gravity• Composition:- M – Magnetic- N – Nonmagnetic• Hand:- Left or right hand- (Left if not specified)• Hull number for replacement applicationsMARLO COILApproximate Dimensions in Inches and WeightsFlowrate CapacityFrame SizeAir FlowWeight (Lbs)ModelGPMBTU/HrL" x W" x D"CFMDryWetUW51 4 11,500 23 x 12-1/8 x 38-7/8 215 202 207UW52 7 22,200 25-1/4 x 14-3/8 x 38-5/8 340 236 239UW53 10 33,500 32-1/4 x 14-3/8 x 40-3/8 510 315 326UW54 15 49,300 374 x 16-5/8 x 40-7/8 750 411 427UW55 19 62,400 43-1/2 x 18-7/8 x 43-7/8 1120 510 534114Heating, Ventilating, Air Conditioning and Refrigeration


Type DW51-58Cooling Coils (50 Series)GeneralNavy Duct Water Coils (50 Series) use chilled water for thecooling and dehumidification of air. The cooling coils are builtas a single unit consisting of supporting framework, coolingelement and removable drain pan. Each cooling coil is builtready for installation and connection to the appropriate watersupply, return lines and condensate drainage piping.When ordering specify• Size (51-58)• Class- Class 1 – Chilled water, DW duct mounted- Class 2 – seawater (DWS), duct mounted• Composition:- M – Magnetic- N – Nonmagnetic•Hand:- Left or right hand- (Left if not specified)•Hull number for replacement applicationsSpecifications• MIL-SPEC...................................... MIL-C-2939-E• Qualified products list................. QPL-2939• Shock qualification...................... MIL-S-901• Vibration qualification................. MIL-STD-167• Refrigerant................................... R-12Approximate Dimensions in Inches and WeightsModel Weight (Lbs) Airflow CapacityCoil Face SizeOutside DimensionsDW Series Dry Wet CFM Ft/Min BTU/Hr 1W" x H" Ft 2W" x H" x D"51 152 157 280 491 14,000 11-3/4 x 7 0.57 26-1/2 x 12-1/8 x 1552 176 183 450 500 23,000 14 x 9-1/4 0.90 28-3/4 x 14-3/8 x 1553 225 236 670 496 34,000 21 x 9-1/4 1.35 35-3/4 x 14-3/8 x 1554 301 317 975 488 50,000 25 x 11-1/2 2.00 40-1/2 x 16-7/8 x 1555 390 414 1500 483 65,000 31-1/2 x 13-3/4 3.00 47 x 18-7/8 x 1556 562 602 2500 500 121,000 39-1/2 x 18-1/4 5.00 55 x 23-3/8 x 1557 975 1040 3750 507 190,000 39-1/2 x 28-7/16 7.50 56-3/8 x 36-7/8 x 17-5/858 1225 1310 5000 500 234,000 39-1/2 x 37-7/16 10.00 56-3/8 x 45-7/8 x 17-5/81 BTU rating based on the following conditions:Entering air: 80°F DB, 67F WBEntering water: 45FWater flowrate: 3.6 GPM per Ton6060 Hwy PP, High Ridge, MO 63049-0171 | Phone 636.677.6600 | Fax 636.677.1203 | Email navysales@marlocoil.com115


