Mersen Surge-Trap User manual

Instructions
INSTRUCTIONS 730308 Rev. -
Surge-Trap®Type 1 SPD for NEMA Type 2 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2ApplicationsOnly.
PANEL MOUNT AND WIRING
1. Turnoffallpowersupplyingthisequipment.
2. PanelMount:Removelocknutfromproduct.Punch
outa1/2″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Surge-Trap®SPDwirescarefullythroughthe
knockoutholeandtightenthelocknutto20ft-lb
(2.3Nm)maximumtosecuretheSurge-Trap®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
NUT
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.

INSTRUCTIONS 730308 Rev. -
Surge-Trap®Type 1 SPD for NEMA Type 2 Applications
PRODUCT CHARACTERISTICS
SPD Model
Nominal
Voltage
(V ac)
Phase Modes Freq (Hz) SCCR In
Wiring
Diagrams
STT21201PG 120 1N-G, L- N, L- G 50/60 200 kA 20 kA A
STT2240SPG 120/240 1S L-N,L- L 50/60 200 kA 20 kA B
STT22401PG 240 1N - G, L-N, L- G 50/60 200 kA 20 kA A
STT22083PYG 120/208 3Y L- N,L- L 50/60 200 kA 20 kA C
STT24803PYG 277/480 3Y L- N,L- L 50/60 200 kA 10 kA C
STT26003PYG 347/600 3Y L-N,L-L 50/60 200 kA 10 kA C
STT22403PDG 240 3D L-G, L- L 50/60 200 kA 20 kA D
STT24803PDG 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.
3.750
4.725
4.050
2.370
3.700
3.702
3.002
2.370
3.750
4.725
4.050
2.370
3.700
3.702
3.002
2.370
A B
C D
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-730308|12.11|©2011Mersen