Page 1

MGEGalaxy4000
40–75kVA208V
Installation
Page 2
Page 3

TableofContents
Safety....................................................................................................................................1
SafetyInstructions......................................................................................................1
CerticationStandards—ThreePhaseUPS.............................................................1
SafetyofPersons......................................................................................................2
ProductSafety...........................................................................................................2
SpecialPrecautions...................................................................................................2
Environment..............................................................................................................2
Specications...................................................................................................................3
EnvironmentalRecommendations..........................................................................3
ElectricalSpecications............................................................................................3
MechanicalAssembly..................................................................................................4
MajorComponents......................................................................................................5
SingleLineDiagram..................................................................................................5
StandardCabinets.......................................................................................................5
PreparationforOperation..........................................................................................6
CabinetPlacement.......................................................................................................6
HeatRejection...............................................................................................................7
CabinetClearances.....................................................................................................7
PreparationforStorage..............................................................................................7
PreparetheInstallation...............................................................................................8
ConduitPlateLocationsforBottomEntry............................................................8
ConduitPlateLocationsforTopEntry...................................................................9
ConnectACInputandPowerCables..................................................................10
InstallationSteps.........................................................................................................10
Firststepsbyanon-sitequaliedTechnicalEngineer..............................................10
ElectricalConnections...............................................................................................10
TypicalPowerConnections.......................................................................................11
UPSConnections.......................................................................................................12
MainACInputConnections.......................................................................................12
BypassACInputConnections(optional)...................................................................12
ConnectBatteryCables..............................................................................................13
990–3964–001
MGEGalaxy400040–75kV A208V
i
Page 4

BatteryConnections...................................................................................................13
BatteryControlConnections....................................................................................13
ConnectACOutput.......................................................................................................14
ACOutputConnections.............................................................................................14
ExternalMaintenanceBypassControlConnections(optional)......................14
AccessoriesOutlets....................................................................................................14
ConnectRemoteEmergencyPowerOff............................................................15
RemoteEmergencyPowerOffConnections........................................................15
ConnectRelayCommunicationCard..................................................................16
RelayCommunicationCardContacts....................................................................16
RelayCommunicationCardConnections.............................................................18
CharacteristicsofOutputContacts........................................................................18
CharacteristicsofInputContacts............................................................................18
AppendixSingleLineDiagram...............................................................................19
ii
MGEGalaxy400040–75kV A208V
990–3964–001
Page 5

Safety
SafetyInstructions
ThismanualcontainsimportantinstructionsforMGEGalaxy4000thatmustbefollowedduring 
operationandmaintenanceoftheequipment.
WARNING:Openingenclosuresexposehazardousvoltages.Alwaysreferserviceto 
qualiedpersonnelonly.
WARNING:Asstandards,specications,anddesignsaresubjecttochange,please 
askforconrmationoftheinformationgiveninthispublication.
Note:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClass
Adigitaldevice,pursuanttopart15oftheFCCrules.Theselimitsaredesignedto 
providereasonableprotectionagainstharmfulinterferencewhentheequipmentis 
operatedinacommercialenvironment.Thisequipmentgenerates,uses,andcanradiate 
radiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstruction 
manual,maycauseharmfulinterferencetoradiocommunications.Operationofthis 
equipmentinaresidentialareaislikelytocauseharmfulinterferenceinwhichcasethe 
userwillberequiredtocorrecttheinterferenceatuser'sownexpense.
WARNING:Toreducetheriskofreorelectricshock,installinacontrolledindoor 
environmentfreeofconductivecontaminants.Thisequipmentisintendedonlyfor 
installationsinaRESTRICTEDACCESSLOCATION.
WARNING:HIGHLEAKAGECURRENT.Earthconnectionessentialbefore 
connectingsupply .
CerticationStandards—ThreePhaseUPS
•IEC1004/ANSIC62.41StandardsforSurgeWithstandAbility.
•FCCPart15,SubpartJ,ClassA.
•UL/CUL1778,StandardsforUninterruptiblePowerSupplyEquipment.
•NEMAPE1-UninterruptiblePowerSystems.
•NFPA70–NationalElectricalCode.
•ISO9001.
990–3964–001
MGEGalaxy400040–75kV A208V
1
Page 6