Type DW61-68Cooling Coils (60 Series)GeneralNavy Duct Water Coils (60 Series) use chilled water for thecooling and dehumidification of air. The cooling coils are builtas a single unit consisting of supporting framework, coolingelement and integral drain pan. Each cooling coil is builtready for installation and connection to the appropriate watersupply, return lines and condensate drainage piping.When ordering specify• Size (61-68)• Class 1 – Chilled water,DW duct mounted• Composition:- M – Magnetic- N – Nonmagnetic• Hull number for replacement applicationsSpecifications• MIL-SPEC...................................... MIL-C-2939-E• Qualified products list................. QPL-2939• Shock qualification...................... MIL-S-901• Vibration qualification................. MIL-STD-167Approximate Dimensions in Inches and WeightsModel Weight (Lbs) Airflow CapacityCoil Face SizeOutside DimensionsDW Series Dry Wet CFM Ft/Min BTU/Hr 1W" x H" Ft2W" x H" x D"61 106 111 280 491 9,020 11-3/4 x 7 0.57 26-5/8 x 12-3/4 x 16-1/462 125 132 450 500 16,470 14 x 9-1/4 0.90 28-15/16 x 15 x 16-1/463 157 163 670 496 27,260 21 x 9-1/4 1.35 35-15/16 x 14-3/8 x 16-1/464 203 218 975 488 39,970 25 x 11-1/2 2.0 40-5/8 x 17-1/4 x 16-1/465 278 302 1500 483 63,440 31-1/2 x 13-3/4 3.0 47-1/8 x 19-1/2 x 16-1/466 416 454 2500 500 112,200 39-1/2 x 18-1/4 5.0 55-1/8 x24 x 16-1/467 688 752 3750 507 183,600 39-1/2 x 28-7/16 7.5 55-7/16 x 34-7/8 x 18-7/868 838 923 5000 500 240,700 39-1/2 x 37-7/16 10.0 55-7/16 x 43-7/8 x 18-7/81 BTU rating based on the following conditions:Entering air: 80°F DB, 67F WBEntering water: 45FWater flowrate: 3.6 GPM per Ton116Heating, Ventilating, Air Conditioning and Refrigeration


Type FCAFan Coil AssembliesGeneralHVAC Fan Coil Assemblies (FCAs) are designed for floormounting, used in conjunction with a chilled water system,a drainage system, an air distribution system and a powersource for air conditioning spaces onboard surface ships.FeaturesType II FCAs are used when no duct sections are to beattached to the unit when it is placed in service.Type III FCAs should be specified when one or more ductsections are to be attached to the air inlet or to the air outletof the FCA when it is placed in service.When ordering specify• Size (21 - 25)• Type:- Type II – Three section unit: cooling coil, fan-motor,and air distribution plenum- Type III – Two section unit: cooling coil andfan-motor section• Grade:- High impact shock- Type X – (Non-hi shock)• Composition:- M – Magnetic• Hand:- Left or right hand- (Left if not specified)• Motor- Sealed- Non-Sis (Not sealed)- 1EEE45 MARINE DUTY• Grille requirements- Inlet- Outlet• Cover plate requirements- Inlet- Outlet• Hull number for replacementApplications1 BTU rating based on the following conditions:Entering air: 80°F DB, 67F WBEntering water: 45FWater flowrate: 3.6 GPM per TonSpecifications• MIL-SPEC...................................... MIL-A-23798• Shock qualification...................... MIL-S-901• Vibration qualification................. MIL-STD-167• Cooling Media.............................. Chilled waterApproximate Dimensions in Inches and WeightsModelCapacity Cabinet Size Air FlowWeight (Lbs)BTU/Hr 1 L" x W" x D" CFM DryWetFCA 21 36,700 44 x 28 x 75 760 1190 1203FCA 22 59,900 44 x 28 x 75 1260 1260 1289Type II FCA 23 90,900 48 x 32 x 75 1880 1429 1472FCA 24 117,700 51 x 37 x 75 2550 1546 1590FCA 25 178,400 56 x 37 x 75 3800 1770 1836FCA 21 36,700 44 x 28 x 50 760 990 1003FCA 22 59,900 44 x 28 x 50 1260 1060 1089Type III FCA 23 90,900 48 x 32 x 75 1880 1210 1253FCA 24 117,700 51 x 37 x 50 2550 1305 1349FCA 25 178,400 56 x 37 x 50 3800 1520 15866060 Hwy PP, High Ridge, MO 63049-0171 | Phone 636.677.6600 | Fax 636.677.1203 | Email navysales@marlocoil.com117


