40.5kV Vacuum circuit breaker Outdoor is used to make and break load current, overload current and short-circuit current in 40.5kV, 50/60Hz power system. It is applicable for substations, industry and mining, urban and rural electricity power networks, especially for occasions of frequent operation and automatic power distribution network.

It accords with the standard of IEC62271-100&GB1984:AC high voltage circuit breaker, IEC60694&GB/T11022:HV General technical requirement of switch and control apparatus.40.5kV Vacuum circuit breaker AB-3S-40.540.5kV Vacuum circuit breaker AB-3S-40.5