... Protective Device 3,Customer first,sincere cooperation power surge protector BX,voltage surge protection device,SPD Surge Protective Device:Application: SUP3 ... device,it is category B surge protective device. Specifications: TSPD-BX/4P Nominal operating voltage (Ux) 380νMaximum continuous operating voltage ... /wire Temperature range-40 to +70Weight0.47KG power surge protector BX