Type FCU H/VFan Coil UnitsGeneralHVAC Fan Coil Units (FCU) are used as an alternative to builtupair conditioning recirculation systems of a ship’s heating,ventilating and air conditioning (HVAC) system. They provideheating, cooling, and air recirulation required to satisfycompartment environmental design conditions with a savingsin space and wight over built-up systems.The units consist of fans and two speed motors, air filters,operational controls, thermostat, cooling coil, thermal andacoustical insulation and optional electric heaters.When ordering specify• Size (1-8)• Type:- H: Horizontal – Overhead mounting- V: Vertical – Bulkhead mounting• Composition:- M – Magnetic- N – Nonmagnetic• Chilled water (CHW) connections:- Left or right hand (Left if not specified)• Heater options:- Heating in Kilowatts (kW)as listed in table on the right• Grade:- High impact shock- Type X – (Non-hi shock)• Motor- Sealed- Non-SIS (Not sealed)• Motor protection- LVP – Low voltage protection- LVR – Low voltage release• Hull number for replacementapplicationsModelH or VFCU H1/ V1FCU H2/ V2FCU H3/ V3FCU H4/ V4FCU H5/ V5FCU H6/ V6FCU H7/ V7FCU H8/ V8CapacityBTU/Hr 1Specifications• MIL-SPEC...................................... MIL-A-24775• Shock qualification...................... MIL-S-901• Vibration qualification................. MIL-STD-167Approximate Dimensions in Inches and WeightsHeat Options kWOption1 /Option2 /Option3…Cabinet SizeL" x W" x D"Air FlowCFMWeight (Lbs)DryWet5850 0 / 1.2 / 2.2 / 3.3 50 x 25 x 10 145 261 2649690 0 / 1.2 / 2.2 / 3.3 50 x 25 x 10 240 268 27115,280 0 / 1.75 / 3.5 / 5.25 52 x 27 x 14 350 343 34822,890 0 / 2.0 / 4.0 / 6.0 52 x 36 x 14 530 393 40130,500 0 / 2.0 / 4.0 / 6.0 52 x 44 x 14 690 478 48839,910 0 / 3.0 / 6.0 / 9.0 52 x 39 x 17 950 513 52445,560 0 / 3.0 / 6.0 / 9.0 52 x 52 x 17 1100 652 66472,920 0 / 3.0 / 6.0 / 9.0 52 x 62 x 17 1650 774 7931 BTU rating based on the following conditions:Entering air: 80°F DB, 67F WBEntering water: 45FWater flowrate: 3.6 GPM per Ton118Heating, Ventilating, Air Conditioning and Refrigeration


Type FCU 1-9Spruance Class Fan Coil UnitsGeneralSpruance Class HVAC Fan Coil Units sizes 1-5 are designed foroverhead mounting, sizes 6-9 are designed for either overheador bulkhead mounting.The units consist of direct drive fans and single speed motors,cleanable air filters, thermostat, cooling coil, thermal andacoustical insulation and optional electric heaters with hightemperature thermal cut-out switch.This series of HVAC Fan Coil Units have been supplied for useon the Spruance Class Destroyers (DD-963 to 992 & 997) andKidd Class Destroyers (DD-993 to 996).When ordering specify• Size (1-9)• Class:- Left or right hand (Left if not specified)• Heater options:- Heating in Kilowatt (kW) as listed in table below• Hull number for replacement applicationsFeatures• Designed as a replacement for Spruance and KiddDestroyer fan coil units• Cleanable aluminum air filters• Coper tube and fin coil• Designed for chilled water service• Coil connections interchangeable from let to right hand• Optional electric heater• Complete specification and selection data availableSpecifications• MIL-SPEC (Heater)....................... MIL-H-22577• Shock qualification...................... MIL-S-901• Vibration qualification................. MIL-STD-167Approximate Dimensions in Inches and WeightsModelCapacityHeat Options (kW)Cabinet SizeAir FlowWeight (Lbs)BTU/Hr 1Option1 / Option2 / Option3…L" x W" x D"CFMDryWetFCU-1 6000 0 / 1.0 / 1.5 / 2.5 42 x 21 x 10 214 170 175FCU-2 8500 0 / 0.6 / 1.0 / 1.5 / 2.0 / 2.5 42 x 28-1/2 x 8-1/4 305 205 210FCU-3 12,300 0 / 0.6 / 1.0 / 1.5 / 2.0 / 2.5 / 3.0 42 x 35-1/2 x 8-1/4 358 238 243FCU-4 17,900 0 / 0.6 / 1.0 / 1.5 / 2.0 / 2.5 / 3.0 / 3.5 42 x 49-1/2 x 8-1/4 472 306 311FCU-5 22,200 0 / 0.5 / 1.0 / 1.5 / 2.0 / 2.5 / 3.5 42 x 62-1/2 x 8-1/4 565 348 453FCU-6 21,500 0 / 1.65 / 2.5 / 6.0 61 x 22-1/2 x 17 976 360 365FCU-7 34,000 0 / 1.0 / 1.5 / 2.0 / 2.5 / 3.0 / 4.0 61 x 30-1/2 x 17 1236 395 400FCU-8 45,000 0 / 0.5 / 1.0 / 3.5 / 5.0 / 7.5 61 x 38-1/2 x 17 1764 515 520FCU-9 56,500 0 / 0.5 / 1.0 / 1.5 / 2.5 / 4.0 / 4.5 61 x 49-1/2 x 17 1988 575 5801 BTU rating based on the following conditions:Entering air: 80°F DB, 67F WBEntering water: 45FWater flowrate: 3.6 GPM per Ton6060 Hwy PP, High Ridge, MO 63049-0171 | Phone 636.677.6600 | Fax 636.677.1203 | Email navysales@marlocoil.com119


