| Item | Unit | Data |
Rated voltage |
kV | 12 |
Rated frequency |
Hz | 50 |
Rated current |
A | 630 |
Rated short current breaking voltage |
kA | 20 |
Rated peak withstand current (peak) |
kA | 50 |
Rated short time withstand current/continuous time |
kA/s | 20/4 |
Rated short current breaking current (peak) |
kA | 50 |
Rated operation sequence |
O-0.3s-CO-180s-CO | |
Mechanical life |
Time | 10000 |
Breaking times of rated short current breaking current |
Time | 30 |
Power frequency withstand voltage (1min) |
kV | - 34 42/48 |
Light impulse withstand voltage (peak) phase to phase, earth to earth/fracture |
kV | 75/85 |
Secondary current 1min power frequency withstand voltage |
V | 2000 |
Storage motor rated power |
W | ≤40 |
Rated operation voltage |
V | AC220V,AC220V |
| Parameter | Unit | Data |
| Clearance between open contact | mm | 9±1 |
| Contact overtravel | mm | 2±0.5 |
| Closing speed | m/s | 0.6±0.2 |
| Opening speed | m/s | 1.2±0.3 |
| Bounce time contact closing | ms | ≤2 |
| Three-phase closing and opening respectively | ms | ≤2 |
| Each phase conduct loop resistance | µΩ | 120 |
| Closing time | ms | 30~60 |
| Opening time | ms | 20~40 |