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VSY1-12 Mounted Vacuum Circuit Current Breaker.jpg
VSY1-12 Mounted Vacuum Circuit Current Breaker.jpg

China VSY1-12 12kV Mounted Vacuum Circuit Current Breaker VCB - Reliable Suppliers and Factory Solutions

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The VSY1-12 Mounted Vacuum Circuit Current Breaker is a top-tier solution for 12kV electrical systems, crafted by leading China manufacturers. With a rated current capacity of up to 2000A and a breaking capacity of 31.5kA, this circuit breaker is engineered for reliability and efficiency. It operates seamlessly in a wide temperature range from -15°C to +40°C and can function at altitudes up to 1000m, with additional insulation options available for higher elevations. Built to endure high humidity and seismic conditions up to intensity 8, the VSY1-12 is ideal for various environments. Featuring a fast operation mechanism and a spring energy storage system, this vacuum circuit breaker guarantees safe and reliable performance with minimal maintenance, making it a preferred choice among suppliers and factory operators alike in stable, non-hazardous settings.

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    Product Details

    Type Designation

    Brand: MINGRI
    Product Name: Three-Position Vacuum Circuit Breaker
    Model: VSY1-12
    Rated Voltage: 12kV
    Rated Current: 630A
    Peak Withstand Current: 20KA
    Energy Storage Time: ≤15S
    Operating Temperature: -10℃ - 40℃

    Normal Use Environment

    Suitable for ambient temperatures from -15°C to +40°C and altitudes up to 1000m (with adjustable insulation for higher elevations). Withstands high humidity (95% daily, 90% monthly averages) and seismic activity up to intensity 8. Designed for use in environments free from explosion, severe pollution, chemical corrosion, and excessive vibration.

    Technical Parameters

    No. Item Unit Value
    1 Rated Voltage kV 40.5
    2 Rated Current A 1250 / 1600 / 2000
    3 Rated Short-Circuit Breaking Current kA 31.5
    4 Rated Peak Withstand Current kA 80
    5 Rated Short-Time Withstand Current kA 31.5
    6 Rated Short-Circuit Making Current kA 80
    7 Rated Single Capacitor Bank Breaking Current A 630
    8 Rated Back-to-Back Capacitor Bank Breaking Current A 400
    9 Rated Short-Circuit Current Breaking Operations time 20
    10 Rated Operating Sequence O-0.3s-CO-180s-CO
    11 Rated Lightning Impulse Withstand Voltage (Peak) kV 185
    12 Rated Short-Time Power-Frequency Withstand Voltage (1min) kV 95
    13 Closing Time ms 65±15
    14 Opening Time ms 40±15
    15 Mechanical Life time 10000
    16 Rated Voltage of Energy Storage Motor V AC220; DC220, 110
    17 Energy Storage Time s ≤15
    18 Rated Voltage of Closing Solenoid V AC220; DC220, 110
    19 Rated Voltage of Opening Solenoid V AC220; DC220, 110
    20 Rated Current of Auxiliary Switch A AC10, DC5

    Product Display

    VSY1-12GD Mounted Vacuum Circuit Current Breaker
    VSY1-12GD Mounted Vacuum Circuit Current Breaker-2

    Outline and Installation Dimension

    VSY1-12-3

    Frequently Asked Questions

    What is the rated voltage of the VSY1-12 Three-Position Vacuum Circuit Breaker?
    The VSY1-12 has a rated voltage of 12kV, making it suitable for medium-voltage distribution systems in industrial and utility applications.
    What are the ambient temperature and altitude requirements for the VSY1-12?
    The breaker is designed for ambient temperatures ranging from -15°C to +40°C and altitudes up to 1000m. For higher altitudes, insulation adjustments can be made to ensure safe operation.
    What is the mechanical life expectancy of the VSY1-12 vacuum circuit breaker?
    The VSY1-12 is rated for a mechanical life of 10,000 operating cycles, ensuring long-term reliability and reduced maintenance requirements.
    What control voltages are supported for the closing and opening solenoids?
    Both the closing and opening solenoids support AC220V and DC220V/110V, providing flexible integration with various control systems.
    Is the VSY1-12 suitable for use in chemically corrosive or explosive environments?
    No. The VSY1-12 is designed for environments free from explosion hazards, severe pollution, chemical corrosion, and excessive vibration. It should not be installed in such conditions without additional protective measures.
    What is the energy storage time for the VSY1-12 circuit breaker?
    The energy storage time is ≤15 seconds, ensuring rapid readiness for operation after each charge cycle. The energy storage motor supports AC220V and DC220V/110V supply voltages.