Selection     Note: If there is no grounding switch, the grounding operation shaft acts as an interlocking shaft, and the external dimensions remain unchanged. Operating conditions ● Ambient temperature: -25℃ +40℃; ● Relative humidity: daily average <95%, monthly average <90%; ● Altitude: not higher than 1000m; ● Earthquake intensity: no more than 8 degrees: ● Place of use: No explosion hazard, chemical and severe vibration and pollution. ● Service conditions above an altitud...

  Selection Operating conditions 1. Ambient temperature: upper limit +40℃, lower limit -30℃; 2. Altitude: ≤2000m; 3. Wind pressure: not more than 700Pa (corresponding to the wind speed 34m/s); 4. Earthquake intensity: do not exceed 8 degree; 5. Pollution grade: III class; 6. Maximum daily temperature variety less than 25℃ . Technical data Item Unit Parameter Rated voltage kV 12 Rated 1min power frequency withstand voltage Dry test kV 42/ fracture 48 insulation level Wet test k...

      Selection ZN63 - 24 P / T 630 - 25 HT P210 Name - Rated    voltage(KV) Pole / Operating  mechanism Rated    current(A) - Rated short-circuit Installation Main circuit type Indoor  vacuum circuit    breaker - 24:24KV No mark: Insulating cylinder type P: Solid-sealing type / T:Spring type 630  1250  1600 2000 2500  3150 4000 - 20 25 31.5 40 HT:Handcart type FT:Fixed type P210 P275 Note: Zn63 (S) adopts a double spring integral mechanism by def...