... rated current 160A-630A 1 Use HR17 series fuse type isolating switch,rated insulating voltage AC 800V,rated operating voltage 690V ... rated current 160A-630A,mainly used as power switch,isolating switch and emergency switch with function of protection in the circuit with ... each phase 15kV2.8 Rated limiting short current:When the switch installed with standard fuse, the rated withstanding short making ...