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ZN85-40.5 Indoor Vacuum Circuit Breaker
Selection Operating conditions 1. Ambient temperature -10℃ ~ +40℃ 2. Altitude ≤ 1500m; 3. Relative humidity: the daily average is not greater than 95%, the monthly average is not greater than 90%, the daily average of saturated steam is not greater than 2.2*10-³Mpa, and the monthly average is not greater than 1.8*10-³Mpa; 4. The earthquake intensity does not exceed 8 degrees; 5. Places free of fire, explosion hazards, severe pollution, chemical corrosion and severe vibrations. Features 1. Ad...
ZW7-40.5 Outdoor Vacuum Circuit Breaker
Operating conditions 1. Ambient temperature: upper limit +40℃, lower limit -30℃; Days difference does not exceed 32K; 2. Altitude: 1000m and the following areas; 3. Wind pressure: not more than 700Pa (corresponding to the wind speed 34m/s); 4. Air pollution level: IV class 5. Earthquake intensity: do not exceed 8 degree; 6. Ice thickness: no more than 10mm. Technical data Item Unit Parameter Voltage, current parameters Rated voltage kV 40.5 Rated short time power frequency withstan...
ZN28-12 Indoor Vacuum Circuit Breaker
Selection Operating conditions 1. The environment temperature: upper limit +40℃, lower limit -15℃; 2. Altitude: ≤2000m; 3. Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%; 4. Earthquake intensity: less than 8 degrees; 5. No fire, explosion, pollution, chemical corrosion and severe vibration place. Technical data Item Unit Parameter Parameters of voltage, current, life Rated voltage kV 12 Rated short time power frequency with...
ZN23-40.5 Indoor Vacuum Circuit Breaker
Selection Operating conditions 1. The environment temperature: upper limit +40℃, lower limit -15℃ (cold area -25℃); 2. Altitude: not more than 2000m; 3. Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%; 4. Saturated steam pressure: daily average value is not higher than 2.2 × 10 -3 Mpa,monthly average is not higher than 1.8×10-3 Mpa; 5. Earthquake intensity does not exceed 8 degrees; 6. No fire, explosion, pollution, chemical corrosion a...
ZW32-12 Outdoor Vacuum Circuit Breaker
Selection Operating conditions 1. The environment temperature: upper limit +40℃, lower limit -30℃ 2. Altitude ≤ 2000 meters 3. Wind pressure: no 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: less than 25℃ . Technical data Item Unit Parameter Voltage, current parameters Rated voltage kV 12 Rated short time power frequency withstand voltage (1min) kV 42/48 Rated l...
ZW20-12 Outdoor Vacuum Circuit Breaker
Selection Operating conditions 1. Altitude≤2000 meters 2. The environment temperature: -30℃ ~+55℃ outdoor; the highest annual average temperature 20 ℃, the highest daily average temperature 30 ℃; 3. Relative humidity: 95% (25℃) 4. Seismic capacity: horizontal ground acceleration 0.3g, vertical ground acceleration 0.15g, at the same time duration of three sine waves, a safety factor of 1.67 5. Earthquake intensity: 7 degrees 6. The maximum daily temperature difference: 25 ℃ 7. The intensity o...

Indoor Vacuum Circuit Breaker

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