Features isolate switch insulator fuse switch 1)High voltage isolate switch 2)Material:porcelain & Steel & Iron 3)Rated volta Features isolate switch insulator fuse switch1)High voltage isolate switch2)Material:porcelain & Steel & Iron3)Rated voltage:10,12,25KV4)Rated current:200,400,600,1000A 25kv GW9-12W series isolate switch insulator fuse switch