VSG-12/1250A Vacuum Circuit BreakerIndoor 12kV Trolley Type Vacuum Circuit Breaker for Switchgear
The VSG -12 1250A Vacuum Connector (VCB) is a premium indoor clearance solution designed for medium voltage protection. VSG series joints are designed with gap technology to ensure safe and reliable operation in different industrial and commercial environments. As a Mark draw-out (trolley) style coupling, it is optimized for applications where clearance requires on-off operation, offering exceptional durability and minimal maintenance. “
Product overview
VSG-12/1250A Vacuum Circuit BreakerIndoor (VCB) is a high-quality indoor switch and protection component designed for 12kV AC, 50Hz systems. The VSG series adopts advanced vacuum arc extinguishing technology to ensure safe, reliable and stable operation in strict industrial and commercial power grids. This model features a draw-out (trolley) design and is designed for applications requiring on-off switch operation and high durability.
Main features and benefits
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Superior safety and reliability : Advanced vacuum technology ensures fast and reliable arc extinguishing, significantly improving operational safety.
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Low Maintenance Design : Built with minimal moving components to reduce the need for regular maintenance and reduce long-term operating costs.
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Performance : Features high short-circuit breaking capacity and fast response times to minimize possible system damage during faults.
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Environmentally Friendly Solution : A sustainable option for modern power grids as it is clear of SF6 , eliminating greenhouse gas emissions issues.
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Long Life : Designed for extended mechanical and electrical service life (up to 30,000 operations), ensuring high cycle environments for the next lifespan.
Technical specifications
| thing | unit | data |
| Rated voltage | Voltage | 12 |
| Rated frequency | hertz | 50 |
| Rated current | one | 1250 (supports 630A–4000A) |
| 1min PF pressure resistance | Voltage | 42 |
| Lightning impulse withstand voltage | Voltage | 75 |
| Short circuit breaking current | the | 20 / 25 / 31.5 / 40 / 50 |
| Short-time withstand current | the | 20 / 25 / 31.5 / 40 / 50 |
| Rated shortage duration | s | 4 |
| Mechanical consumption | operations | 30,000 |
Application areas
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Industrial facilities : Provide reliable protection and switching for manufacturing plants and processing units.
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Commercial Buildings : Ideal for office buildings, shopping malls and data center hubs.
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Supplement : Suitable for substations and public power grids requiring 12kV medium voltage control.
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