Free maintenance ZW10-12 outdoor high voltage vacuum circuit breaker
1.vacuum circuit breaker with IEC standard
2.Rated voltage 12KV
3.Rated current 400/630
4.Rated short-circuit breaking current 12.5
2.Rated voltage 12KV
3.Rated current 400/630
4.Rated short-circuit breaking current 12.5
Ambient temperature:
max +40°C min -15°C(conveyance under -30°C is allowed)
2 Altitude: ≤1000m
3 Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%; daily average saturated vapor pressure ≤2.2*10-3 MPa; monthly average value ≤1.8*10-3 MPa
4 Earthquake intensity: ≤8 degree
5 The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution
Order instruction
Complete model and order quantity of the product
Rated current, rated voltage, distance of each poles
Rated short circuit breaking current, operation voltage
Required accessory and quantity
Other requirement please contact with us directly
| Main Technical Data | ||||
| Rated voltage | kv | 12 | ||
| Rated frequency | Hz | 50 | ||
| Rated lighting impulse withstand voltage | kv | Interphase or to ground 75,fructure 80 | ||
| Rated short-time power frequency withstand voltage | kv | Interphase or to ground 42,fructure 48 | ||
| Rated current | A | 400 | 630 | 630 |
| Rated short-circuit breaking current | kA | 12.5 | 16 | 20 |
| Rated short-circuit making current | kA | 31.5 | 40 | 50 |
| Rated short-time withstand current | kA | 12.5 | 16 | 20 |
| Rated peak withstand current | kA | 31.5 | 40 | 50 |
| Rated operations of short-circuit breaking current interruption | times | 30 | ||
| Rated operating sequence | 0-0.3-CO-180s -CO(electric mechanism) | |||
| Mechanical life | times | 10000 | ||
| Contact erosion limit | m | 3 | ||
| Rated operating voltage of opening and closing coil | v | AC,DC220 AC,DC110 | ||
| Rated working current of overcurrent and tripping coil | A | 5 | ||
| Current transformer current ratio of two times(normal) | 200/5,400/5,600/5 | |||
| Rated voltage of energy saving motor | v | AC,DC220 AC,DC110 | ||
| Power of energy saving motor | w | ≤200 | ||
| Closing time | ms | 20~40 | ||
| Opening time | ms | 30~60 | ||
| Weight | kg | 85 | ||
Mechanical characteristics adjustment data
Rated contact stroke 9±1mm
Contact overtravel 2±0.5mm
Average opening speed 1.2±0.3m/s
Average closing speed 0.6±0.2m/s
Contact bouncing duration at closing operation ≤2ms
Three-pole simultaneity ≤2ms
Condactive circuit resistance of each phases <80μΩ
