Type 1+2/Class B+C Protection: At input of 3 – phase supply

Combination surge arresters Type 1+2 & Class B+C according to EN 61643-11 & IEC 61643-1 for the lightning protection zone 0-2 consisting of din mountable - one common base consisting of 3 numbers of modular pluggable units of high energy varistor based technology to be connected between line to neutral and 1 number of GDT to be connected between neutral to earth complying the below technical parameters:

a) Nominal voltage between L-N, Un = 230 volts
b) Maximum continuous operating voltage between L-N, Uc = 320 volts
c) Maximum continuous operating voltage between N-PE, Uc = 255 volts
d) Lightning Impulse Current (L-N), Iimp (10/350 micro sec) = 7 KA
e) Lightning Impulse Current (N-PE), Iimp (10/350 micro sec) = 25 KA
f) Nominal discharge current In (8/20 micro sec), (N-PE) = 30 KA
g) Max discharge current Imax (8/20 micro sec), (L-N) = 50 KA&(N-PE) = 50 KA
h) Voltage Protection Level, Up = < 1.3 KV (L-N), < 1.2 KV (N-PE)
i) Response time, tA = < 25 (L-N) &< 100 (N-PE) nano seconds
j) Working condition of the SPD - Visual indication = Green “OK” & Red “Failure”
k) Temp Range, -40° C to +80° C
l) Degree of Protection IP 20  

Model Number: V25-B+C/3+NPE,320V