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-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
