|
Still deciding? Get samples of $ !
Request Sample
|
| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
| Item | Unit | Specification |
| Rate voltage | kV | 40.5 |
| Rate current | A | 630/1250 |
| Rate frequency | Hz | 50 |
| Power frequency withstand voltage(value) | kV | 42 |
| Lightning impulse withstand current (peak) | kV | 75 |
| Rated short-circuit breaking current | kA | 20 |
| Rated short-circuit making current (peak) | kA | 50 |
| Dynamic peak withstand current | kA | 50 |
| Thermal withstand current,4S | kA | 20 |
| Rated operating cycle | O-0.3s -CO-3s -CO-3s CO | |
| Rated short-circuit current breaking times | times | 30 |
| Mechanical life | times | 10000 |
| Working power supply voltage | V | 220(110) |
| Creepage | mm/kV | ≥31 |
| Item | Unit | Specification |
| Contact stroke | mm | 11±1 |
| Contact over-travel | mm | 3±0.5 |
| Opening average speed | m/s | 0.6±0.2 |
| Closing average speed | m/s | 1.0-1.4 |
| Contact closing bouncing duration | ms | ≤2 |
| Center distance between phases | mm | 280±2 |
| Closing synchronism between poles | ms | ≤2 |
| Opening synchronism between poles | ms | ≤2 |
| Conductive loop resistance of each phase | μΩ |
<120;With isolation<170 |










