VSG-12 2000A Vacuum Circuit Breaker – Fixed Pole Handcart Indoor High Voltage Vacuum Circuit Breaker
VSG-12 2000A solid-pole vacuum circuit breaker is a high-performance indoor vacuum circuit breaker specially designed for 12kV-40.5kV power systems. It adopts advanced sealed pole (solid pole) design to provide excellent insulation performance and protection against harsh environmental factors. This handcart-type circuit breaker is perfectly compatible with KYN28A-12 switchgear, providing excellent reliability for power plants, industrial facilities and substations requiring frequent switching operations.
Product overview
VSG-12 2000A Vacuum Circuit Breaker is suitable for switching various loads and frequent operations in three-phase AC 50Hz, rated voltage 7.2kV-40.5kV power systems. It is widely used in industries, mines, enterprises, and power plants, and is fully compatible with center-mounted handcart switch cabinets such as KYN28A .
Main features and benefits
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Excellent safety and reliability : Advanced vacuum technology ensures fast and reliable arc extinguishing, significantly improving operational safety.
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Buried Electrode Design (Fixed Electrode) : Utilizes buried pole technology to enhance dielectric strength and provide superior protection against dust, moisture and contamination.
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Low Maintenance Design : Featuring a robust VSG spring operating mechanism ensuring fast changeover and minimal regular maintenance.
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Compact and Rugged : Designed for space-saving installation without compromising performance or safety.
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Long Mechanical Life : Designed for high cycle environments, with a mechanical life of up to 30,000 operations .
Technical specifications
| Technical parameters | unit | data |
| Rated voltage | Voltage | 12 |
| Rated current | one | 2000 (supports 630A–4000A) |
| Rated frequency | hertz | 50 |
| 1min PF pressure resistance | Voltage | 42 |
| Lightning impulse withstand voltage | Voltage | 75 |
| Short circuit breaking current | the | 20 / 25 / 31.5 / 40 / 50 |
| Rated short circuit duration | s | 4 |
| Mechanical life | operations | 30,000 |
Application environment
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Ambient temperature : -25°C to +40°C.
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Altitude : ≤1000 meters.
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Relative humidity : daily average ≤95%; monthly average ≤90%.
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Earthquake intensity : no more than 8 degrees.
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Environment : Suitable for places without fire, explosion, heavy pollution, or severe vibration.
Selection details for VSG-12 2000A Vacuum Circuit Breaker
To confirm the required vacuum circuit breaker configuration for your project, include:
- Rated voltage, continuous current and short-circuit breaking current
- Fixed or withdrawable arrangement, pole spacing and cabinet dimensions
- Closing/tripping and charging-motor voltages, secondary plug and interlocking interfaces
Drawings and quotation requirements
Send the model reference, application, quantity and destination country together with the relevant drawing or existing equipment information. Confirm the selected configuration against a model-specific drawing and ratings sheet before ordering; request the applicable test documentation for your project requirements.
Request model confirmation and a technical quotation · Compare related 12kV Vacuum Circuit Breaker / Vacuum Circuit Breaker.
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