| Item | Unit | Parameter |
| Rated voltage | kV | 12 24 40.5 |
| Rated frequency | Hz | 50 |
| Rated current | A | 630/1250/2500/3150/4000/630/1250/2500 |
| Power frequency withstand voltage (phase-to-phase and phase-to-ground) | kV | 42 65 95 |
| Power frequency withstand voltage (insulation breaking) | kV | 48 79 118 |
| Lightning impulse withstand voltage (phase-to-phase and phase-to-ground) | kV | 75 125 185 |
| Lightning impulse withstand voltage (insulation breaking) | kV | 85 145 215 |
| Rated power frequency withstand voltage of auxiliary circuit | kV | 2 |
| Rated instantaneous withstand current | kA | 25/31.5/40 |
| Rated short-circuit period | s | 3 |
| Rated peak withstand current | kA | 63/80/100 63/80/100 50/63/80 |
| Rated short-circuit breaking current of circuit breaker | kA | 25/31.5/40 25/31.5/40 25/31.5 |
| Rated short-circuit closing current of circuit breaker (peak) | kA | 63/80/100 63/80/100 50/63/80 |
| Rated cable charge breaking current | A | 25 |
| Rated operating sequence | O-0.3s-CO-3min-CO | |
| Insulation gas | SF6 | |
| Mechanical life | Time | 10000 |
| Three-position switch | Time | 5000 |
| Rated charge pressure (abs, 20°C) | Mpa | 0.14 |
| Minimum charge pressure (abs, 20°C) | Mpa | 0.12 |
| Sealed enclosure | Grade | IP67 |
| Switch shell | Grade | UP4X |
| Annual relative leak rate of dry air | %/year | ≤0.1 |
| Rated power voltage of auxiliary circuit | V | DC48/110/220 AC220 |

