| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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ZW8-12 type outdoor high voltage vacuum circuit breaker is mainly used for AC 50Hz, voltage 10-12KV three-phase power system, used for breaking and closing the load current. It has overload and short circuit protection function. It can equipped with surge current time delay protector and the lightning arrester or isolating switch namely breaker and isolating switch combination etc. according to user needs.
| Project | Parameter | Project | Parameter |
| The rated voltage | 12kV | Rated sequence of operation | Open-0.3SOr points -180SOr points |
| Rated current | 630A | Rated short circuit current breaking times | 30time |
| Power frequency withstand voltage | 42kV/48kV | Mechanical life | 10000time |
| Lightning shock voltage (peak) | 75kV/85kV | Rated operating voltage (close/split coil) | DC220V AC220V |
| Rated short circuit breaking current (RMS) | 25kA | Allowable wear thickness of dynamic and static contacts | 3mm |
| Rated short circuit closing current (peak) | 50kA | Isolate the fracture to disconnect the distance | >200mm |
| 1.Ambient temperature: upper limit +40°ºC, lower limit-30°C; |
| 2.Altitude s 2000 meters |
| 3.Pressure: not more than 700Pa (corresponding to the wind speed 34m/s); |
| 4.Earthquake intensity: do not exceed 8 degrees; |
| 5.Pollution grade: Ill class; |
| 6.Maximum daily temperature variety less than 25ºC. |
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