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ZN63(VS1)12 series Indoor High Voltage Vacuum Circuit-Breaker
They are applied in the electric power systems of three phase AC50HZ, rated voltage to 12KV for switcthing overload of various character and also for frequent operation. And works to protect and control of electrical equipment in industrial plants, mines, enterprises, power generation plants and substations.
1: Ambient temperature: upper limit +400, lower limit -150, no exceeding +350 in day mean value.
2: Altitude: No exceeding 1000m.
3: environmental humidity: no exceeding 95% in daily average of relative humidity.
No exceeding 90% in monthly average of relative humidity.
4: Earthquake intensity: No exceeding 8.
5: There should be no danger of inflammability and explosion, no chemical corrosion and intensive vibration at the operation place. The user should indicate in the order if you have some special needs.