| No. | Parameter name | Unit | Value | |
| 1 | Rated voltage | kV | 1.14 | |
| 2 | Rated current | A | 250 | |
| 3 | Rated frequency | Hz | 50 | |
| 4 | Rated put through current | A | 2500 | |
| 5 | Rated breaking current | A | 2000 | |
| 6 | Limiting breaking current | A | 2500 | |
| 7 | Rated short-time withstand current | A | 2000 | |
| 8 | Rated short-time withstand voltage | kA | 10 | |
| 9 | Mechanical life | time | 1000000 | |
| 10 | Rated breaking time | AC3 Series | time | 150000 |
| AC4 Series | 6000 | |||
| 11 | Contact antomatic blocking ability | N | 50±10 | |
| 12 | Force required to hold contacts open at full stork | N | 60±10 | |
| 13 | Contact automatic blocking ability loop electrical resistance | μΩ | ≤120 | |
| 14 | Contact-wear allowance tickness | mm | 2 | |
| 15 | Shelf life | year | 20 | |
| 16 | Internal gas pressure | Pa | ≤1.33×10-3 | |