| Breaking Capacity: | High Voltage Circuit Breakers |
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| Operation: | Electric Type |
| Speed: | Normal Type Circuit Breaker |
| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier
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Indoor High Voltage Vacuum Circuit Breaker is three-phase AC 50Hz, Rated voltage of 12kV indoor device, For industrial and mining enterprises, power plants and substations as electrical equipment control and protection purposes, and for frequent operation of the place. It can be fixed in a switch cabinet or installed on a handcart. Stable performance and easy installation. Applying Ambient Conditions: • Ambient temperature: not higher than +40°C, not less than −10°C (at −30°C to allow storage and transportation). • Altitude: not exceed 1000m. • Relative humidity: daily average of not more than 95%, saturated vapor pressure on the average of not more than 2.2×10-3MPa, On average not more than 1.8× 10-3MPa. • Earthquake intensity: not more than eight. • No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration. |
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| No. | Items | Unit | Parameters | |
| 1 | Rated voltage | kV | 40.5 | |
| 2 | Rated frequency | Hz | 50 | |
| 3 | Rated insulation level | Lightning impulse withstand voltage (peak) | 85 185 |
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| 4 | Rated current | A | 1250,1600,2000, 2500 | |
| 5 | Rated short circuit breaking current | kA | 25, 31.5, 40 | |
| 6 | Rated short circuit closing current (peak) | kA | 63, 80 ,100 | |
| 7 | Rated short-time withstand current (4s) | kA | 25, 31.5, 40 | |
| 8 | Rated peak withstand current | kA | 63, 80,100 | |
| 9 | Breaking times of rated short-circuit current | Times | 20 | |
| 10 | Rated capacitor bank breaking current | A | 400 | |
| 11 | Rated operating sequence | 0-0.3s-CO - 180s-cO | ||
| 12 | Mechanical life | Times | 10000 | |
When placing order, please provide the following technical parameters
Suppliers with verified business licenses
Audited Supplier 
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