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 I
n
Wiring
Diagrams
STT21201PG 120 1 N-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 1 N- 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-TrapSPDistobeusedonsolidlygrounded
systemsONLY!
Single/Split Phase Systems (3 Wire)
Threewiresystemdesignedforprotectionofthemodesaslistedinthetable
above.RefertotheconnectiondiagramstoensurethattheSPDyouhave
chosenisappropriatefortheapplicationitisbeinginstalledinto.
Three Phase Systems (4 Wire)
Fourwiresystemdesignedforprotectionofthemodesaslistedinthetable
above.RefertotheconnectiondiagramstoensurethattheSPDyouhave
chosenisappropriatefortheapplicationitisbeinginstalledinto.
3.750
4.725
4.050
2.370
3.700
3.702
3.002
2.370
A B
C D
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INST-730308|12.11|©2011Mersen