SafetyofPersons
•TheUPShasitsowninternalpowersource(thebattery).Consequently,thepowerterminalsmay
beenergizedeveniftheUPSisdisconnectedfromtheACpowersource.
•TheUPSmustbeproperlygrounded.
•ThebatterysuppliedwiththeUPScontainssmallamountsoftoxicmaterials.Toavoidaccidents,
thedirectiveslistedbelowmustbeobserved: 
—Neverburnthebattery(riskofexplosion). 
—Donotattempttoopenthebattery(theelectrolyteisdangerousfortheeyesandskin. 
—Complywithallapplicableregulationsforthedisposalofthebattery. 
—Batteriesconstituteadanger(electricalshock,burns).Theshort-circuitcurrentmaybevery 
high. 
—Precautionsmustbetakenforallhandling:removewatches,rings,braceletsandanyothermetal 
objects,usetoolswithinsulatedhandles. 
—Donotlaytoolsormetalpartsontopofbatteries.
ProductSafety
•Upstreamprotectionmustbeinstalledandbeeasilyaccessible.
•TheUPScanbedisconnectedfromtheACpowersourcebyopeningtheinputprotectivedevices.
•TheUPSmustbeconnectedtoanearbypowersourcethatiseasilyaccessible.
•NeverblocktheventilationopeningsoftheUPS.
•TheUPSmustbeinstalledinacontrolledenvironment.
SpecialPrecautions
•TheUPSconnectioninstructionsandoperationdescribedinthemanualmustbefollowedinthe
indicatedorder.
•CheckthattheindicationsontheratingnameplatecorrespondtoyourACpoweredsystemandto
theactualelectricalconsumptionofalltheequipmenttobeconnectedtotheUPS.
•Beforeandaftertheinstallation,iftheUPSremainsde-energizedforalongperiod,theUPS
mustbeenergizedforaperiodof24hours,atleastonceevery3months(foranormalstorage 
temperaturelessthan25°C).Thischargesthebattery,thusavoidingpossibleirreversibledamage.
Environment
Thisproducthasbeendesignedtorespecttheenvironment;ItdoesnotcontainanyChlorouorocarbon 
(CFC)orHydrochlorouorocarbon(HCFC).
UPSrecyclingattheendofservicelife;APCundertakestorecycle,bycertiedcompaniesandin 
compliancewithallapplicableregulations,allUPSproductsrecoveredattheendoftheirservicelife 
(contactyourAPCcertiedservicepartner).
Packing;UPSpackingmaterialsmustberecycledincompliancewithallapplicableregulations.
WARNING:Thisproductcontainslead-acidbatteries.Leadisadangerous 
substancefortheenvironmentifitisnotproperlyrecycledbyspecializedcompanies.
2
MGEGalaxy400040–75kV A208V
990–3964–001
Page 7

Specications
EnvironmentalRecommendations
RecommendedEnvironment20°to25°C(68°to77°F .);50%relativehumidity;computerroomorother
temperature,andhumidity-controlledenvironment
OperatingTemperature0°to30°C(32°to86°F)exceptbattery
Storage
HumidityUpto90%non-condensing(operating)
AltitudeSealevelto3,000feetwithoutderating
AcousticNoise69dBAatratedloadasmeasured3feetfromthefrontoftheUPScabinet.
ElectricalSpecications
-20°to40°C(-4°to113°F)exceptbattery
OutputPowerRating(0.8)PF
UPSV oltage(input/output)208/208208/208208/208208/208
Input/OutputRequirements& 
Frequency
InputPhaseRotationA,B,CClockwise
InputPowerFactor
InputCurrent102A127A166A191A
MaximumInputCurrent(atlowline 
—15%)
BypassCurrent111A139A180A208A
OutputCurrent111A139A180A208A
BatteryV oltage198VDCEndV oltage240VDCNominal282VDC
Max.BatteryCurrentatNominal 
BatteryV oltage(240VDCat100% 
load)
Max.BatteryCurrentatNominalEndV oltage(198VDCat100%load)
BatteryDisconnectCircuitBreaker 
Rating
Input,Bypass,andMaintenanceBypass 
(optional)SwitchRating
InputFuseRating
OutputIsolationCircuitBreakerRating
NOTE:InterruptedTransfertoBypassSource: 
Ifthebypasssourceisbeyondtheconditionsstatedbelow,theUPSwillmakeaninterruptedtransfer(notmore 
than100msec.induration).
1.Bypassvoltagegreaterthan+15%,—15%fromtheUPSratedoutputvoltage.
2.Bypassfrequencygreaterthan±2HzfromtheUPSratedoutputfrequency.
40kV A50kV A65kV A75kV A
Threephase,Threewire+N+G,60Hz
>.98
120A150A195A225A
Max.MaintenanceV oltage
157A196A255A294A
190A238A309A357A
250A400A
150A250A
200A300A
175A300A
990–3964–001
MGEGalaxy400040–75kV A208V
3
Page 8