Type 11-16Unit HeatersGeneralUnit Heaters are designed for overhead mounting. The unitsconsist of a fan and motor, steam/hot water heating coil, fanguard and directional louvers built as a single unit. Electricheating elements are available in lieu of the standard steam/hot water coil.Specifications• MIL-SPEC...................................... MIL-U-17293• Shock qualification...................... MIL-S-901• Vibration qualification................. MIL-STD-167When ordering specify• Size (11-16)• Hull number for replacement applicationsApproximate Dimensions in Inches and WeightsModelPower (AC)Volts / PhCapacityBTU/HrCabinet SizeL" x W" x D"Air FlowCFMWeight (Lbs)Size 11 115 / 1 18,000 23 x 15.5 x 29 300 98Size 12 115 / 1 30,000 25 x 18.5 x 29 500 112Size 13 115 / 1 46,000 28 x 21.5 x 30 790 127Size 14 115 / 1 74,500 34 x 23.5 x 30 1330 167Size 15 440 / 3 116,000 28 x 22 x 31 2060 183Size 16 440 / 3 186,500 36 x 22 x 31 3310 250120Heating, Ventilating, Air Conditioning and Refrigeration


Type GW/GF 1, 3 & 5Gravity Cooling CoilsGeneralNavy Gravity Water / Refrigerant Coils (GW/GF Series) usechilled water or refrigerant for the cooling and dehumidificationof air. The gravity coils shall be built as a single unitconsisting of supporting framework, drain pans, and coolingelement. Each gravity coil is ready for installation andconnection to the appropriate water/refrigerant supply andreturn lines and condensate drainage piping.When ordering specify• Size (1, 3 or 5)• Class- GW - Chilled water, gravity- GF – Refrigerant, gravity• Composition:- Standard ASTM A569 steel construction- Copper fin, copper tube core available with eitherpaintedcarbon steel frame or SST frame- ASTM A240 316 corrosion resistent stainless steelSpecifications• MIL-SPEC...................................... MIL-C-2939• Qualified products list................. QPL-2939• Shock qualification...................... MIL-S-901• Vibration qualification................. MIL-STD-167Approximate Dimensions in Inches and WeightsModelWeight (Lbs)CapacityCoil Face SizeFrame SizeWater / R-12DryWetBTU/Hr 1L" x W"L" x W" x D"GW1 / GF1 42 96 1,000 - 1,100 22 x 11-5/8 26 x 14-5/8 x 10GW3 / GF3 98 108 2,800 - 3,300 44 x 17-5/8 48 x 20-5/8 x 10GW5 / GF5 146 162 4,500 - 5,500 54 x 23-5/8 58 x 26-5/8 x 101 BTU rating based on the following conditions:Entering air: 80°F DB, 67F WBEntering water: 45FWater flowrate: 3.6 GPM per Ton6060 Hwy PP, High Ridge, MO 63049-0171 | Phone 636.677.6600 | Fax 636.677.1203 | Email navysales@marlocoil.com121


