... .Material:surge protective device, SPD, Box-type SPD, surge arrester 220V AC Imax 40kA Can be customized according to the customer ... residual voltage and easy installation. It is adapted to the 220V Power Distribution System and places require stable electrical load, low ... 3000pcs surge protective device, SPD, Box-type SPD, surge arrester 220V AC Imax 40kA with high quality per month.Packing:Usually ...