MechanicalAssembly
GeneralDescription
TheMGEGalaxy4000istheworld’srstdatacentergradeUninterruptiblePowerSupplysystem 
designedspecicallyformid-rangeenterpriselevelapplications.TheMGEGalaxy4000family 
consistsofunitsavailableinpowerratingsfrom40-75KV A,andareoptimizedforcompatibilitywith 
nonlinearcomputer-typeloads.
ByincorporatingtheUltraHighAvailabilityT opology(UHAT),theMGEGalaxy4000familyofUPS 
systemsaredesignedtoprovidetheoptimallevelofreliabilityandtoreacttoanypowerdisturbance 
inaninherentlysafewaytoprotectthecriticalload.TheMGEGalaxy4000all-in-onedesign 
incorporateseveryfeatureintoonecompactcabinet,includingagraphicaluserinterface,powerfactor 
correctedinput,andcommunicationcardsthatsupportnetworkbasedpowermanagement.
TheMGEGalaxy4000UPSanditsauxiliaryequipmentaredesignedforinstallationinaroomwhere 
humidityandtemperaturecanbecontrolled.
TheMGEGalaxy4000UPSandauxiliaryequipmentislistedforsafetybyUnderwritersLaboratories, 
Inc.(UL)underULStandard1778–UninterruptiblePowerSystems;andalsolistedbyUnderwriters 
Laboratories(CUL)underCanadianStandardsAssociation(CSA)standardC22.107.
4
MGEGalaxy400040–75kV A208V
990–3964–001
Page 9

MajorComponents
RectierConvertsACinputvoltagetoDCvoltage.TherectierusesIGBT(Insulated
GateBipolarTransistor)powertransistorsandaPulseWidthModulated(PWM) 
techniquetoprovideinputpowerfactorcorrectionandtominimizeanyharmonic 
reectedontotheinputpowerlines.
Inverter
StaticSwitchAutomaticallysuppliestheattachedloadfromthebypasssourcewhentheinverter
BatterySystem
SingleLineDiagram
Duringnormaloperation,theutilitypower(Maininput)issuppliedtotheUPSrectier.Therectier 
convertstheACpowertoDCthatissuppliedtotheinverter.TheinverterconvertstheDCvoltageto 
three-phaseregulatedACvoltage,whichissuppliedtotheattachedload.
Duringpowerfailureconditions,theinverterissuppliedbythestoredenergyinthebatterysystem,and 
theloadispoweredcontinuouslywithnointerruption.
ConvertsDCvoltagefromtherectierorfromthebatteriesintoACoutputvoltage 
tomaintaintheattachedload.ThismoduleusestheIGBTtechnologytoprovide 
digitalpowerquality.
isoff.
Storesenergyforutilizationbytheinverterandattachedloadintheeventthatutility 
ACpowerislostorisofunacceptablequality.
TheMGEGalaxy4000UPSisdesignedforinternaloperationof208V ACinputandoutput.External 
batteries,andanoutputdistributionpanelmaybecontainedinauxiliarycabinetssimilarindesignto 
theMGEGalaxy4000cabinet.Batteriesorexternalmaintenancebypasscircuitbreakersmayalsobe 
containedinthirdpartycabinetsorwallmountedunits.
RefertoAppendix“SingleLineDiagram”.
StandardCabinets
TheMGEGalaxy4000individualcabinetdimensionsare:
•UPScabinet:72.1in(1831mm)Hx33.5in(851mm)Wx35.6in(904mm)D.
•Externalbatterycabinet:72.1in(1831mm)Hx26.5in(673mm)Wx33.5in(851mm)DOR–
•Externalbatterycabinet:72.1in(1831mm)Hx33.5in(851mm)Wx33.5in(851mm)D.
•Distributioncabinet:72.1in(1831mm)Hx19.5in(495mm)Wx33.5in(851mm)D.
TheUPScabinetisdesignedtoprovidefortopandbottomentryoftheutilitypowerfeed.Anoutput 
voltageof208V ACisstandardwiththeMGEGalaxy4000anddoesnotrequireanyadditional 
cabinetry.ThecompletelistofadditionalcabinetsthatcouldbeincludedwithyourMGEGalaxy4000 
systemare:externalmaintenancebypasswallcabinet,externalbatterycabinet,anddistributioncabinet.
Theexternalbatterycabinetsareprovidedintwodifferentcabinetsizesdependinguponthebatterytype 
selected.Uptofourbatterycabinetsmaybeprovided.Thecabinetsmaybeinstalledadjacenttothe 
UPSorremotelyandaredesignedfortopandbottomentry.Thedistributioncabinetprovidesa42pole 
panelboard,withanoptionalsubmaincircuitbreaker.Thecabinetisdesignedfortopandbottomentry.
990–3964–001
MGEGalaxy400040–75kV A208V
5
Page 10

