VSG-12 1600A Vacuum Circuit Breaker | 12kV Fixed Solid Pole VCB
VSG-12 1600A High-Performance Vacuum Circuit Breaker High-reliability 12kV fixed-type breaker featuring Solid Pole technology. Designed for frequent switching and superior protection in industrial power grids and mining enterprises.Features a sealed solid pole to protect the vacuum arc extinguisher from dust, moisture, and collisions.Equipped with a modular VSG spring operating mechanism for stable, long-term performance.Strong environmental adaptability with reduced maintenance costs.Ideal for 12kV power systems requiring frequent short-circuit breaking.
VSG-12 1600A Vacuum Circuit BreakerOverview
The VSG-12 1600A is a high-reliability, indoor/outdoor fixed-type vacuum circuit breaker (VCB) designed for 12kV power systems. It serves as a critical protection and control unit for power grids and industrial/mining infrastructure. Engineered for frequent operations, it excels in breaking short-circuit currents and switching loads of various natures.
Key Technical Features
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Solid Pole Technology: Utilizes a sealed pole design to integrate the vacuum arc extinguisher and main conductive parts into a single unit. This provides superior protection against collisions, dust, and condensation.
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Integrated Mechanism: Adopts a modular VSG integrated spring operating mechanism for enhanced durability.
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High Stability: Offers a mechanical life of 30,000 cycles.
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Design Excellence: Features a compact, lightweight, and modular design with high transmission efficiency and standardized parts for easy inventory management.
Technical Specifications
| Parameter | Data |
| Rated Voltage | 12kV |
| Rated Frequency | 50Hz |
| Rated Current | 1600A (range up to 4000A) |
| Rated Short-circuit Breaking Current | 20/25/31.5/40/50kA |
| Mechanical Life | 30,000 times |
| Rated Operating Sequence | O-0.3s-CO-180s-CO |
| Power Frequency Withstand Voltage (1 min) | 42kV |
| Lightning Impulse Withstand Voltage (Peak) | 75kV |
Operating Conditions
To ensure optimal performance, the device should be installed under the following conditions:
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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: Not exceeding magnitude 8.
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Installation Site: Free from fire, explosion hazards, severe pollution, chemical corrosion, or intense vibration.
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