| Rated voltage | 12kV |
| Rated current | 630/1250A |
| Rated frequency | 50Hz |
| Rated short-time power frequency withstand voltage(1min) | 42kV |
| Rated lightning impulse withstand voltage | 75kV |
| Rated short-circuit breaking current | 20/25kA |
| Rated short-circuit making current(peak) | 50/63kA |
| Breaking operations of rated short circuit breaking current | 30 times |
| Rated breaking current of single capaction bank | 400A |
| Rated short-time withstand current | 20/25kA |
| Rated peak withstand current | 50/63kA |
| Rated duration of short-circuit | 4s |
| Mechanical life | 20000 times |
| Contact closing force due to bellows and atmosphere | 80±40N |
| Counterforce at rated contact stroke | 120±50N |
| Circuit resistance at rated contact force | ≤25μΩ |
| Shelf life | 20years |
| Contact erosion limit | 3mm |
| Weight of moving parts | ≤1.3kg |