PreparationforOperation
SeveralitemsmustbeconsideredwhenpreparingtheMGEGalaxy4000UPSsystemforoperation.
1.TheUPScabinetanditsauxiliarycabinetsmustbearrangedintherequiredcongurationto
insurethattheinterconnectioncablesarelocatedinthecorrectadjacentcabinets.
2.Thecabinetsmustbeinalocationthatprovidesforproperairowandheatrejection.
3.TheroominwhichtheMGEGalaxy4000UPSsystemislocatedmustmaintainenvironmental
conditionswithinrecommendedtolerances.
4.Allelectricalconnectionsmustutilizethetoporbottomconduitentriesprovided.
Thefollowingsectionsdiscusstheseitemsinmoredetail.
CabinetPlacement
ThecompleteUPSsystemmayconsistofonetothreecabinetsdependingontheoptionsselected.The 
UPScabinetallowssystemoptionstobeselectedbasedontheapplication.WhenfacingtheMGE 
Galaxy4000UPSfromthefront,thestandardarrangementprovidesforanyexternalbatteriestobe 
locatedontherighthandside,andthedistributioncabinettobelocatedonthelefthandsideoftheUPS.
A
Airexhaust
B
Displaypanel
C
Allow36”topclearanceforfanexhaustand 
servicemaintenance
D
Levelingjacks
E
Casters
6
F
Externalbatterycabinet(optional)
G
UPScabinet 
MGEGalaxy4000
H
Frontview
I
Distributioncabinet(optional)
J
Airintake
MGEGalaxy400040–75kV A208V
990–3964–001
Page 11

HeatRejection
TheMGEGalaxy4000UPScabinetsgenerateheatandexhaustairthroughthetopportionofits 
enclosures.Airintakeisthroughthebottomandfrontofthecabinet.Allothercabinetsareconvection 
cooled.ToassistyouinplanningforyourHV ACneeds,heatrejectiondataisprovidedintablebelow. 
Thecabinetairowandrecommendedtopclearanceareprovidedin“CabinetPlacement“section. 
TheMGEGalaxy4000isintendedforuseinanenvironmentwherecontroloftemperatureand 
humidityisprovided.
HeatRejectionData@208/208V AC
UPSCabinet40kV A50kV A65kV A75kV A
BTU/Hr14,90018,70024,20028,000
Note:Toprovideforadequateventilation,aminimumof36inchesclearanceshouldbe
maintainedabovethetopoftheMGEGalaxy4000cabinet.
CabinetClearances
TheMGEGalaxy4000UPScabinettopclearanceof36inchesforfanexhaustisrecommended. 
Additionally,adequatespacemustbeincludedinthefrontandtopofeachcabinet(approx.36inches) 
toallowthedoors/panelsofthecabinettobeopenedforserviceandmaintenanceprocedures.
Foraninstallationwhereseismicrequirementsmustbemet,additionalclearanceatthesideofthe 
cabinetmustbeincludedtoaccommodatetheseismicanchors.ContacttheCustomerSupportCenter 
toorder.
PreparationforStorage
Iftheequipmentistobestoredpriortoinstallation,itshouldbestoredinacool,dry,well-ventilated 
locationthatisprotectedagainstrain,splashingwater,chemicalagents,etc.Theequipmentshould 
becoveredwithatarpaulinorplasticwrappertoprotectitagainstdust,dirt,paint,orotherforeign 
materials.Seethesectionofthismanualtitled"EnvironmentalRecommendations"forrecommended 
storageenvironmentalconditions.
Note:Batteriesshouldbestorednolongerthanthree(3)monthsat25°C(77°F)orlower 
priortorecharging.Exceedingtherecommendedambientstoragetemperaturewill 
reducebatteryback-uptimeandmayadverselyaffectbatterylife.
990–3964–001
MGEGalaxy400040–75kV A208V
7
Page 12

