APC EPW9 User Manual

Installationand
Operation

EmergencyPowerOffSystem

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TableofContents

IMPORTANTSAFETYINSTRUCTIONSSAVETHESE

INSTRUCTIONS...............................................................................................................1

SafetyInstructionsforNorthAmerica...................................................................1

SafetyInstructionsforEurope,MiddleEast,andAfrica...................................2

Specications...................................................................................................................3

Overview..............................................................................................................................4

EmergencyPowerOffSystem..................................................................................4

EPOBoxComponents................................................................................................4

Installation..........................................................................................................................6

PreparetheEPO...........................................................................................................6

MounttheEPO(RunningConduitsorCablesAlongtheWall).......................6

MounttheEPO(runningconduitsorcablesbehindthewall).........................7

ConnectDevicestotheEPOBox............................................................................9

MountAdditionalEPOBoxes...................................................................................10

CascadeMultipleEPOBoxes...................................................................................10

CascadetheAPCDeviceswithCAT-5Cables............................................................11

CascadetheAuxiliaryDevicewithWirePairs...........................................................12

DirectWiringAlternative............................................................................................12

VerifyConnectionsateachEPOBox.....................................................................12

Operation............................................................................................................................14

EngagetheSystem......................................................................................................14

ResettheEPOSystem................................................................................................14

ResettheEquipment...................................................................................................15

WiringDiagram................................................................................................................16

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IMPORTANTSAFETYINSTRUCTIONS SAVETHESEINSTRUCTIONS

Thismanualcontainsimportantinstructionsthatshouldbefollowedduringinstallation,operation,and
maintenanceoftheEPOsystem.

SafetyInstructionsforNorthAmerica

WARNING:Onlycertiedelectriciansmayinstallthesystemandthewiringtothe
productsITcontrols.

WARNING:Assemblyhasnotbeenevaluatedforemergencylifecriticalapplications,
butisintendedforemergencyequipmentpoweroff.

Note:WiringfromthesystemtotheproductsITcontrolscaneitherbeinstalledinconduits

orinstalledwithoutconduitsifthewiresareinaccordancewithArticle725oftheNational
ElectricalCode(NFPA70)andSection16oftheCanadianElectricalCode(C22.1).

Caution:OnlyClass2circuitsrated30Vorlesscanbeconnectedtoterminals1–8.Class2
circuitsaredenedinArticle725oftheNationalElectricalCode(NFP A70)andSection16
oftheCanadianElectricalCode(C22.1).AClass2circuitisasourcehavinglimitedvoltage
andenergycapacityasfollows:

A.IfanInherentlyLimitedPowerSource,voltageislimitedto30V ACor30VDC,and

energyislimitedto8A.

B.IfnotanInherentlyLimitedPowerSource,voltageislimitedto30V ACor30VDC,

energyislimitedto250V A,andcurrentislimitedto1000/Vmax.Thefuseislimited
to5Aifmaximumvoltageis20V ,or100/Vmaxifvoltageisgreaterthan20V
butlessthan30V .

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SafetyInstructionsforEurope,MiddleEast,andAfrica

WARNING:Onlycertiedelectriciansmayinstallthesystemandthewiringtothe
productsITcontrols.

WARNING:Assemblyhasnotbeenevaluatedforemergencylifecriticalapplications,
butisintendedforemergencyequipmentpoweroff.

Note:WiringfromthesystemtotheproductsITcontrolscaneitherbeinstalledinconduits

orinstalledwithoutconduitsifthewiresareinaccordancewithIEC/EN60364-5-52or
equivalentlocalelectriccode.

Caution:EPOcanbeachievedwitheitheracontactclosureorapplicationofanexternal
24VACor24VDCfromaSELVorPELVsource.Itisimportanttonotethathazardous
voltagefromthemainsvoltagemustbeisolatedfromthecontactclosureor24VAC,24
VDC.TheEPOcircuitcontactclosure,the24V AC,orthe24VDCareconsideredSELV
circuitsasdenedinEN60950“SafetyofInformationTechnologyEquipment”orPEL V
circuitsasdenedinIEC60364-4-41“ElectricalInstallationsofBuildingsProtectionfor
Safety—ProtectionAgainstElectricShock.”SEL VisanabbreviationforSafetyExtraLow
V oltage.PEL VisanabbreviationforProtectiveExtraLowV oltage.SELVandPEL V
circuitsareisolatedfromthemainsthroughasafetyisolatingtransformer,anddesignedso
thatunderisolatedfromthemainsthroughasafetyisolatingtransformer,anddesignedso
thatundernormalconditionsthevoltageislimitedto42.4Vpeakor60VDC.

