35kV Vacuum Circuit Breaker – Indoor ZN85(VD4)-40.5 1250A 25kA

The 35kV vacuum circuit breaker ZN85(VD4)-40.5 is designed for medium and high voltage power systems. It is mainly used for switching load current, overload protection, and short-circuit interruption in 35kV switchgear.

Using advanced vacuum interrupter technology, this indoor vacuum circuit breaker ensures high breaking capacity, long service life, and reliable insulation performance.

It is widely used in power distribution systems, substations, industrial plants, and renewable energy projects.

Key Features of Indoor Vacuum Circuit Breaker

· Designed for 35kV medium voltage systems

· Rated current up to 1250A

· Short-circuit breaking capacity 25kA

· Advanced vacuum arc extinguishing technology

· Withdrawable type for easy installation and maintenance

· Long mechanical and electrical life

· Maintenance-free or low maintenance design

· Environmentally friendly (no oil, no SF6 gas)

Applications of 35kV Vacuum Circuit Breaker

This indoor VCB is widely used in:

· 35kV switchgear panels

· Electrical substations

· Power generation plants

· Industrial power distribution systems

· Solar and wind power projects

· Mining, metallurgy, and infrastructure

Advantages of ZN85 Vacuum Circuit Breaker

Compared with traditional circuit breakers, the 35kV vacuum circuit breaker offers:

· Faster arc extinction and higher reliability

· Longer service life and reduced maintenance cost

· Safer operation with no fire or explosion risk

· Compact structure for switchgear integration

· Strong adaptability for harsh environments