PERMANENT MAGNET MOTORSEfficient Motor/Generator SolutionsWherever Variable Speed is NeededTurn to <strong>DRS</strong> Permanent Magnet (PM) motors and generators fordimension and/or weight constrained applications where significanttorque, high efficiency and precise control across load and speedvariations are essential. They provide reliable solutions for pumps,fans, portable generators, electro-mechanical actuators and othershipboard auxiliaries.At <strong>DRS</strong> our customer-focused approach and our unique set of corecompetencies enable us to develop PM machines in a range of radialand axial-field topologies that meet tough standards for military andcommercial applications. Our motors, generators and drives cansupport the electrification of the naval and marine forces of todayand tomorrow.


Electric Ship Propulsion MotorsGeneralSupporting requirements for electric propulsion andgrowing power efficiency demands on future ships.<strong>DRS</strong> Technologies offers a superior direct drive shippropulsion solution using Permanent Magnet (PM) motortechnology. PM motors have significant advantages in size,weight and power over conventional motors. Because thehigh-strength magnets provide the rotor flux instead of wirewoundrotor poles PM motors produce more torque with thesame amount of supplied current.Specifications: 36.5 MW PMMachine for Electric Ship PropulsionPerformanceOutput50,000 HP (36.5 MW)Speed1-127 RPMTorque>2 M ft. lbs. (2.7M Nm)Motor Efficiency 97.5%MechanicalMotor Length202 inches (5.1 meters)Motor Width214 inches (5.4 meters)Motor Height209 inches (5.3 meters)Motor Weight280,000 lbs. (127 tonnes, 127,000 kg)Cooling MethodFresh waterElectricalVoltage1450 VACPhasesDoubly-fed, 3-phaseInsulation Class R (220° C)Temperature Rise H (180° C)The smaller footprint of our propulsion PM motors allowsmore flexibility in engine room design and increased cargospace, and the simpler construction results in increasedreliability and durability.Our 35.6 MW PM machine illustrated here is an exampleof the advantages this technology offers for electric shippropulsion. Ongoing developments in permanent magnetpropulsion motor design offer greater power density,increased energy efficiency, and reduced manufacturing cost.Highlights• Space & Weight limits – Offers high torque in a compactpackage and minimal engine room impact• Fuel Savings – High efficiency performance at full and partload• Life Cycle Costs – Reduced maintenance costsContent Approved for Public Release, Dept. of the Navy 1-8-2009The <strong>DRS</strong> 36.5 MW Permanent Magnet Motor System(PMMS) at the U.S. Navy Land Based Test Site (LBTS)in Philadelphia, PAThe <strong>DRS</strong> 36.5 MW Permanent Magnet Motor System(PMMS) at the U.S. Navy Land Based Test Site (LBTS)in Philadelphia, PAPERM. MAGNET MOTORSUpdated list prices and PDF version of this catalog are available at <strong>DRS</strong>.com. 123


