Outdoor HV Vacuum Circuit Breaker is the outdoor HV switchgear with three phase, alternating current, frequency 50Hz, and rated voltage 12kV, applied as the protection and control unit for the electric utility of industrial and mining enterprises, power plant and substation; because of the special high performance of the circuit breaker, it is especially applicable to the place where frequent operation or repeatedly breaking short-circuit current is applied.

      The design and manufacture of this circuit breaker complies with the relevant requirements of the standard GB1984 ‘High-voltage alternating-current circuit breakers’, GB/T11011 ‘Common specifications for high-voltage switchgear and controlgear standards’ and IEC60271-100 ‘Alternating-current high-voltage circuit breakers’.