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VCB Vacuum Circuit Breaker

The vacuum circuit breaker is an indoor power distribution device in a 3~10kV, 50Hz three-phase AC system, which can be used for protection and control of electrical equipment in industrial and mining enterprises, power plants and substations. It is especially suitable for oil-free and less For maintenance and frequent operation, the circuit breaker can be configured in the central cabinet, double-layer cabinet and fixed cabinet for controlling and protecting high-voltage electrical equipment.

Quantity:

Technical Data


Rated voltage

12kV

Contact supper travel

3.5±0.5

Rated frequency

50Hz

Contact closing tripping time

≤2

Rated lighting impulse withstand coltage(peak)

75kV

Average switch-off speed

1±0.2

Rated short-circult current duration

4s

Switch-off(rated voltage)

20~60

Mechanism life

2000

Switch-on(rated voltage)

30~70

Secondary circuit power frequency withstand voltage

2000

Motor rated rate of work

70(40kA 100W)

Contact opening distance

11±0.1



Product Diagram



VCB Vacuum Circuit Breaker

Overall and mounting dimensions



VCB Vacuum Circuit Breaker


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