ZW32-12 vacuum circuit breaker is an outdoor power distribution equipment with a rated voltage of 12KV and three-phase AC 50Hz. It is mainly used to break current and close load current, overload current and short-circuit current in the power system. It is suitable for protection and control in substations and power distribution systems of industrial and mining enterprises, and places where rural power grids are frequently operated.

This circuit breaker has the characteristics of small size, light weight, anti-condensation, maintenance-free, etc., and can adapt to harsh climate conditions and polluted environments.

Product name Unit Spec. Spec.
Model ZW32-12 ZW32-24
Rated voltage kV 12 24
Rated frequency Hz 50 50
Rated current A 630 630
Rated circuit breaking current kA 20 20
Rated peak withstand current kA 50 50
Rated short-time withstand current kA 20 20
Rated circuit breaking current (peak value) kA 50 50
Mechanical life Times 10000 10000
Rated circuit breaking current breaking times Times 30 30
Power frequency withstand voltage (1min): (wet) (dry) same, to ground/break kV 42/48 65/79
Lightning impulse withstand voltage (peak value) same, to ground/break kV 75/85 125/145
Secondary circuit 1min power frequency withstand voltage kV 2 2

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