PreparetheInstallation
ConduitPlateLocationsforBottomEntry
CableentrythroughthebottomisthestandardpreferreddesignfortheMGEGalaxy4000UPS 
cabinet.Thebottomentryconduitplateprovidesspaceforuptove(5)separateconduitentries.The 
plateissecuredwithscrewswhichshouldberetainedfortheconduitplateafterthepowerconnections 
aremade.Seeillustrationbelowforthelocationofthebottomentryconduitplates.
A
B
C
Cableentryplate
Airintake 
Donotblock
Seismicbracket(optional)(4PLCS)
8
MGEGalaxy400040–75kV A208V
990–3964–001
Page 13

ConduitPlateLocationsforTopEntry
TheUPScabinetfortheMGEGalaxy4000iscapableofacceptingpowerinputandoutputcables 
throughatopentry.Theconduitplateonthetopofthecabinetprovidesprovisionsforknockoutsfor 
conduitandissecuredtothecabinetwithscrews.
A
B
C
D
10x20.5conduit
Airexhaust 
Donotblock
26Wbattery 
(33Wbattery)
9x20.5conduit
E
F
G
UPS
Distribution
(16)x1.125K.O. 
(34).857K.O
990–3964–001
MGEGalaxy400040–75kV A208V
9
Page 14

ConnectACInputandPowerCables
InstallationSteps
APCrecommendscorrectinstallationvericationandunitstartuptobeperformedbyanAPC 
certiedServicepartner .
Caution:SchedulingoftheAPCcertiedServicepartnertypicallyshouldbedone
7to10daysbeforetheyarerequiredon-site.IfthestartupoftheUPSiscriticalto 
maintainingyourschedule,pleasecontacttheCustomerSupportCenterforassistance.
Toinsureasuccessfulinstallation,eachofthese(5)stepsshouldbefollowedintheircorrect 
sequence.NotethatanyunauthorizedinstallationmaycausedamagetotheUPS(s).
Firststepsbyanon-sitequaliedTechnicalEngineer
1.Unpackandpositiontheunit.
2.Connectthemain(utility)power.
3.Connecttheoutputtotheload.
FinalstepsbyanAPCcertiedServicepartner
4.CallAPCandwaitfortheAPCcertiedServicepartnertoapprovetheinstallation.
5.TheAPCcertiedServicepartnernalizestheinstallationandthestartupprocess.
ElectricalConnections
Caution:Onlyanauthorizedelectricalprofessionalshouldaccesselectricalconnections. 
Asevereshockhazardexists.
TheONLYuserserviceableitemsintheMGEGalaxy4000unitare:
A
B
C
D
Themainandbypasspowerconnections.
Theloadconnection.
Anycableconnectiontoexternalorauxiliarymodules.
Thecommunicationcardoptions.
Theaccessmethodforconnectionsmadetothecommunicationcardsisclearlyseenwhenthefront 
rightdoortotheMGEGalaxy4000unitisopened.However,accesstothemain,bypassandload 
connectionsismadethroughtheremovalofthesafetypanellocatedinthelowerrightoftheMGE 
Galaxy4000(withtherightdooropen).Thissafetypanelisremovedbyrstremovingthescrews 
securingthepanel.Itcanthenberemovedbyliftingthesafetypanelawayfromtheunit.
Caution:Beforemakinganyelectricalconnections,verifythatallbatterydisconnect 
circuitbreakers(QF1)areinthe"off"position.Customer-suppliedupstreamprotective 
devicesanddistributioncircuitsshouldbeOFF .
10
MGEGalaxy400040–75kV A208V
990–3964–001
Page 15

