Cold Weather Catalog - Chromalox Precision Heat and Control
Cold Weather Catalog - Chromalox Precision Heat and Control
Cold Weather Catalog - Chromalox Precision Heat and Control
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<strong>Control</strong>sSpecificationsFreeze Protection<strong>Heat</strong> Trace Panels(cont’d.)L1L2L3NPower SourceAmbient Operating TemperatureField Wire SizeGround Fault Breaker TypeEnclosureMain Bus SizeMain Breaker Size120/240 Vac Single Phase120/208 Vac Three-Phase 4-Wire277/480 Vac Three-Phase 4-Wire-32˚F to 122˚F (With Enclosure <strong>Heat</strong>er)14 - 18 AWG (15 - 30 Amp C.B), 8 - 4 AWG(40 Amp C.B)30mA Ground Fault Equipment ProtectionNEMA 4 or NEMA 4X 304 Stainles Steel (option)100 Amp <strong>and</strong> 225 Amp100 Amp Two-Pole Main Disconnect Switch withthrough Door Rotary H<strong>and</strong>le250 Amp Three-Pole Main Disconnect Switchwith through Door Rotary H<strong>and</strong>lePressurization System Type Z Purge Pressurization System for Class 1Division 2 AreaApprovalsUL <strong>and</strong> cULHEAT TRACECONTROL PANELSTHREE-POLEMAIN CIRCUITBREAKEROFFCONTACTORCOILTHREE-POLEMAINCONTACTORCNCEXTERNAL CONTROLLER/ PANELTHERMOSTATENERGIZEDONE-POLE WITH 30mAGROUND FAULT TRIP(120/277 Vac)POWERCONNECTIONEND SEALFREEZE-PROTECTIONCIRCUITAmbient SensingThree Phase208/120 4-Wire or 480/277 4-WireTWO-POLE WITH 30mAGROUND FAULT TRIP(208/480 Vac)HEATINGCABLE FREEZE-PROTECTIONCIRCUIT*EXTERNAL CONTROLLER/THERMOSTAT SOLD SEPARATELYL1 L2 NTHREE-POLEMAIN CIRCUITBREAKERLine SensingSingle Phase240/120ONE-POLE WITH 30mAGROUND FAULT TRIP(120/277 Vac)*LINE-SENSINGTHERMOSTATC NCPOWERCONNECTIONEND SEALFREEZE-PROTECTIONCIRCUITTWO-POLE WITH 30mAGROUND FAULT TRIP(208/480 Vac)*LINE-SENSINGTHERMOSTATCNCFREEZE-PROTECTIONCIRCUIT*EXTERNAL CONTROLLER/THERMOSTAT SOLD SEPARATELY163
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