| Item | Unit | Data |
| 1 | rated voltage | kv | 12 |
| 2 | max work voltage | kv | 630 |
| 3 | rated current | a | 1250 |
| 4 | rated short circuit breaking current | ka | 20 |
| 5 | rated short-circuit closing current | ka | 50 |
| 6 | rated peak values withstand current | ka | 50 |
| 7 | 4S rated short-circuit withstand current | ka | 20 |
| 8 | frequency voltage(about rated breaking) | kv | 40 |
| 9 | rated sequence of operation |
| /-0.3-180-/ |
| 10 | life of machine | times | 1000 |
| 11 | rated short-circuit breaking current breaking times | times | 50 |
| 12 | Operating mechanism rated closing voltage ( DC ) | v | 110220 |
| 13 | Contact travel | mm | 11±1 |
| 14 | over travel | mm | 3.5±0.5 |
| 15 | Three-phase, bounce time | ms | ≤2 |
| 16 | contactor closing bounce time | ms | ≤2 |
| 17 | Average opening speed | m/s | 0.9~0.12 |
| 18 | Average closing speed | m/s | 0.4~0.8 |
| 19 | max operation of voltage | s | ≤0.05 |
| min operation of voltage | s | ≤0.08 |
| 20 | closing time | s | 0.1 |
| 21 | Each phase main loop resistance | uΩ | 60 |
| 22 | The moving and static contacts, allowed to wear a cumulative thickness | mm | 3 |
