China Zn63[Vs1]-12~24kv Side Mounting Vacuum Circuit Breaker, Find details about China Circuit Breaker, Breaker from Zn63[Vs1]-12~24kv Side Mounting Vacuum Circuit Breaker
| sl.No | Item | Unit | Data | |||
| 1 | Rated voltage | KV | 12 | |||
| 2 | Maximum working voltage | KV | 12 | |||
| 3 | Rated Current | A | 630~1250 | 630~1600 | 630~1600 | |
| 4 | Rated short circuit breaking current | KA | 20 | 25 | 31.5 | |
| 5 | Rated short-circuit switching current | KA | 50 | 63 | 80 | |
| 6 | Rated peak withstand current | KA | 50 | 63 | 80 | |
| 7 | 4S rated short-circuit withstand current | KA | 20 | 25 | 31.5 | |
| 8 | Rated insulation level | 1min power frequency withstand voltage(rated breaking before and after) | KV | 42(fracture 48) | ||
| impulse withstand voltage(rated breaking before and after) | 75(fracture 84) | |||||
| 9 | Rated operating sequence | O-0.3S-CO-180S-CO | ||||
| 10 | Mechanical life | Times | 10000 | |||
| 11 | Rated short-curcuit current breaking times | Times | 50 | |||
| 12 | Rated Operating Mechanism Closing Voltage(DC) | V | AC,DC 110,220 | |||
| 13 | Rated Operating Mechanism Opening Voltage(DC) | V | AC,DC 110,220 | |||
| 14 | Contact opening distance | mm | 11 ±1 | |||
| 15 | Overtravel(the length of contact spring compression) | mm | 3.5±0.5 | |||
| 16 | Closing/Opening Time Difference Among Three Phase | ms | ≤2 | |||
| 17 | Contact closing bounce time | ms | ≤2 | |||
| 18 | Average opening speed | m/s | 0.9-1.2 | |||
| 19 | Average closing speed | m/s | 0.5-0.8 | |||
| 20 | Tripping Time | Maximum operating voltage | s | ≤0.05 | ||
| Minimum operating voltage | ≤0.08 | |||||
| 21 | Closing time | s | 0.1 | |||
| 22 | The main circuit resistance of each phase | 630≤50 1250≤45 1600≤40 | ||||
| 23 | Allowed Consumpted thickness of Contacts | mm | 3 | |||