VCB circuit breaker with 40kv for sale. The entire structure of vacuum circuit breaker presents the integrated installation off-switch body and operating mechanism. VCB breaker price is affordable and suit for engineering programs.
Features:
- 40.5kV vacuum circuit breaker with Ideal contact material and shape, ensuring low current carrying value and stable contact resistance.
- Integrated design of main conductive circuit made of compound isolation material and operating mechanism.
- Few components and parts, compact and logical structure, assuring more reliable and safer operation.
- VCB breaker adopts the composite insulation structure, with high insulation level,no pollution or explosion danger.
- Compact design enables the breaker to be installed within almost all switchgears.
- Superior cost performance, vacuum circuit breaker is the ideal choice for engineering programs.
Specification: (Parameters can be customized)
| Model | CHN-VCB-40 |
| Rated voltage | 40 kV |
| Maximum operating voltage | 12 kV |
| Rated current | 630 A, 1000 A, 1250 A, 1600 A, 2000 A, 3150 A |
| Rated short circuit breaking current | 20/25 kA, 31 kA, 40 kA, 50 kA |
| Rated short circuit switching current | 50/63 kA, 80 kA, 100 kA, 125 kA |
| Rated peak withstand current | 50/63 kA, 80 kA, 100 kA, 125 kA |
| 4S Rated short-time withstand current | 20 kA, 31 kA, 40 kA, 50 kA |
| Rated insulation level | power frequency withstand voltage (rated open circuit before and later): 42 kV |
| impulse withstand voltage (rated open circuit before and later): 75 kV |
| Mechanical life | 20000 times |
| Rated closing voltage of operating mechanism (DC) | 110 V, 220 V |
| Rated switching voltage of operating mechanism (DC) | 110 V, 220 V |
| Contactor torque | 11±1 |
| Exceed range (the compress length of contact spring) | 4±0.5 |
| Max.bouncing duration | ≤ 2 |
| Average opening speed | ≤ 0.05 |
| Average closing speed | ≤ 0.08 |
| Opening time | ≤ 50 |
| Closing time | ≤ 100 |
| Accumulative allowable wear thickness of dynamic and static contacts | 3 mm |
| Certification | CE |
| Warranty | 12 months |
Dimensions: (Unit: mm)
Schematic Diagram:

Tips: What Information Should You Pay Attention to When Ordering?
- Vacuurn circuit breaker's name, model, main technical data and order quantity.
- Vacuurn circuit breaker's rated voltage and rated current and rated short-circuit breaking current, vacuurn circuit breaker's operation mechanism mode and control voltage.
- Spare parts narne and quantity, rated voltage of tripping and closing coil; Other questions or special requirements please contact with manufacturer.
Lower cost vacuum circuit breaker with 40kv rated voltage for sale online. Indoor vacuum circuit breaker has a switching capacity capable of handling the loads occurring at start-up and shutdown. Opening time is 30ms~60ms, closing time is 50ms~100ms. Acting to protect and control line is the function of vcb.