1. Best quality ZN12-40.5KV Series fixed type vacuum circuit breaker VCB
ZN12-40.5 series indoor high voltage vacuum circuit breaker is mainly 35KV three-phase AC 50HZ applied to power system, the circuit breaker for the ceramic structure, using the longitudinal magnetic field contacts, is small, the proliferation of breaking arc generated when current distribution in the contact on the same local melting phenomenon does not occur, but also has a low arc energy voltage (20-200V) and low chopping current (4-5A), and operate with high reliability organizations.
2. Highlight of VCB
The switch of simple structure, open high capacity, long life operation of fully functional no explosion risk, maintenance is simple, suitable for power plants, substation control and distribution system, protection switching, particularly suitable for heavy duty and frequent breaking operation place.
Rated short-circuit breaking current
Dynamic current (peak)
4S thermal current
Rated short circuit making current (peak)
Rated short-circuit current breaking times
Rated operating sequence
Rated insulation level
1min power frequency withstand voltage
Lightning impulse withstand voltage (peak)
Rated single capacitor device ON-OFF current
Rated single back-to-back capacitor device current
Rated voltage electrical energy storage
Energy Storage Power Rating
Electrical Energy Storage Energy Storage time
Hop Tripping coil rated voltage
Hop Tripping coil rated current
Over-current tripping device rated current
Contactor opening distance
Contactor Contact trip
At the different period of three consistency
Contact closing bounce time
Altitude: not exceed 1000m.
Ambient temperature: not higher than +40 °C, not less than -15°C
Earthquake intensity: not more than ten.
Relative humidity: daily average of not more than 95%, month average of not more than 90%.
5. Technical diagram
6. Factory show
7. Delivery garantee
Atten: Emma ma
XIGAO Electricenergy Group Co.,LTD.
Add.: No. 6, Weibei Industrial Park, Xi'an City, Shaanxi Pro., CN. 710600
Phone: 0086 13319220197