1. ZN12-12 Types 12KV 11KV indoor Automatic Power Circuit Breaker 630A 1250A
ZN12-12 12KV 11KV vacuum circuit breaker is three-phase ac 50 hz. indoor high voltage switch.
It is Suitable for sit power plant, Substation and power transmission and distribution system control or protection switch, especially suitable for open circuit important load and frequent operation place.
This vacuum circuit breaker can match used for various types of interval type. Armored type metal-enclosed switchgear. This series of vacuum circuit breaker operation mechanism for spring store type, can using ac or dc operate, and also can use handle operation.
2. Product Parameter list
| no. | item | unit | data |
| 1 | 2 | 3 | 4 | 5 |
| 1 | rated voltage | kv | 12 | 12 | 12 | 40.5 | 40.5 |
| 2 | rated current | A | 1250 | 1600 | 2000 | 1600 | 2000 |
| 3 | rated short circuit breaking current | KA | 31.5 | 31.5 | 31.5 | 25 | 31.5 |
| 4 | Dynamic and stable current (peak) | KA | 100 | 100 | 100 | 80 | 100 |
| 5 | Thermal stability of 4 s current 50 ka (3 s) | KA | 31.5 | 31.5 | 31.5 | 25 | 25 |
| 6 | The rated short circuit close current (peak value) | KA | 100 | 100 | 100 | 80 | 80 |
| 7 | Rated short circuit breaking current times | TIME | 50 | 30 |
3. Applicate
No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.
Relative humidity: daily average of not more than 95%, month average of not more than 90%.
Altitude: not exceed 1000m.
Earthquake intensity: not more than ten.
Ambient temperature: not higher than +40 °C, not less than -15°C
4. Photo and drawing
5. Factory
6. Delivery
7. FAQ
1. Technology ensure the quality satisfy international request.
2．Generally we promise one - two years quality guarantee, some products will be extended longer time for life span.
3. For tender cooperation, it is welcome to discuss the detail in between.
4. Some type reports are provided accordingly.
5. Our factory is 250000m2 for production and office.
6. There are four subsidies in our group company. So our whole group company can produce switchgear, power transformer, load break switch, disconnect switch, vacuum/sf6 circuit breaker, fuse, surge arrester, CT PT, Metering unit.
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ZN12-12 11KV 630A 1250A Indoor Automatic Power Circuit Breaker Images
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