ZN12 type ZN12-40.5 vacuum circuit breaker

The vacuum circuit breaker type indoor vacuum circuit breaker is suitable for three-phase AC power systems. The arc chamber of this circuit breaker is made of porcelain structure and adopts longitudinal magnetic field contacts. It has small size and The diffusion generated during breaking
The arc current is uniformly distributed on the contacts and there will be no local melting phenomenon
It also has low arc energy voltage and low cut-off value
It is equipped with high reliability operating mechanism.
This circuit breaker adopts a spring energy storage mechanism, which can be operated by AC energy storage to support DC operation, or it can be operated manually. This circuit breaker uses special contact materials to make the arc extinguishing chamber have a high breaking capacity and a long electrical life.
This circuit breaker has a simple structure, strong breaking capacity, long life, complete operation and no explosion.
It is dangerous and easy to maintain. It is suitable for control or protective switches of distribution systems such as power plants and substations. It is especially suitable for Switching off important loads and places with frequent operations.
The circuit breaker is a three-phase AC, rated voltage for indoor installation.
The mechanism of this circuit breaker is designed to be integrated with the arc extinguishing chamber system. The special Siemens type spring operating mechanism adopts a dual-purpose motor for AC and DC energy storage operation, and can also be operated manually.
This product is designed with various phase distances, making it more convenient to use with different types of switch cabinets.
Can be used in fixed cabinets or in kitchen