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

Combination surge arrester 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 1 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/1+NPE, 320V