Loading…
Product type
A vacuum circuit breaker (VCB) is an electrical device designed to protect and control electrical circuits by interrupting the flow of current in the event of a fault. It operates by creating a vacuum between its contacts, which allows it to extinguish the arc that forms when the circuit is interrupted. This design provides high reliability and minimizes maintenance needs, making it suitable for various applications in power distribution systems.
| Operating voltage range | Up to 36 kV |
| Rated current | Up to 3,000 A |
| Interrupting capacity | Up to 63 kA |
| Insulation type | Air or SF6 insulated |
| Mechanical life | Up to 10,000 operations |
| Control voltage | DC or AC options available |
When selecting a vacuum circuit breaker, consider the operating voltage and current ratings that match your application requirements. It's essential to specify the interrupting capacity needed for fault conditions and the type of insulation preferred. Additionally, inquire about the mechanical life and control voltage options. Certifications and compliance with relevant standards should also be confirmed to ensure reliability and safety in your installation.
Get quotes for Vacuum Circuit Breaker
Tell us your requirement — quantity, specs and timeline — and our team sources verified manufacturers and brings you the best quote.
The main advantage is its ability to extinguish arcs efficiently, leading to lower maintenance and increased reliability.
It works by creating a vacuum between its contacts, which allows the arc to be extinguished quickly when the circuit is interrupted.
VCBs are typically used in power generation, industrial facilities, and utility substations.
VCBs can have a mechanical life of up to 10,000 operations, depending on usage and maintenance.
Yes, but they require appropriate insulation and housing to protect against environmental factors.
Look for certifications that comply with international standards such as IEC or ANSI.