ZN63A indoor M.V vacuum circuit breaker is suitable for indoor system of 3-

phases, A.C, 50Hz, for controlling and protecting in the circuits of 12kV.

Conformity with the standards GB1984, DL403, and IEC56.

1.1 Technical features

Long mechanical service life and short-circuit breaking times

At rated current, the mechanical service life is 20000 times;

At rated short-circuit current, the breaking times is 30 and 50.

Full function

Breaking and making the all sorts of loads on the standard stipulated by the

electricity ministry reliably, such as capacitor, out of phase conditions of

method 1-5.

Few maintenance

Just cleaning and lubricating the operating mechanism.

Insulating sleeve

Avoided all kinds of effects of ambient condition

Full series modulus

The rated current from 630A to 3150A

The rated short-circuit breaking current from 20kA to 40kA.

Full series, fine currency and maintenance and service conveniently.

Before delivery 500 times mechanical endurance operations would be done

according to the reliable theory to guarantee the reliability of the products.

Providing the best after-sale service.