Factory Supply ZW43-12F/630 Vacuum Circuit Breaker with 20kA Breaking Capacity

The ZW43-12 series outdoor high voltage vacuum circuit breaker is designed for 12kV three-phase AC 50Hz power systems. This robust electrical equipment combines a circuit breaker body with spring operating mechanism to provide reliable switching and protection functions.

This circuit breaker features strong arc extinguishing capability and long electrical life, making it ideal for frequent operation scenarios. Its compact design and lightweight construction offer excellent installation flexibility while maintaining high performance standards.

The anti-condensation design ensures maintenance-free operation even in humid conditions. The device includes comprehensive protection and control circuits for enhanced system safety and reliability.

Main applications include:

• Load current breaking and closing
• Overload current protection
• Short-circuit current interruption
• Power grid control and protection

Particularly suitable for polluted environments and locations requiring frequent operations, the ZW43-12 series is widely used in 10kV distribution networks of substations and power systems. It has become the preferred choice for urban and rural power distribution automation projects.