| Breaking Capacity: | High Voltage Circuit Breakers |
|---|---|
| Operation: | Energy-storage Type |
| Speed: | Normal Type Circuit Breaker |
| Arc-extinguishing Medium: | Vacuum |
| Installation: | Insert |
| Structure: | Vcb |
| Customization: |
|---|
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Summary
VBI-12 Indoor High Voltage Vacuum Circuit Breaker is three-phase AC 50Hz, Rated voltage of 12kV indoor device, For industrial and mining enterprises, power plants and substations as electrical equipment control and protection purposes, and for frequent operation of the place.
VBI type vacuum circuit breaker conforms to national standard GB1984-2003 HV Vacuum Circuit Breaker, JB3855-1996<3.6-40.5kV indoor AC high voltage vacuum circuit breaker>, DL/T403-2000<12kv-40.5kv HV vacuum circuit breaker ordering technical conditions>, and IEC62271-100:2001 high voltage AC circuit breaker relevant regulations.
Applying Ambient Conditions
1.Ambient temperature: -25ºC- +40ºC
2.The height above sea level: ≤1000 m
3.Relative humidity: the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%.
4.Saturated vapor pressure: the average pressure of a day should be no mare than 2.2kPa; the average pressure of a month should be no more than1.8KPa, when the temperature drops sharply, it may condense.
5.Earthquake intensity: not exceed 8 degrees
6.It should be Installed in the places without fire, explosion, serious pollution, chemical erosion and violent vibration.
Main technical parameters
| NO. | Item | Unit | Data |
| 1 | Rated voltage | KV | 12 |
| 2 | Rated insulation level 1min power frequency withstand voltage | KV | 42 |
| 3 | Rated insulation level rated lighting impulse withstand voltage | KV | 75 |
| 4 | Rated current | A | 630/1250/1600 |
| 5 | Rated short circuit breaking current | KA | 20/25 |
| 6 | Rated short-circuit opening and closing current(peak) | KA | 50/63 |
| 7 | Rated dynamic current(peak) | KA | 50/63 |
| 8 | Rated thermal stability current(rms) | KA | 20/25 |
| 9 | Rated short circuit current breaking times | time | 50,20 |
| 10 | Rated thermal stability time | s | 4 |
| 11 | Rated operating sequence | / | O-0.3S-CO-180S-CO |
| 12 | Mechanical life | time | 10000 |
| 13 | Rated single capacitor bank breaking current | A | 630 |
| 14 | Rated back to back capacitor bank breaking current | A | 400 |
FAQ
Q: Could I have prices of your products?
A: Welcome. Please feel free to send us inquiry here. We will reply you within 24 hours.
Q: Can I get a sample before the bulk order?
A: Yes, we welcome sample order to test and check quality.Mixed samples are acceptable.
Q: Can we print our logo/ company name on products?
A: Yes, of course, we accept OEM, then need you to provide brand authorization to us
Q:Do you accept product customization?
A:Yes, of course, please provide specific drawings or parameters, we will quote you after evaluation
Q: What is the lead time?
A: The lead time depends on the quantities ordered, generally within 7-20 days after receiving the payment.
Q: What is your Trade Terms?
A: We accept EXW, FOB, CIF, FCA, etc.
Q: What is your payment method?
A: We accept T/T, Western Union, Paypal, irrevocable L/C at sight, etc
Q: Do you inspect the finished products?
A: Yes, each step of production and finished products will be came out inspection by QC department before shipping. And we will provide goods inspection reports for your reference before shipment
Q: How to solve the quality problems after sales?
A: Take photos of the quality problems and send to us for our checking and confirming, we will make a satisfied solution for you within 3 days.
Suppliers with verified business licenses
Audited Supplier 
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