Hybrid Electric Ship PropulsionMotors/GeneratorsHighlights• Space & weight benefits –High torque in a compactpackage means minimal engine room impact• Fuel savings – Using PM power at low speeds can savethousands of barrels of fuel• Life cycle costs – Reduced gas turbine or diesel motoroperation time saves on maintenance costs• Easy integration and minimum impact to engine room• <strong>DRS</strong> PM machines provide a mature technology: evolvedfrom a lineage of fielded permanent magnet motors with ahistory of performance in extreme operating conditionsGeneralSupporting initiatives for increased energy efficiency ontoday’s naval and marine platforms.The combination of high fuel costs and inefficientpropulsion make gas turbine driven ships an idealcandidate for hybrid propulsion. The hybrid systemallows the propulsion gas turbines to be shut down forlow speeds, driving the ship with a variable speed hybridelectric PM propulsion motor instead. The PM machinecan either be directly mounted to the propulsion shaft ormounted to a reduction gear.On a ship with a diesel propulsion system using ahybrid electric drive system to propel ship at low speedsreduces the accumulation of coking deposits over time.This can significantly reduce the mean time betweenrepairs, lowering the risk of damage to the diesel andexpense of repairs.Specifications: 1.5MW PM Machine forHybrid Electric Ship PropulsionPerformanceOutput2,010 HP (1.5 MW)Speed498 RPMMotor Efficiency 98%<strong>DRS</strong> PermanentMagnet (PM) MotorDDG 51 Main ReductionGear (MRG)Our 1.5 MW machine illustrated here is an example ofthe advantages this technology offers for hybrid electricship propulsion.PERM. MAGNET MOTORSFor existing ships or those under development theadaptation of an innovative <strong>DRS</strong> hybrid electric driveusing power-dense permanent magnet (PM) technologycan significantly reduce total ownership costs.124Permanent Magnet Motors


Permanent-Magnet Axial Air Core(PAAC) Motors and GeneratorsHighlights• Space and weight limits - PAAC machines are among themost power dense in the world - 30-50% more power densethan induction motors• Critical applications - Ideal for applications requiring highprecision and/or high torque• Life cycle costs - Compact and simple design providessuperior reliability & low production costs• Acoustic advantages - Few moving parts and sinusoidalBEMF make the PAAC inherently quietThis 10 HP PAAC motor is 1/3 the size andweight of a comparable induction motor.GeneralA light-weight, rugged, acoustically superior solution forapplications ranging from fans, to portable generators, tothrottle and other electro-mechanical actuators.The PAAC series Permanent Magnet (PM) brushless motorsand generators for military applications are designed toprovide exceptional versatility at low cost. PM machinesfeature high-strength magnets mounted to the rotor to providethe magnetic field that interacts with the electrical windings.Since the magnets have no electrical losses, more electricalpower is converted to mechanical torque, increasing bothpower density and efficiency.The PAAC series takes the advantages of PM technology onestep further by using Printed Circuit Board (PCB) technologyto increase power density and efficiency in the stator aswell. The result is an extremely power dense, efficient, andversatile machine that can be utilized across a vast array ofapplications requiring variable speed control.SpecificationsPerformanceOutputSpeedMotor EfficiencyRanges from 1/3HP (0.25KW) to1000HP (746KW)Depending on applicationDepending upon size and application166 Boulder Drive, Suite 201E, Fitchburg, MA 01420 | Phone 978.353.5500 | Fax 978.353.5107 | Email info@drs-pt.com125


Permanent-Magnet Axial (PA)Series PM Motors and GeneratorsSpecifications: PA44-450GeneralCombining rugged construction, high torque and precisecontrol for demanding applications where reliability is keyand downtime is not an option.The <strong>DRS</strong> PA series Permanent Magnet (PM) motors andgenerators are built to last under the world’s most demandingapplications. Lightweight and compact , the PA designdelivers more power per pound than other electric motorsand continuous high torque, even at stall. Since the PA rotoruses permanent magnets it works equally well as a generator,making it the ideal choice for mobile generator sets, tractionsystems, cranes, elevators and lifts.Highlights• Space and weight – Power density of existing modelsgreater than 1 horsepower/lb• Critical applications - Ideal for applications requiring highprecision and/or high torque• Reliability – Proven to survive four times longer thanconventional motors in demanding applicationsPerformanceRated Power450 HP (336KW)Rated Speed3600 RPMRated Torque1,475 ft. lbs. (2,000 Nm)Efficiency at Rated Speed 95%MechanicalLength8.8 inches (224 mm)Diameter25.5 inches (648 mm)Mounting24.6 inches (625mm) bolt circleStandard Shaft TypeDIN 5480 Spline(W60 x 2 x 30 x 28 x 9g)Motor Weight395 lbs (195 kg)Cooling MethodLiquid (water/glycol)ElectricalRated Current425 A rmsVoltage Constant800 V peakSpecifications: PA57-1000PerformanceRated Power1,000 HP (746 kW)Rated Speed4,000 rpmRated Torque2,712 Nm (2,000 lb-ft)Efficiency at Rated Speed 96%MechanicalLength10.20 inches (259.1 mm)Diameter31 inches (787 mm)Mounting30 inches (762 mm) bolt circleStandard Shaft TypeANSI 5480 Spline(W60 x 2 x 30 x 28 x 9g)Motor Weight750 lbs. (340 kg)Cooling MethodLiquid ( water/glycol)ElectricalRated Current335 A rmsVoltage Constant0.24 V/rpm(240 V amplitude @1,000 rpm)The <strong>DRS</strong> PA series motors/generators have been developedfor use in oil and gas drilling, transit, marine and otherapplications.126Permanent Magnet Motors


