NAME: | Vacuum Circuit Breaker | Type: | Vacuum |
---|---|---|---|
Certify: | ISO9001 / GB / IEC | Model: | Zw32-12/630A |
High Light: | outdoor vcb breaker,indoor vcb panel |
high voltage outdoor permanent magnetic vacuum circuit breaker ZW32
The main technical parameter
Item | Unit | Parameter | ||||
12.5KA | 16KA | 20KA | ||||
Rated voltage | KV | 12 | ||||
Rated current | A | 400 | 630 | 630 | ||
Rated short open current | KA | 12.5 | 16 | 20 | ||
Rated short making current(peak) | 31.5 | 40 | 50 | |||
Rated peak withstand current | 31.5 | 40 | 50 | |||
Rated short withstand current | 12.5 | 16 | 20 | |||
Rated short duration | s | 4 | ||||
Rated isolation level | thunder impulse withstand voltage (peak ) | KV | Alternated to earth75 fracture85 | |||
1min power frequency withstand voltage | Alternated to earth 42 fracture85 | |||||
Rated operating sequence | close-0.3s- open and close-180s- open and close electromotion agency | |||||
Operations of short-circuit making current breaking current interruption | 30 | |||||
Mechanical life | 10000 | |||||
Rated operating voltage(open and close coil) | v | DC220 110 AC220 110 | ||||
Contact erosion permission length | mm | 3 | ||||
Rated current of over-current trip | A | 5 | ||||
Current ratio of mutual inductor | 200/5 400/5 600/5 | |||||
Rated contact stroke | mm | 9±1 | ||||
2±0.5 | ||||||
Average opening speed | m/s | 1.2±0.3 | ||||
Average closing speed | 0.6±0.2 |