Mersen Surge-Trap User manual

Instructions
INSTRUCTIONS 270353
Surge-Trap®Type 1 SPD for NEMA Type 4X Applications
DANGER
Hazard of Electric Shock, Burn or Explosion
• Thisequipmentmustbeinstalledandservicedonlyby
qualiedelectricalpersonnelinaccordancewithnational
andlocalelectricalcodes.
• Turnoffallpowersupplyingthisequipmentbefore
workingonequipment.
• Alwaysuseaproperlyratedvoltage-sensingdeviceto
conrmpowerisoff.
• Replacealldevices,doorsandcoversbeforerestoring
powertothisequipment.
• Donotapplypetroleum-basedproductsto
non-metallicparts.
Improperinstallationormisapplicationofthesedevices
mayresultinseriousinjurytotheinstallerand/ordamage
toelectricalsystemorrelatedequipment.Protectiveeye
wearandclothingshouldbewornwheneverworking
aroundhazardousvoltages.
Failuretofollowtheseinstructionscouldresultinserious
injuryordeath.
CAUTION
• DonotattempttoopenortampertheSurge-Trap
deviceinanywayasthismaycompromiseperformance
andwillvoidthewarranty.
• Meggerandhi-potentialtestsmaydamagethedevice.
• Disconnectallpowersupplyingtheequipmentand
isolatetheSurge-Trapdevicebeforetesting.
• Priortoinstallation,conrmthattheSurge-Trapisrated
forthecorrectvoltage,currentandfrequencyequivalent
totheapplication.
• ForuseinNEMAType1through4XApplications.
PANEL MOUNT AND WIRING
1. Turnoffallpowersupplyingthisequipment.
2. PanelMount:Punchouta¾″enclosureknockoutfrom
thepanelorthemountinglocationascloseaspossible
tothewherethewireswillterminate.Whereothertypes
ofmountingarerequired,pleaseconsultthefactory.
3. Inserta¾″closenippletotheMyersHubprovidedand
attachedtotheSurge-Trap®SPD.InsertSPDwires
carefullythroughtheknockouthole.Tightena¾″steel
conduitlocknuttosecuretheSPDtotheenclosure(as
showninFigure1).
4. Connectthewiresasshownintheappropriatewiring
diagram.
INSTALLATION Figure1PanelMount
USAT9784626662F9784620181[email protected]
374MerrimacStreet,Newburyport,MA01950
CANADAT4162529371F4162526572[email protected]
88HornerAvenue,Toronto,Ontario,CanadaM8Z5Y3
ep-us.mersen.com ep-ca.mersen.com
5. OvercurrentProtection:Type1SPDsareULListed
andtestedtobeself-protecting.Theydonotrequire
upstreamprotectionaccordingtoUL1449andSection
285oftheNEC.However,werecommendanupstream
disconnectorbreakerformaintenanceandsafety.
Manyswitchesandcircuitbreakershavelimitations
regardingmorethanonewireinaconnector.Breaker
manufacturerscanprovideinformationonthelimitations
oftheiravailableterminals.Whereadditionalwires
areprohibitedunderthesameterminal,manytimes
installinganewcircuitbreakerisconvenient.Typical
sizesare15,20and30amps.
6. Foroptimaldeviceperformance,useshortestwire
lengthofwireaspossible.Cutofftheexcesswire
insteadofcoilingitup.Avoidsharpbends.
7. Beforeenergizing,installershallverifyserviceand
separatelyderivedsystemNeutraltoGroundbonding
jumperpertheNECrequirements.
¾"closenipple
¾"steelconduit
lockingnut

INSTRUCTIONS 270353
Surge-Trap®Type 1 SPD for NEMA Type 4X Applications
PRODUCT CHARACTERISTICS
SPD Model
Nominal
Voltage
(V ac)
Phase Modes Freq (Hz) SCCR In
Wiring
Diagrams
STT4X1201PG 120 1N-G, L- N, L- G 50/60 200 kA 20 kA A
STT4X240SPG 120/240 1S L-N ,L- L 50/60 200 kA 20 kA B
STT4X2401PG 240 1N - G, L- N, L- G 50/60 200 kA 20 kA A
STT4X2083PYG 120/208 3Y L-N,L- L 50/60 200 kA 20 kA C
STT4X4803PYG 277/480 3Y L- N,L- L 50/60 200 kA 10 kA C
STT4X6003PYG 347/600 3Y L- N,L- L 50/60 200 kA 10 kA C
STT4X2403PDG 240 3D L- G, L-L 50/60 200 kA 20 kA D
STT4X4803PDG 480 3D L- G, L- L 50/60 200 kA 10 kA D
WIRING DIAGRAMS Surge-TrapSPDistobeusedonsolidlygroundedsystemsONLY!
Single/Split Phase Systems (3 Wire)
Threewiresystemdesignedforprotectionofthemodesaslistedinthetable
above.RefertotheconnectiondiagramstoensurethattheSPDyouhave
chosenisappropriatefortheapplicationitisbeinginstalledinto.
Three Phase Systems (4 Wire)
Fourwiresystemdesignedforprotectionofthemodesaslistedinthetable
above.RefertotheconnectiondiagramstoensurethattheSPDyouhave
chosenisappropriatefortheapplicationitisbeinginstalledinto.
USAT9784626662F9784620181[email protected]
374MerrimacStreet,Newburyport,MA01950
CANADAT4162529371F4162526572[email protected]
88HornerAvenue,Toronto,Ontario,CanadaM8Z5Y3
ep-us.mersen.com ep-ca.mersen.com
INST-270353|07.12|©2012Mersen
A
C
B
D
4.450
0.84
5.710
2.250
4.500
3.600