This type of Outdoor Pillar High Voltage Vacuum Circuit Breaker is the outdoor high voltage switchgear of three-phase AC 50HZ and rated voltage of 12kV. It can be used as breaking, closing rhe load current, overload current, and short-circuit of the urban or rural power distribution system.

Service Environment Condition:

1. Ambient Tempreature: -40℃ - +40℃

2. Altitude: ≤1000m (If altitude increases, rating insulation level rises correspondingly)

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℃