Product name:  ZN63(VS1)-12 Side installation type indoor high voltage vacuum circuit breaker
1. Rated voltage: 12KV
2. Rated Frequency: 50HZ
3. Rated Current(A): 630.1250
4. Rated short-circuit breaking current(KA):20 25 31.5
5. Rated short-circuit closing current (KA): 50 63 80
6. Rated short-circuit duration(S): 4
7. Breaking times of Rated short-circuit breaking current: 50times
8. Rated operating sequence: 0-0.3s-CO-180s-CO
9. Mechanical life: 20000times
10. Contact distance(mm):11±1
11. Contact Over-travel(mm): 3.5±0.5
12. Average of Opening speed(m/s): 0.9~1.2
13. Average of Closing speed(m/s): 0.4~0.8
14. Three phase closing opening asynchrony(ms):≤2