Lightning-proof Surge Protector SP3

Descriptions of Lightning-proof Surge Protector SP3
SP3 is applicable for TT, IT, IT-S, TN-S, TN-C, TN-C-S power supply systems (50/60HZ, 230/400V AC or below).
It is used to protect low-voltage power grid and various electric devices and controlling systems; to restrain trasient overvoltage which is higher than devices' withtand impulse voltage; to restrict the voltage of various surge overvoltage in order to protect devices' circuit and equipment.