| Breaking Capacity: | High Voltage Circuit Breakers |
|---|---|
| Operation: | Energy-storage Type |
| Speed: | Normal Type Circuit Breaker |
| Arc-extinguishing Medium: | Vacuum |
| Installation: | Insert |
| Structure: | Vcb |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier 
Summary
The permanent magnet operating mechanism and the vacuum interrupter of the 12/M vacuum circuit breaker adopt front and rear arrangement,. The main conductive circuit is a floor-standing structure. The upper and lower outlet seats and the vacuum interrupter are installed in a tubular insulating cylinder. Inside. The insulating cylinder is made of epoxy resin by APG process.This structure can prevent dust accumulation on the surface of the vacuum arcing chamber and prevent it from being damaged by external factors. It can ensure that the product still has good insulation performance in the humid and hot environment and serious pollution.
Main technical parameters
Table 1. Technical parameters
| No | Item | Unit | Specification | ||||||
| 1 | Rated Voltage | kV | 12 | ||||||
| 2 | Rated Current | A | 630 | 1000,1250 | 1600,2000,2500,3150 | ||||
| 3 | Rated short circuit breaking current | kA | 20 | 25 | 20 | 25 | 31.5 | 31.5 | 40 |
| 4 | Rated peak withstand current | kA | 50 | 63 | 50 | 63 | 80 | 80 | 100 |
| 5 | Rated short-time withstand current | kA | 20 | 25 | 20 | 25 | 31.5 | 31.5 | 40 |
| 6 | Rated short circuit closing current | kA | 25 | 63 | 25 | 63 | 80 | 80 | 100 |
| 7 | Breaking times of short circuit current | times | 50 | 30 | |||||
| 8 | Rated operating sequence | O-0.3s-CO-180s-CO,O-180s-CO-180s-CO(40kA) | |||||||
| 9 | Mechanical life | times | 30000(small current) 20000(heavy current) | ||||||
| 10 | Breaking times of rated current | times | 30000(small current) 20000(heavy current) | ||||||
| 11 | Rated lightning impulse withstand voltage (full wave) | kV | 75 | ||||||
| 12 | Rated short-time power frequency withstand voltage | kV/min | 42 | ||||||
Table 2.Parameters of circuit breakers with capacitors
| No | Item | Unit | Specification |
| 1 | Travel of the contact | mm | 11±1 |
| 2 | Over-travel of the contact | mm | 3.5±0.5 |
| 3 | Closing speed | m/s | 0.6±0.2 |
| 4 | Opening speed | m/s | 1.1±0.3 |
| 5 | Contact closing bounce time | ms | ≤2,≤3(40kA) |
| 6 | Three-phase contact closing and opening synchronization | ms | ≤2 |
| 7 | Closing time | ms | ≤22 |
| 8 | Opening time | ms | ≤20 |
| 9 | Energy storage loop supply voltage | V | 110,220 |
| 10 | Energy storage loop current | A | ≤0.5(Before the capacitor is full),≤0.01(After the capacitor is full) |
| 11 | Energy storage time | s | ≤10,First charge time≥30 |
| 12 | Closing control voltage | V | 110,220 |
| 13 | Opening control voltage | V | 110,220 |
| 14 | Closing control current | A | 0.2 |
| 15 | Opening control current | A | 0.2 |
| 16 | Main loop resistance | μΩ | ≤60(630A),≤45(1250A),≤30(2000A above) |
| 17 | Phase distance | mm | 210,275(40kA) |
Table 3.Parameters of circuit breakers with capacitors
| No | Item | Unit | Specification |
| 1 | Travel of the contact | mm | 11±1 |
| 2 | Over-travel of the contact | mm | 3.5±0.5 |
| 3 | Closing speed | m/s | 0.6±0.2 |
| 4 | Opening speed | m/s | 1.1±0.3 |
| 5 | Contact closing bounce time | ms | ≤2,≤3(40kA) |
| 6 | Three-phase contact closing and opening synchronization | ms | ≤2 |
| 7 | Closing time | ms | ≤75 |
| 8 | Opening time | ms | ≤65 |
| 9 | Energy storage loop supply voltage | V | DC220-DC240V(From DC screen) |
| 10 | Energy storage circuit closing current | A | 35<I<55(Small current) |
| 11 | Energy storage circuit opening current | A | 10<I<20 |
| 12 | Energy storage circuit closing time | ms | ≤60 |
| 13 | Energy storage circuit opening time | ms | ≤25 |
| 14 | Closing control voltage | V | 110,220 |
| 15 | Opening control voltage | V | 110,220 |
| 16 | Closing control current | A | 0.2 |
| 17 | Opening control current | A | 0.2 |
| 18 | Main loop resistance | μΩ | ≤60(630A),≤45(1250A),≤30(2000A the above) |
| 19 | Phase distance | mm | 210,275(40kA) |
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 
){kind=link}
){kind=link}