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Specications

Electrical

Input/Output

V oltage

Current1Aat24VDC

Frequency

Circuits(qty)

Contactstate

Physical

Dimensions(W×L×D)

EPObox226×251×66mm(8.9×9.9×2.6in)

Shipping305×305×140mm(12×12×5.5in)

Weight

EPObox2.9kg(6.4lb)

Shipping3.1kg(6.9lb)

24VDC

48VDC/240VAC(Externalcircuit)

1Aat48VDC(Externalcircuit)

50/60Hz

9

NormallyOpen(NO)

MountingSurfacemount

ConnectionRemovablepanelsinrear,13mm(½in)and6mm(¾in)knockoutsontopand

bottom

PushbuttonStandard,22mmmetallicbody;40mmmushroomhead;Push/pull

Wireconnections0.10to0.75mm²(24to18AWG)wiregroundstudfor#8ringlug

Environmental

Temperature

Humidity5to95%,non-condensing

Elevation3000m(10000ft)

–5to45°C(23to113°F)

Compliance

StandardsNFPA70,NFP A75,NECArticle645,29CFR1910.36,29CFR1910.306

Approvals

UL,C-UL,CE

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Overview

5

6

7

8

9

:

=

;

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EmergencyPowerOffSystem

TheEmergencyPowerOff(EPO)Systemconsistsofoneormorewall-mounted,push-buttonEPOboxes.
EachEPOboxprovidesasinglepointofequipmentshutdownforuptoeightAPCdevicesandone
third-partydevice(suchasanupstreambreaker),usingNormallyOpen(NO)contactclosureconnections.
AnEPOboxcanbecascadedwithotherEPOboxestosupportmultiplepointsofequipmentshutdown.

Note:AlthoughtheEPOisdesignedspecicallyforAPCproducts,thesystemcanbeused
fortrippinganydevicesthatfallwithinitsparameters.See“Specications“toconrm
properapplication.InstalltheEPOaccordingtotheinstructionsinthismanual.

EPOBoxComponents

1

2

3

4

5

6

7

8

9

Flag

Button

Shield

Knockouts

Mountingholes

Blankingpanels

Wireanchors

Auxiliarydevice
terminal

Deviceterminalblock

10

11

12

13

4

Cascadingjacks

Wiringcheckpoints

Groundstud

Cableclamps

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Note:

Wiring,conduits,andmountinghardwarearenotprovided.

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Installation

PreparetheEPO

1.OpentheEPOSystemboxbyremovingthe

screwsontheside.Keepthescrewsforuse
afterthesystemisinstalled.Theboxwillnot
closesecurelywithoutthescrewsinplace.

2.Mountthesysteminareadily-accessiblearea,

onawallneartheprincipalentrancedoors,
accordingtoNECArticles645.10and645.11,
IEC/EN60354-5-537,orequivalentlocal
regulation.Therearetwodifferentprocedures
formountingthesystem,dependingon
whetheryouarerunningconduits(orcables)
alongthewallorbehindthewall.

Note:Ifnotusingconduits,runthecablesfromtheconnecteddevicesorthecascadedEPO
boxesdirectlytotheEPOusingshieldingtroughsandcableladders.

MounttheEPO(RunningConduitsorCablesAlong theWall)

1.Fastenfour6.35mm(¼in)screwsthroughthe

fourmountingholesateachcorneroftheEPO
boxandintothewall.

2.Runtheconduits(orcables)fortheconnected

devicestotheEPObox.Ifusingconduits,
itwillcontainallwiringfromtheconnected
devicesandallcascadingcables.The
knockoutsinthetopandbottomoftheEPO
boxaccept13mm(½in)and19mm(¾in)
conduitsorclustersofcables.Removethe
knockoutsrequiredforinstallation.

