ZW32SR-12 primary and secondary integrated pole-mounted circuit breaker adopts vacuum arc extinguishing principle, permanent magnetic operating mechanism (spring operating mechanism), and integrates microprocessing technology, modern network communication technology and switch manufacturing materials. It is an outdoor power distribution equipment with a rated voltage of 12kV, 50Hz three-phase AC. This product is widely used as a disconnecting or connecting switch in urban power grids, or in rural power distribution systems. The outdoor substation outlet switch can effectively complete the work of traditional reclosers, breaking and closing load currents and short-circuit currents.