Eaton EGS Series Instruction Booklet

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8Instruction Booklet IB0162064ENEffective January 2014O & M Manual for the EGS ServiceEntrance Automatic Transfer SwitchEaton Corporation www.eatoncanada.ca4.5 Generator & Load Power Cable ConnectionWarningPOWEr COnDUCTOrS MaY HaVE VOLTagE PrESEnT THaT Can CaUSESEVErE PErSOnaL inJUrY Or DEaTH. DE-EnErgiZE aLL POWErOr COnTrOL CirCUiT COnDUCTOrS TO BE COnnECTED TO THE aTSEQUiPMEnT BEFOrE BEginning TO WOrK WiTH THE COnDUCTOrS anD/Or TErMinaTing THEM TO THE EQUiPMEnTCaUTiOnTO HELP PrEVEnT COMPOnEnT DaMagE Or FUTUrE MaLFUnCTiOnS,USE EXTrEME CarE TO KEEP COnTaMinanTS OUT OF THE aTSEQUiPMEnT WHEn MaKing THE POWEr CaBLE COnnECTiOnS.Test all power cables prior to connection to the unit to ensure thatthe conductors or cable insulation has not been damaged whilebeing pulled into position.Power cables are to be connected to solderless, screw type lugslocated on the contactor assembly. Verify that the lugs supplied willaccommodate the power cables being used. Also verify that thecables comply with all local electrical codes. Standard ATS equip-ment, as supplied from the factory, will accommodate the wire sizesshown in Table 3.Table 3. Wire Sizes for ATSs.Transfer Switchamp ratingContactor LugSize rangenumber of Cablesper Phase100 #14 - 1/0 AWG 1200 #4 AWG - 300 MCM 1CaUTiOniMPrOPEr POWEr CaBLE COnnECTiOnS Can CaUSE EXCESSiVE HEaTanD SUBSEQUEnT EQUiPMEnT FaiLUrE.ote:N Tighten the cable lugs to the torque identified on the labelaffixed to the unit’s door.Connect cables as follows (see Figure 10, and Table 3):• The generator power cables to the generator lugs on the contac-tor assembly.• The load power cables to the load lugs on the contactor assem-bly.• The generator neutral cable to the generator neutral lug on theneutral bar assembly.• The load neutral cable to the load neutral lug on the neutral barasssembly.• The generator and load ground cable to the generator and loadground lugs on the ground bar assembly.WarningFaiLUrE TO PrOPErLY COnnECT THiS TranSFEr SWiTCH PEr nFPa 70,THE naTiOnaL ELECTriC CODE, MaY rESULT in PrODUCT FaiLUrE, FirE,LOSS OF PrOPErTY, LOSS OF LiFE, ETC.Figure 8. Generator & Load Power Cable Connection Locations.4.6 WiringWarningPOWEr COnDUCTOrS anD COnTrOL Wiring MaY HaVE VOLTagEPrESEnT THaT Can CaUSE SEVErE PErSOnaL inJUrY Or DEaTH.DE-EnErgiZE aLL POWEr Or COnTrOL CirCUiT COnDUCTOrS BEFOrEBEginning TO PErFOrM anY Wiring aCTiViTY TO Or WiTHin THE aTSEQUiPMEnT.CaUTiOnCHECK THE aTS EQUiPMEnT naMEPLaTE FOr raTED VOLTagE. iTSHOULD BE THE SaME aS THE UTiLiTY anD gEnEraTOr LinE VOLTagES.OPEraTing THE EQUiPMEnT On iMPrOPEr VOLTagE Can CaUSEEQUiPMEnT DaMagE.