The  HR18 series fuse type isolation switch has a beautifull appearance, novel, and simple structure, and is easy to operate. 
Its rated insulation voltage is 1000V, rated working voltage is 690V, rated working current is 800A, and rated frequency is 50Hz. It is used as a power switch, isolation switch, emergency switch, and circuit protection in distribution and motor circuits with high short-circuit current but it is generally not used for directly opening and closing a single motor. 
 
The switch complies with IEC60947-3 and GB/T14048.3 standards.