3 phase - surge arrester for protection of AC power line, DIN rail mount replaceable surge modules with 3 MOV+1 GDT module, Imax 40kA, are suitable for lightning and surge protection in AC 50/60Hz, 220/380V sub-distribution board.
Features of 3 phase surge arrester FV20C/3+NPE-***(S):
There is a thermal cutoff member inside the 3 phase surge arrester, when the device is over-current or over-voltage and the puncture is nonseviceable, the thermal cutoff member will automatically separate from the surge protective device from the electrical network, and the indication window will turn red from green.
APPLICATION of 3 phase surge arrester FV20C/3+NPE-(S):
AC power line of building, house, bank, Telecome tower and so on.
Certificate of the 3 phase surge arrester FV20C/3+NPE-(S):
CE-LVD
Model No. FV20C/3+NPE-275S FV20C/3+NPE-320S FV20C/3+NPE-385S FV20C/3+NPE-440S
Max. continuous operating voltage Uc V 275 320 385 440
Requirement class to DIN EN 61643-1:2005 Class C Class C Class C Class C
Rated Voltage Un V 220/380 220/380 220/380 220/380
Nominal discharge current (8/20µs) In kA 20 20 20 20
Max. discharge current (8/20µs) Imax kA 40 40 40 40
Voltage protection level (at In) L-N Up kV =1.2 =1.5 =1.8 =2.0
Voltage protection level (at In) N-PE Up kV =1.5 =1.5 =1.5 =1.5
Response time tA ns
