... auxiliary closing, arc extinguishing equipment and touch protection parts, with fuse matched inside. and self-closing test hole in the switch ... cover. Providing the most safty using.HR17 fuse type isolation switch,rated insulating voltage AC800V.rated operating voltaged ... current: 160A, 250A, 400A and 630ANumber of poles: 3P,Assorted fuse links: NT00 for 160A, NT1 for 250A, NT2 for 400A and ...