ZW37-40.5 type vacuum circuit breaker is outdoor high voltage switch equipment with rated voltage 40.5 kV, tri-phase AC 50 Hz.

ZW37-40.5 type vacuum circuit breaker is outdoor high voltage switch equipment with rated voltage 40.5 kV, tri-phase AC 50 Hz. It mainly used to open and close electric power system load current, overload current and short circuit current. Applicable to substations, industrial and mining enterprises and the urban and rural electric protection and control, especially suitable for frequent operation sites and city network automation distribution network.