Note:Whenplanningconduits
requirements,considerthattwo
cascadingcableswilltin13mm
(½in)conduitsandfourcascading
cableswilltin19mm(¾in)
conduits.See“CascadeMultiple
EPOBoxes“formoreinformation.

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3.Installanappropriatettingwithalock-nut

One120mm(4in)squarejunctionbox

Two120mm(4in)squarejunctionboxes

Oneswitchboxupto4-ganginsize

foreachknockoutused.

4.Connectconduitstothettings.

Note:Ifnotusingconduits,runthe
cablesthroughtheknockoutdirectly .

MounttheEPO(runningconduitsorcablesbehind thewall)

1.Installajunctionboxoraswitchboxbehind

thewall.TheEPOboxwillfastendirectlyto
thebox.Useoneoftheoptionsabove.

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2.Runtheconduits(orcables)fromthe

connecteddevicestothejunctionorswitch
box.Ifusingconduits,itwillcontainallwiring
fromtheconnecteddevicesandallcascading
cables.Removetheknockoutsrequiredfor
installation.

Note:Whenplanningconduit
requirements,considerthattwo
cascadingcableswilltin13mm
(½in)conduitsandfourcascading
cableswilltin19mmcascading
cableswilltin13mm(¾in)
conduits.See“CascadeMultiple
EPOBoxes“formoreinformation.

3.Installanappropriatettingwithalock-nut

foreachknockoutused.

4.Connecttheconduitstothetting.

Note:Ifnotusingconduits,runthe
cablesthroughtheknockoutdirectly .

5.Removeoneorbothoftheblankingpanels

coveringthewindowinthebackofthebox,
asrequired.

6.SecuretheEPOboxdirectlytothejunction

boxorswitchboxwiththeappropriatenumber
of6-32screwsaroundtheaccesswindow.

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7.ReinforcetheEPOboxwith6mm(¼in)

screwsinthecornermountingholes.

Note:Thetoptwo6mm(¼in)
mountingholesmaybeblockedby
somejunctionboxes.Inthisinstance,
useonlythebottomtwo6mm(¼in)
mountingholesforreinforcement.

ConnectDevicestotheEPOBox

ConnectAPCdevicestoterminals1–8.Connectanauxiliarydevicetoterminal9.Connectonlyone

0.10–0.75mm²(24–18AWG)wirepairtoeachterminalblock.

1.AttachEPOcircuitstoeachdeviceaccording

tothespecicinstructionsforthatdevice.Use
theNormallyOpen(NO)contactoption.

2.Runasuitable0.10–0.75mm²(24–18A WG)

wirefromthedevicestoterminals1–8onthe
EPOboxterminalblock.Ifyouareusing
conduits,runthewiresthroughtheconduitsto
theterminal(s).Maketheconnectionstothe
terminalblockinnumericalorder(terminal1,
andthenterminal2,etc.).

3.Runasuitable0.25–0.10mm²(22–18A WG)

wirefromthecontactclosurepointsforany
auxiliarydevicetoterminal9ontheEPObox
terminalblock.Ifyouareusingconduits,run
thewiresthroughtheconduitstotheterminal.

Note:Theauxiliarycircuitisrated
1Aat48VDC/240V AC.

4.Ifnecessary,securethewiresinsidethebox

usingthereleasablewireties(provided).

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5.ConnectasuitablegroundorPEwiretothe

#8-32groundstudinthelowerleftcornerof
theEPObox.

MountAdditionalEPOBoxes

TherearetwoalternativesforwiringadditionalEPOboxes.Eithercascadetheboxesonlytowiredevices
toonebox(see“CascadeMultipleEPOBoxes“),orwiredevicesdirectlytoeachEPObox(see“Direct
WiringAlternative“).

CascadeMultipleEPOBoxes

WhencascadingEPOboxes,connectawirepairfromeachdevicetotherstEPOboxaccordingtothe
procedurein“ConnectDevicestotheEPOBox“.JumperthesubsequentEPOboxeswithcascading
cables(standardCAT -5cable)—thisprocedurewilljointheEPOboxesinparallel.

