Surge Protective Device(Km20c/3npe)
General product information
KM20C/3NPE series surge protective devices are used for lighting and over-voltage protection. The product has an internal non serviceable separating 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.Key specifications of KM20C/3NPE:
Normal operating voltage (Un): 220V / 380V
Max cont operating voltage (Uc): 150V/275V/320 / 385V /420V/600V
Nominal discharge current (In): 20KA (8/20Us )
Maximum discharge current (I max): 40KA (8/20Us)
Voltage protective level (Up):