| Item | Description | Unit | Data | |
| 1 | Rated voltage | KV | 12 | |
| 2 | Max. voltage | KV | 12 | |
| 3 | Rated current | A | 1250/1600/2000/2500/3150 | |
| 4 | Rated break current on shorting | KA | 31.5/40/50 | |
| 5 | Rated short circuit making current | KA | 80/100/125 | |
| 6 | Rated peak withstand current | KA | 80/100/125 | |
| 7 | 4S Rated withstand current | KA | 31.5/40/50 | |
| 8 | Rated insulation level | Power frequency voltage(when losing a circuit) | KV | Dreaker 48 |
| Impulse withstand voltage(when losing a circuit) | Dreaker 84 | |||
| 9 | Rated operating sequence | OC-0.3s-CO-180S-CO | ||
| 10 | Mechanical life | Times | 10000 | |
| 11 | Open circuit times of rated short dropout current | Times | 50 | |
| 12 | Rated close brake voltage of operating machnie | V | 110,220 | |
| 13 | Rated break brake voltage of operating machnie | V | 110,220 | |
| 14 | Clearance between open contacts | mm | 11±1 | |
| 15 | Exceed range(the compress length of contact sping) | mm | 4±0.5 | |
| 16 | Different period of three-phase break and close break | ms | ≤2 | |
| 17 | The jump time of contact close break | ms | ≤2 | |
| 18 | Average break speed | m/s | 0.9~1.2 | |
| 19 | Average closing speed | m/s | 0.6~1.2 | |
| 20 | Opening time | Ubder max.operating voltage | S | ≤0.05 |
| Under min.operating voltage | ≤0.08 | |||
| 21 | Closing time | s | ≤0.1 | |
| 22 | Resistance of each phase main loop | μΩ | ≤40 | |
| 23 | Contacts limit ersion | mm | 3 | |
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