TypicalPowerConnections
A
BReararea
C
D
E
F
G
H
I
J
KBX
L
M
Frontview
FrontP
TB4QA
TB1
TB2SC
Ground
Neutral 
Negative 
Positive 
Busbars
TB4Control
A
C
A
NB
OC
RB
T
U
V
W
Y
Z
OutputTB2
TB3Bypassinput
TB1Maininput
Ground
Neutral
BatteryPositive
BatteryNegative
Busbars
990–3964–001
MGEGalaxy400040–75kV A208V
11
Page 16

UPSConnections
Electricalconnectionsandcabinetinterconnectionwillvarydependinguponthecongurationand 
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(optionalconguration),jumpercablesareprovidedfrom 
terminalblocksTB1toTB3.
BypassACInputConnections(optional)
ThebypassACinputcablesareterminatedatthebypassinputterminalblock(TB3).Thisoption 
providesaseparateACinputsourceforbypassoperation.See“TypicalPowerConnections“.
12
MGEGalaxy400040–75kV A208V
990–3964–001
Page 17

ConnectBatteryCables
BatteryConnections
Theconnectionstobemadearethepositive,negative,andgroundcablesfromthebatterycabinetto 
theUPS.Thebatterycablesareterminatedatthepositive,negative,andgroundbusbars.See“Typical 
PowerConnections“.
BatteryControlConnections
Thebatterycontrolconnectionsaremadewiththebatterycontrolcablesfromtheexternalbattery 
cabinettotheUPSterminalblockTB4-1toTB4-4.See“TypicalPowerConnections“.
990–3964–001
MGEGalaxy400040–75kV A208V
13
Page 18

ConnectACOutput
ACOutputConnections
Theconnectionstobemadearethethreephases,neutral,andgroundcablesfromtheloadtothe 
UPS.Theoutputcablesareterminatedattheoutputterminalblock(TB2).See“TypicalPower 
Connections“.
ExternalMaintenanceBypassControlConnections 
(optional)
Theexternalmaintenancebypass(MBP)controlconnectionsaremadewiththeMBPcontrol 
cablefromtheexternalMBPtotheUPSterminalblockTB4-9toTB4-10.See“TypicalPower 
Connections“.
WARNING:ThesewirescarryHIGHVOL TAGE120V AC.
AccessoriesOutlets
The120V ACoutletstobeusedonAPCauthorizedaccessoriesonly .Theoutletstotalcurrentnotto 
exceed2amps.
Caution:ImproperuseofoutletsmaycausefailureordamagetoUPS.
14
MGEGalaxy400040–75kV A208V
990–3964–001
Page 19

ConnectRemoteEmergencyPowerOff
RemoteEmergencyPowerOffConnections
ThecontrolconnectionsareavailableforRemoteEmergencyPowerOff(REPO)througha 
customer-supplied(normallyclosed)pushbutton.WithREPOconnected,thejumperontheREPO 
terminalblocksmustberemoved.See“TypicalPowerConnections“.
A.RemovethejumperfromterminalblockTB4locatedacrossterminals7and8.
B.ConnecttheremoteemergencypoweroffNCcontacttoterminals7and8.
Caution:TheUPSisalsoequippedwithalocalEmergencyPowerOff(EPO)buttonon 
thefrontoftheUPScabinet.ThisswitchesallUPScriticalpoweroff.EPOorREPO 
shouldbeusedforemergencyonly!
990–3964–001
MGEGalaxy400040–75kV A208V
15
Page 20

