VSM-12 Vacuum Circuit Breaker – High Quality Handcart Type Permanent Magnet Mechanism
Key Features:
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Advanced Design: Features a front-and-rear arrangement of the permanent magnet mechanism and vacuum interrupter.
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Embedded Pole Technology: Utilizing the APG process, the epoxy resin embedded pole protects the vacuum arcing chamber from dust and external damage.
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Extreme Durability: Maintains superior insulation performance in humid, hot, and highly polluted environments.
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Maintenance-Free: High reliability and long service life with intelligent control and maintenance-free operation.
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Eco-Friendly: A green product that ensures zero pollution to the surrounding environment during use.
Applications: Suitable for indoor air-insulated installations, urban/rural grid renovation, mines, and railways.
VSM-12 Vacuum Circuit Breaker – High Quality Handcart Type Permanent Magnet Mechanism
The VSM-12 series represents the next generation of indoor vacuum circuit breakers, featuring a highly reliable permanent magnet operating mechanism. Its innovative front-and-rear arrangement integrates the operating mechanism with the vacuum interrupter into a floor-standing, withdrawable structure.
Core Technical Advantages
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APG Embedded Pole Technology: The vacuum interrupter is housed within an epoxy resin embedded pole created via the advanced APG process. This structure prevents dust accumulation and protects the unit from external environmental damage.
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Superior Environmental Resilience: Specifically engineered to maintain exceptional insulation performance in humid, hot, and heavily polluted environments.
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Maintenance-Free Operation: Leveraging advanced intelligent technology, the VSM-12 offers high reliability and an extra-long service life, remaining virtually maintenance-free throughout its operation.
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Eco-Friendly “Green Product”: The unit operates with zero pollution to the surrounding environment, meeting modern sustainability standards.
Key Technical Specifications
Based on the provided technical data, here are the primary performance parameters:
| Item | Specification | Unit |
| Rated Voltage | 12 | kV |
| Rated Current | 630 / 1000, 1250 / 1600, 2000, 2500, 3150 | A |
| Rated Short-circuit Breaking Current | 20, 25, 31.5, 40 | kA |
| Mechanical Life | 30,000 (Small current) / 20,000 (Large current) | Times |
| Rated Lightning Impulse Withstand Voltage | 75 | kV |
| Rated Short-time Power Frequency Withstand Voltage | 42 | kV |
Versatile Applications
The VSM-12 is designed for indoor air-insulation installations and is essential for opening and closing various power loads in:
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Power Grid Construction: Urban and rural network renovation.
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Industrial Infrastructure: Reliable power control for mines and heavy industry.
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Railway Systems: Stable electrical distribution for railway networks.
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