KM20C/2 series surge protective devices are used for lighting and over-voltage protection in AC 50/60HZ, 230/400V. The product has an internal nonserviceable seperating device. When the surge protective device is over-current or over-voltage and the thermal cutoff member will automatically disconnect the protector from the electrical network. And simultaneously the position display window will turn red from green.

Normal operating voltage (Un): 220/380V (AC)
Max cont operating voltage (Uc): 320/385V (AC)
Nominal discharge current (In): 20KA (8/20??s )
Maximam discharge current (I max): 40KA (8/20??s)
Voltage protective level (up): < = 1800V
Response time (Ts): < =25ns
Operating temperature range: -40 deg. C - +70 deg. C
Relative humidity: < = 95%
N. W.: 240G/PC
Carton size: 450 (L) x 245(W) x 265 (H) mm