GBL-20 Series Surge Protector: 1.50/60Hz; 2.Max continuous working voltage:420V 3.Width:18mm; 4.Fuse:16A GBL-20 Series Surge Protector:1.The use and scope of Surge protector:GBL Surge Protector(hereinafter referred to as SPD) adapted to AC,mainly used for rated voltage not exceeding 400V,50/60Hz power supply system,such as TN-S,TN-C,TN-C-S,TT,IT.It protects the electric network shocked by the ...