ConnectRelayCommunicationCard
RelayCommunicationCardContacts
Therelaycommunicationcardcontainssixprogrammabledrycontactoutputsandtwoprogrammable 
dryinputsandisstandardontheMGEGalaxy4000.Theinputsandoutputsarefactoryprogrammed 
accordingtofunctionslistedintablebelow.
Inputs
1.AUPSON
1.BUPSOFF
OutputsFactorySettings
1.1
1.2
1.3
1.4
1.5
1.6
FactorySettings
Generalalarm
Batteryfault
LoadonUPS
Loadonautomatic 
bypass
Loadonbatterypower
Lowbatterywarning
Options(availableonbothcontacts)
•Roomtemperaturefault
•Transfertobypassdisabled
•TransfertobypassdisabledifbypassACsourceoutof
tolerance
•DesynchronizeUPSfrombypassACsource
Options(availableonallcontacts)
•Overload
•PFCFault
•Inverterfault
•Chargerfault
•Automaticbypassfault
•BypassACsourceoutoftolerance
•Battery-temperaturefault
•Emergencypoweroffactivated
•Batterycircuitbreaker(s)open
•Phase-sequencefaultonnormalorbypass
•ACsource
•Blownfuse(s)
•TransfertobypassACsourcedisabled
•OperationinECOmode
•UPSonbypassACsource
Theoutputcontactsnumbersforasecondrelayboardinstalledwillbe2.1to2.6.Contactsareof 
theNO(normallyopen)type.Fordrycontactssettingsee“MGEGalaxy400040–75kVA208V 
OperationManual—UserConguration—SettingsScreen“.
Caution:Isolateandlock-outallpowersourcesforthiscardbeforemakingconnections. 
NeverconnectELSV(extralowsafetyvoltage)andnon-ELSVcircuitstothedifferent 
outputsofthesamecard.
16
MGEGalaxy400040–75kV A208V
990–3964–001
Page 21

1
2
3
4
5
6
A
B
1
2
3
4
5
6
A
B
1
2
2
3
4
6
5
5
4
3
1
2
2
7
6
7
990–3964–001
MGEGalaxy400040–75kV A208V
17
Page 22

RelayCommunicationCardConnections
Referto“RelayCommunicationCardContacts“forrelaycommunicationcard,coverandhardware 
details.See“MGEGalaxy400040–75kVA208VOperationManual—Operation—Preparingfor 
Startup“forcommunicationcardportlocationintheunit.
1.Removethecover“3”securedbythescrews“1”.
2.Runthecommunicationcablesthroughthecableentryholes“4”.
3.Connecttheconductorstotheinput“6”andoutput“5”terminalblocks(referto“Relay
CommunicationCardContacts“foraconnectionexample.)
4.Putthecoverbackinplaceandsecureitwiththescrews“1”.
5.Tightenthescrews“7”toclampthecables.
6.Indicatethelocationsofthepowersourcesonthelabels.
7.Insertthecardinitsslot.
8.Securethecardwithtwoscrews“2”.
CharacteristicsofOutputContacts
RelayTypeNormallyOpen
Max.voltage
Max.current
Cable
250V AC,30VDC
2A
4x0.93mm,6.6±0.3mm
CharacteristicsofInputContacts
Switchedvoltage
Consumption
Cable
Outputalarmsarealwaysactivatedontheconditionsstatedunlessrequestedbycustomertooperateon 
otherconditions.
InputcontactsaredesignedforremoteUPSoperation.Useextremecautionwhenusingthesecontacts 
soasnottoendangerpersonsorcompromisetheUPSload.
5VDC
10mA
4x0.34mm,5±0.5mm
18
MGEGalaxy400040–75kV A208V
990–3964–001
Page 23

AppendixSingleLineDiagram
AUPS
BBatteryN
C
D
E
F
G
H
I
J
K
L
Distribution
SuppliedbyMGE&Connected 
bycustomer
Tocriticalload
42PolePanelboard
Output(optional)
Output
(optional)
(optional)
BypassStaticSwitch
BypassInputTB3
M
O
PInputFuses
Q
R
S
T
U
V
W
MainInputTB1
OptionalBypassInput208YV AC
MainInput280YV AC
InputStaticSwitch
PFCBoostRectier
Inverter
OutputStaticSwitch
BatteryStaticSwitch
BatteryCharger
SuppliedbyMGE&Connectedbycustomer(adjacent 
version) 
Supplied&connectedbycustomer(standaloneversion)
990–3964–001
MGEGalaxy400040–75kV A208V
19
Page 24

WorldwideCustomerSupport
Customersupportforthisoranyotherproductisavailableatnocharge:
•ContacttheCustomerSupportCenterbytelephoneore-mail.Forlocal,country-speciccenters:
gotowww.apc.com/support/contactforcontactinformation.
©APCbySchneiderElectric.APCandtheAPClogoareownedbySchneiderElectricIndustries 
S.A.S.,AmericanPowerConversionCorporation,ortheirafliatedcompanies.Allothertrademarks 
arepropertyoftheirrespectiveowners.
990–3964–001
December
2010