PRODUCT SHOW
ZW8-12G/630-20 Outdoor use,pole mounted dry type vacuum circuit breaker
Application
As outdoor AC high voltage switchgear of three-phase 50HZ,the ZW8-12series outdoor AC high voltage vacuum circuit-breaker mainly serves in the urban and rural power network of 10kV to make andf break load current,coverload current and short-circuit and in the similar occasions as well.
Main technical parameter
| Rated voltage | 12KV | |
| Rated current | 630A | |
| Rated insulation level | 1 min power frequency withstand voltage | 45KV |
| lightning impulse withstand voltge (peak value) | 75KV | |
| Rated short- circuit breaking current | 12.5KA,16KA,20KA | |
| Rated short-ciruit making current(peak value) | 31.5KA,40KA,50KA | |
| Rated peak withstand current | 31.5KA,40KA,50KA | |
| Rated short-time withstand current(4s) | 12.5KA,16KA,20KA | |
| Machanical endurance | 10000 times | |
