ZHEJIANG XINKOU POWER EQUIPMENT CO.,LTD
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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 | |||||