| Rated Voltage of Main Circuit | kV | 12 |
| Rated Current of Main Circuit | A | 400(630) |
| Making Capacity of Main Circuit | A/100 times | 4000(6300) |
| Breaking Capacity of Main Circuit | A/10 seconds | 3200(5040) |
| Ultimate Breaking Capacity | kA/3 times | 4(6.3) |
| Electrical Life (AC4) | times | 10000 |
| Mechanical Life | times | 1,000,000 |
| Rated Operating Frequency (AC3) | times/h | 300 |
| Rated Operating Frequency (AC4) | times/h | 120 |
| Short - time Operating Frequency (within 20 seconds) | times/h | 600 |
| Contact Opening Distance | mm | 6±0.5 |
| Contact Overtravel | mm | 1.5±0.5 |
| Three - phase Synchronism | ms | ≤3 |
| Power Frequency Withstand Voltage | kV | 42 |
| Weight | kg | 30 |
| Overall Dimensions (Length×Width×Height) | mm | 470×215×540 |
| Installation Dimensions (Length×Width) | mm | 447×100 |
