... current:160A,250A,400A,630A HR17 fuse switch disconnector,Isolating Switch Fuse1. Description:DNH1(HR17) series NH fuse ... rates current 160A~630A mainly used as power switch, isolating switch and emergency switch with function of protection in ... 400A and NT3 for 630ARated currents: 4, 6, 10, 16, 20, 25, 32, 35, 40, 50, 63, 80, 100, ... -400NT3-630 HR17 series fuse switch disconnecter Isolating Switch Fuse