This type of Voltage Vacuum Circuit Breaker is an outdoor AC high voltage electric equipment of rated voltage 40.5kV with frequency 50HZ. It is enclosed with spring operation mechanism or electromagnetic operation mechanism, suitable for remote control of electric switching on and off. The design is in accordance with IEC-56 ＜AC high voltage circuit breaker＞ of International Electrician Committee. This product is mainly applied for control and protection in outdoor power transmission system of 35kV, also for normal operation and short circuits protection in rural and urban power net and industrial enterprise.

Service Environment Condition:

1. Ambient Tempreature: -40℃ - +55℃

2. Altitude: ≤3000m

3. Wind Pressure: Do not exceed 700Pa (Equal to wind speed 34m/s)

4. Amplitude: Earthquake strength less than 8

5. Max. daily tempreature difference: Not exceed 25℃