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Product Details:
Category：Vacuum Circuit Breaker
Name：Outdoor high voltage circuit breaker
Model：ZW20-12
Packing：Plastic bag & Wooden case or as requested
Delivery & Payment Terms:
Shipping time： Usually 30 days after the ordered confirmed
Payment：T/T, L/C, Western Union or Paypal
Trade term：FOB China port, or CIF
Technical Data
| 1 | Rated voltage | KV | 12 |
| 2 | Frequency | HZ | 50 |
| 3 | Rated current | A | 630, 1000 |
| 4 | Rated short-circuit breaking current | KA | 12.5, 16, 20, 25 |
| 5 | Rated withstand current(peak) | KA | 31.5, 40, 50, 63 |
| 6 | Rated short-time withstand current(4s) | KA | 12.5, 16, 20, 25 |
| 7 | Rated short-circuit making current(peak) | KA | 31.5, 40, 50, 63 |
| 8 | Mechanical life | Times | 10000 |
| 9 | Rated short-circuit breaking time | Times | 30 |
| 10 | 1min P.F withstand voltage-dry(phase to phase, to earth; across open contacts) |
KV | 42/49/60 |
| 11 | Lightning impulse withstand voltage peak (phase to phase, to earth; across open contacts) |
KV | 75/85/125 |
| 12 | P.F withstand voltage for secondary loop | KV | 2 |
| 13 | Net weight | KG | 140 |
| 14 | SF6 rated gage pressure | Mpa | 0 |
Mechanical Properties Data
| 1 | Rated contact stroke | mm | 9 ±1 |
| 2 | Average opening speed | m/s | 1.1±0.2 |
| Average closing speed | m/s | 0.6±0.2 | |
| 3 | Three-pole simultaneity | ms | ≤5 |
| 4 | Three-pole simultaneity (assembled with isolator) | ms | ≤2 |
| 5 | Distance of charged body and relative air | mm | ≤2 |
| 6 | Core distance between phases | μΩ | ≤200 |
Outline Dimension
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