Summary

ZW20-12 series of outdoor high pressure AC demarcation vacuum circuit breakers are outdoor high voltage switchgear with rated voltage 12kV and three-phase AC 50Hz. It is mainly used to break off and close 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 and urban and rural distribution networks, and is especially suitable for frequent operating places and urban network automation distribution networks. This product is matched with the controller, which can meet the requirements of the distribution automation system, and can complete the traditional reclose function reliably and effectively. Its mature box seal structure, which is filled with SF6 gas, has good sealing performance and is not affected by external environment. It is a maintenance free product. Its spring operating mechanism adopts the main drive of the direct moving chain and the multilevel tripping system, which has high reliability and is a good product of the circuit breaker.

Model and its meaning

Main technical parameters

Shape and installation size