The ZN23-40.5 series high-voltage vacuum circuit breaker is an indoor high-voltage electrical device rated for 40.5kV and three-phase AC 50Hz. It is suitable for power transmission and distribution systems in industrial and mining enterprises, substations, etc., serving as a control and protection switch; particularly applicable in industries requiring frequent operations such as metallurgy and arc steelmaking, as control and protection equipment.

This product complies with the GB1984-89 standard "AC High-Voltage Circuit Breakers." The circuit breaker trolley can be directly installed in GBC-35 and JYN1-35 cabinets, and it can also be used separately by removing the plug.