... referred to as SPD)adapted to AC,mainly used for rated voltage not exceeding 1000V(RMS),200/380V,50 ... Standard Discharge Current In(KA)Max Discharge CurrentImax(KA)Protection Level(KA~)Response Time(ns)DGM3-B30220/380275/ ... Protector,Surge Arrester,Surge Suppressor,Lightning Surge Protector,Surge Protecton Device,Lightning Protection,Distribution Surge Protection,Lightning Arrester and so on Voltage ...