The ZN91-40.5 indoor high-voltage vacuum circuit breaker is an indoor device for 35kV, three-phase AC 50Hz power systems, suitable for industrial and mining enterprises, power plants, substations, and other locations for control and protection of high-voltage motors, transformers, capacitors, steelmaking furnaces, and similar equipment.

Main Features:

The most outstanding advantage is high reliability and suitability for particularly frequent operations

Applicable to arc steelmaking, capacitor switching, and other devices requiring frequent operation for control and protection

Effective measures adopted in structural design, component selection, surface treatment, and manufacturing processes

Shaft pin components made of high-quality alloy steel with advanced surface treatment, enhancing wear resistance

Complies with GB1984, DL/T402, IEC62271-100, and IEC60694 standards