| Table 1 | Unit | ZW32-12/630-20 | ZW32-12/630-25 | |
| Rated voltage | kV | 12 | ||
| Rated current | A | 630 1250 | ||
| Rated short-circuit breaking current | kA | 20 | 25 | |
| Rated short-circuit closing current(peak) | 50 | 63 | ||
| Rated peak withstand current | 50 | 63 | ||
| Rated short-time withstand current | 20 | 25 | ||
| Rated short-circuit continuous time | s | 4 | ||
| Rated insulation level | Lightning impulse withstand voltage (peak) | kV | Interphase, to ground 75, fracture85 | |
| 1min power frequency withstand voltage | Interphase, to ground 42, fracture48 | |||
| Rated operation sequency | O-0.3s-CO-180s-CO(Electric operation) | |||
| Rated short-circuit current breaking time | Cycles | 30 | ||
| Electrical life | 10000 | |||
| Rated operating voltage (Opening and closing coil) | V | DC220,110,AC220 | ||
| Moving and fixing contacts allowable accumulated thickness | mm | 3 | ||
| Rated current of over-current tripping | A | 5 | ||
| Current ration of current transformer (regular) | 200/5 400/5 630/5 | |||
| Contact opening distance | mm | 9±1 | ||
| Contact overstroke | 2⁺¹₋₀.₅ | |||
| Average opening speed | m/s | 1.2±0.2 | ||
| Average closing speed | 0.6±0.2 | |||
| Opening time | ms | 15~50 | ||
| Closing time | 25~80 | |||
| Closing tripping time | ≤2 | |||
| Three phase opening and closing synchronism | ≤2 | |||
| Each phase circuit DC resistance | mΩ | ≤80 | ||
| Energy storage motor | Rated voltage | V | DC/AC 220 | |
| Rated power | W | 70 | ||
| Energy storage time | S | ≤8 | ||
| Weight | kg | 100 | ||
Diagram 1 ZW32-12 Outdoor high voltage vacuum circuit breaker
Diagram 2 ZW32-12(G) Outdoor high voltage vacuum circuit breaker
Diagram 3 ZW32-12(G) Outdoor high voltage vacuum circuit breaker installation dimension
