surge arrestor,Surge Protection Device(SPD) 1,Base:PA66 Anti-fire 2,In:10kA,Imax:20kA Surge Protection Device(SPD) Applied for single-phase ... .Applicable for B,C,D class protection,it adapts to LPZ1-LPZ2 LPZ3 lightning protection area. 1,Rated voltage Un (V~)220/3802 ... Imax(KA)10 8/20µS5,Response time (ns)< 256,Protection level< 1.4/1.5< 1.8/1.9 385V surge arrestor