product description

       ZW20-12F outdoor high-voltage intelligent demarcation vacuum circuit breaker is an outdoor high-voltage switchgear with a rated voltage of 12kV and three-phase AC 50Hz. It is mainly used for breaking and closing the load current, overload current and short-circuit current of the power system.

       It is suitable for protection and control of substations, industrial and mining enterprises, urban and rural distribution networks, and is especially suitable for places with frequent operations and urban network automation distribution networks.

Model meaning

Environmental conditions

◆ The altitude shall not exceed 3000m;

◆ Ambient air temperature: -40℃~+40℃; Daily temperature difference: daily temperature change 25℃;

◆ Wind speed is not more than 35m/s;

◆ The place shall be free from flammable and explosive substances, strong chemical corrosive substances (such as various acids, alkalis or thick smoke, etc.) and severe vibration.

Main technical parameters of circuit breaker

Main mechanical parameters of circuit breaker

Appearance and installation dimensions (mm)

This product is matched with the controller to meet the requirements of the distribution automation system and can reliably and effectively complete the traditional recloser function. It adopts a mature box-type sealing structure, filled with SF6 gas inside, has good sealing performance, so that it is not affected by the external environment and is a maintenance-free product. Its spring operating mechanism adopts a direct-acting chain main drive and a multi-stage tripping system, with high action reliability, and is an excellent product for pole-mounted circuit breakers.