HR17 fuse switch disconnector,Isolating Switch Fuse Rated voltage: 660V Rated current:160A,250A,400A,630A HR17 fuse switch disconnector,Isolating Switch Fuse1. Description: ... rates current 160A~630A mainly used as power switch, isolating switch and emergency switch with function of protection in the circuit with ... 16, 20, 25, 32, 35, 40, 50, 63, 80, 100, 125, 160, 200, 224, 250, 300, 315, 355, 400, ...