Specification Bulletin 682-31 - S&C Electric Company

S&C Remote Supervisory Vista® Underground Distribution Switchgearcommunication and control equipment—One Suffix Must Be SpecifiedCustom Communication and Control Package. Includes push buttons for local control of motoroperators, LED position indicators, operation counter, battery charger, and battery packs. Alsoincludes user-specified remote terminal unit (RTU) and user-specified communication device.Requires user-supplied 120-volt 50/60-Hz ac external power source for battery charger. Othervoltages are available upon requestItemSuffix to be Addedto SwitchgearCatalog NumberfApplicableto ModelsAllControl Unit for Use With RTU by Others. Includes push buttons for local control of motor operators,LED position indicators, operation counter, battery charger, and battery packs. Also includesprovisions for mounting user-supplied, user-installed RTU and communication device in low-voltageenclosure or compartment. Requires user-supplied 120-volt 50/60-Hz ac external power source forbattery charger. Other voltages are available upon requestControl Unit for Use Without RTU. Includes push buttons for local control of motor operators, LEDposition indicators, operation counter, battery charger, and battery packs. Requires user-supplied120-volt 50/60-Hz ac external power source for battery charger. Other voltages are available uponrequestf Refer to your nearest S&C Sales Office.-Y3 All-Y6 AllINTERNAL CONTROL POWER12ItemInternal Control Power. Includes push buttons for local control of motor operators, LED positionindicators, operation counter, battery charger, and battery packs. A voltage transformer is mountedinside the Vista UDS tank and supplies control power to battery charger and battery packsSuffix to be Added toBase Catalog Number-Y4Applicableto ModelsAll, through5 ways1 If internal control power is not specified, user must supply 120-Vaccontrol power to low-voltage enclosure.2 May increase the size and weight of the tank and outer enclosure ontwo-way units rated 12.5 kV short-circuit and four-way units. An appropriatedimensional drawing will be furnished.SINGLE-POLE OR THREE-POLE FAULT INTERRUPTING123ItemSuffix to be Addedto SwitchgearCatalog NumberSingle-Pole Manual Fault Interrupter on all fault-interrupting ways -T0Three-Pole Manual Fault Interrupter on one fault-interrupting way (single-pole manual faultinterrupter on all other fault-interrupting ways)Three-Pole Manual Fault Interrupter on two fault-interrupting ways (single-pole manual faultinterrupter on all other fault-interrupting ways)Three-Pole Manual Fault Interrupter on three fault-interrupting ways (single-pole manual faultinterrupter on all other fault-interrupting ways)Three-Pole Manual Fault Interrupter on four fault-interrupting ways (single-pole manual faultinterrupter on all other fault-interrupting ways)Three-Pole Manual Fault Interrupter on five fault-interrupting ways (single-pole manual faultinterrupter on all other fault-interrupting ways)Three-Pole Manual Fault Interrupter on six fault-interrupting ways -T61 Not applicable to models rated 25 kA short circuit. All 25-kA-ratedmodels include three-pole manual fault interrupters.2 Refer to the nearest S&C Sales Office for other possible configurations.-T1-T2-T3-T4-T5Applicableto Models12.5-kA-rated modelswith 1 or more faultinterrupters12.5-kA-rated modelswith 1 or more faultinterrupters12.5-kA-rated modelswith 2 or more faultinterrupters12.5-kA-rated modelswith 3 or more faultinterrupters12.5-kA-rated modelswith 4 or more faultinterrupters12.5-kA-rated modelswith 5 or more faultinterrupters12.5-kA-rated modelswith 6 or more faultinterrupters3 For standard models, components are in the following order (from leftto right) when facing the operating side of the gear: load switches, bustaps, three-pole fault interrupters, single-pole fault interrupters.S&C Specification Bulletin 682-31 11