UPSConnections
Electricalconnectionsandcabinetinterconnectionwillvarydependinguponthecongurationand
optionsselectedwithyourMGEGalaxy4000UPSsystem.Refertotheinstallationdrawingssupplied
withyourequipment.
ConnectingPowerCableConnections:
Toaccesstheconnectionterminalblocks,opentherightdoortotheMGEGalaxy4000UPS.Remove
thesafetypanellocatedinthelowerrighthandsectionoftheunit.See“TypicalPowerConnections“.
1.Thegroundandneutralconductorsmustbeconnectedtothegroundandneutralbusbars,
respectively.Theinputandoutputneutralareconnectedattheneutralbusbar.
2.ConnectthethreeconductorsofthemainACsourcetoterminalblockTB1.
3.Ifbypasssourceispresent,connecttheconductorsofthebypassACsourcetoterminalblock
TB3.Ifbypasssourceisnotpresent,verifyjumpersinplacebetweenTB1andTB3.
4.ConnectthethreeconductorssupplyingtheloadtoterminalblockTB2.
5.Connectthebatteryconductorstothepositiveandnegativebusbars.
6.Secureallcableswithcableties.
7.Putallpanelsandcoversbackinplace.
MainACInputConnections
Theconnectionstobemadearethethreephases,neutral,andgroundcablesfromtheutilityACpower
sourcetotheUPS.ThemainACinputcablesareterminatedatthemaininputterminalblock(TB1).
See“TypicalPowerConnections“.
Note:Forsingleinput(optionalconguration),jumpercablesareprovidedfrom
terminalblocksTB1toTB3.
BypassACInputConnections(optional)
ThebypassACinputcablesareterminatedatthebypassinputterminalblock(TB3).Thisoption
providesaseparateACinputsourceforbypassoperation.See“TypicalPowerConnections“.
12MGEGalaxy400040–75kV A208V990–3964–001