Permanent-Magnet Radial FieldEmbedded Magnet (PRE) Series MotorsSpecifications: PRE34-600GeneralDesigned for superior performance in severe environments.The rugged <strong>DRS</strong> Permanent Magnet, Radial field, EmbeddedMagnet (PRE) series of brushless motors delivers more torqueper pound than other electric motors in its class.In addition to impressive power density the simplerconstruction of PM machines versus induction machinesmeans they are highly reliable and durable. <strong>DRS</strong> PRE PMmotors are designed to operate in harsh duty cycles and withmost commercially available variable frequency drives.Highlights• Retrofit – PRE machines built to industry standard frames• Critical applications – Ideal for harsh duty applicationswhere reliability is important• Life cycle costs – 3 year warranty• High efficiency – Superior performance at full and part loadPerformanceRated Power600 HP (447KW)Rated Speed1200 RPMRated Torque1,475 ft. lbs. (2,000 Nm)Efficiency at Rated Speed 97%MechanicalLength52.9 inches (1343 mm)Vertical Mounting24.4 inches (621 mm) boltcircle diameter using 4 x 1 inch(25.4 mm) boltsHorizontal Mounting NEMA 5011Standard Drive Options Customizable (up to 4 inch,100 mm, diameter)Example: SAE ExternalShaft Side Load5000 lbs. (22.2KN) lateralMotor Weight3500 lbs. (1588 kg) with blower3300 lbs. (1497 KG) without blowerCooling MethodExternal blowerElectricalRated Current732 ArmsVoltage Constant0.31 Vrms/RPM(line to line)ConnectionsStator: 3 Phase Wye,floating groundInterface Box: NEMA IP 54166 Boulder Drive, Suite 201E, Fitchburg, MA 01420 | Phone 978.353.5500 | Fax 978.353.5107 | Email info@drs-pt.com127


Rotating Machinery Packaging —Steam Turbine Design, Assembly and RepairRotating Machinery PackagingAs a full-service equipment packager we have designed and/or assembled aero-derivativegas turbine packages using each major engine manufacturers’ products. Theseunits are in service in naval and ground power applications around the world. Manywere specifically designed for extreme environments. In other applications, stringentspecifications required the use of skilled design techniques to minimize noise andvibration while enhancing the unit’s robustness and survivability.Our extensive capabilities include developing composite enclosures, performing systemshock analyses (applying design adjustments if needed), precision assembly of largeequipment, and obtaining full naval qualification to MIL-SPEC or ABS NVR standards.Whether you require build-to-print production or more extensive systems packaging <strong>DRS</strong>is ready to meet the needs of any machinery packaging project.Steam Turbine Design, Assembly and RepairEvolving from our GE heritage, <strong>DRS</strong> is one of the foremost steam turbine design companies.Our exceptional steam turbine team supports commercial power producers, steamturbine OEMs and the U.S. Navy by developing new turbine designs and redesigning andupgrading old equipment to meet today’s efficiency and reliability standards.With a full array of engineering and design capabilities, including computational fluiddynamics (CFD), rotor dynamics, acoustics, shock and vibrations analysis, and heatbalance assessment, <strong>DRS</strong> is ready and able to solve your most challenging steamturbine design and repair problems.128166 Boulder Drive, Suite 201E, Fitchburg, MA 01420 | Phone 978.353.5500 | Fax 978.353.5107

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