ZN23-40.5 vacuum circuit breaker is rated voltage 40.5KV, three-phase ac 50HZ, indoor high-voltage electrical equipment, suitable for industrial and mining enterprises, substations and other power transmission and distribution systems, for control and

protection switch, especially suitable for gold, arc steelmaking and other industries that need frequency operation, as a control and protection equipment. This product conforms to the standard of GB1984-89 "AC high voltage circuit breaker".