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APC

APC

APC

APC

APC

APC

APC

APC

1

3

2

4

Input

Output

EPO
PAIRS1 –4

EPO
PAIRS5 –8

EPO
PAIRS1 –4

EPO
PAIRS5 –8

Box2

Box1

Note:Therecommendedmaximumtotaldistanceofwire,torunpercircuitis300m
(1000ft).

CascadetheAPCDeviceswithCAT-5Cables

ConnecttheCAT-5cablestothejacksinsidetheEPObox.EachcablecansupportuptofourAPCdevice
wirepairs.FollowtheseguidelineswhenconnectingCA T -5cables:

•Useonlythebottomjacks(3and4)ifcascading

four(4)orfewerdevices.

•Useboththebottomandthetopjacks(1,2,3

and4)ifcascadingve(5)ormoredevices.

•Connecttheoutputjacks(1and3)oftherst

EPOboxtotheinputjacks(2and4)ofthe
secondEPObox.

•Continueuntilallboxesareconnected.

•Ifnecessary ,usethewhitecableclampsto

securetheCA T-5cables.

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CascadetheAuxiliaryDevicewithWirePairs

1

2

Auxiliary

Non-InfraSt ruXur e

Breaker

Device

Device

Device

EPO Box 1 EPO Box 2

APC

APC

APC

1.Afterwiresarerunfromauxiliarydevice(1)

toterminalblockposition9,runasecondset
ofwires(2)fromterminalblockposition9on
therstEPOboxtoterminalblockposition9
onthesecondEPObox.

2.Continueuntilallboxesareconnected.(See

thediagramin“CascadeMultipleEPO
Boxes“forreference.)

DirectWiringAlternative

IftheAPCdevicesarecentrallylocatedbetweenexitdoors,itmaybemorepracticaltorunseparatewire
pairsfromthedevicestoeachEPObox.Thiswiringmethodrequiresterminalblockconnectionsinevery
EPObox,ratherthancascadingcablesbetweenboxes.ConnectwirepairsfromtheNormallyOpen(NO)
contactsonthedevicestoeachEPObox.Becausethisalternativeresultsinmultiplewirepairsatthe
terminalsofthedevices,APCdoesnotrecommendusingitwithmorethanthreeEPOboxes.

VerifyConnectionsateachEPOBox

1.Verifythatthewiringiscorrectbeforeattachingcriticalloaddevicestoyourdevices:

A.WiththedevicespoweredON,useasmalltooltopresseachcheckpoint,oneatatime.

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Note:IfanAPCFMSeriesPrecisionAirConditioningSystemconnectedtotheEPObox,
pressingthecheckpointwillshutofffunctionalitytotheunit,buttheunitwillstillbe
powered.

B.Afterverifyingthewiring,closethesystembox,makingsurenottopinwiresordisturb

connections,andsecurewiththescrews,previouslyremovedwhenopeningthebox.

C.Asanaltest,applypowertoallAPCdevicesandauxiliarydevices,andpresstheEPO

button.AllconnecteddevicesshouldpowerOFFimmediately.Repeatthisnaltestatevery
EPOboxinthesystem.

WARNING:Pressingthecheckpointwillshutdowntheconnecteddeviceandany
loaditissupporting.

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Operation

1

2

EngagetheSystem

1.LifttheshieldonanyoftheinstalledEPO

boxesandpressthebutton.Aredagwill
dropdownfromthebox,providinganeasy
visualmarkastowhichEPOboxinyourroom
hasbeenactivated.

ResettheEPOSystem

1.Pullthebuttontowardsyou(1)andpushthe

agupuntilitcatches(2).Pullingthebutton
doesnotbringpowerbacktotheconnected
equipment;itonlyresetstheEPOsystem.
Closetheshieldafterresettingthesystem.

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ResettheEquipment

Applypowertothedevicesaccordingtotheproceduresforeachdevice.

Note:Refertotheoperationmanualincludedwitheachdeviceforspecicinstructionson
howtoapplypowertothedevice.

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WiringDiagram

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WorldwideCustomerSupport

Customersupportisavailableatnochargeviae-mailortelephone.Contactinformationisavailableat
www.apc.com/support/contact

©SchneiderElectric.APCandtheAPClogoareownedbySchneiderElectricIndustriesS.A.S.or
theirafliatedcompanies.Allothertrademarksarepropertyoftheirrespectiveowners.

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