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Product Details:
Category：Vacuum Circuit Breaker
Name：Outdoor high voltage circuit breaker
Model：ZW32-12 (12kV, 630A)
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
Environment condition
– Ambient temperature: max +40°C min -40°C
– Altitude: ≤2000m
– Wind pressure: ≤700Pa(equals to wind speed 34m/s)
– Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%
– Air contamination degree: IV degree
– Earthquake intensity: ≤8 degree
– Not be contaminated by corrosive or flammable gas
– No frequent violent vibration or explosive place
Technical Data
| 1 | Rated Voltage | KV | 12 |
| 2 | Rated frequency | HZ | 50 |
| 3 | Rated current | A | 630 |
| 4 | Rated short circuit breaking current | KA | 12.5, 16, 20, 25 |
| 5 | Rated peak withstand current (peak value) | KA | 31.5, 40, 50, 63 |
| 6 | Rated short-time withstand current | KA | 12.5, 16, 20, 25 |
| 7 | Rated short circuit closing current (peak value) | KA | 31.5, 40, 50, 63 |
| 8 | Mechanical life | Times | 10000 |
| 9 | Rated short circuit breaking current times | Times | 30 |
| 10 | Power frequency withstand voltage(1min): (wet)(dry) same, earth / fracture | KV | 42/48 |
| 11 | Lightning impulse withstand voltage (peak value) same, earth / fracture | KV | 75/85 |
| 12 | Secondary circuit 1min power frequency withstand voltage | KV | 2 |
| 13 | Rated operating voltage and rated voltage of auxiliary loop | V | AC220, 110 DC220, 110 |
| 14 | Rated current of over-current tripper | A | 5 |
| 15 | Rated short-circuit duration | s | 4 |
Mechanical characteristics adjustment data
| 1 | Rated contact stroke | mm | 9 ±1 |
| 2 | Average opening speed | m/s | 1.1±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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