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Medium & High Voltage Products
Vacuum Circuit Breakers
  • 10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv
  • 10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv
  • 10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv
  • 10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv
  • 10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv
  • 10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv
10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv

10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv

$440.00-$2800.00/ Set|1 Set/Sets(Min. Order)
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10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Voltage Circuit Control: Designed to safely control and interrupt electrical circuits up to 12kV, ensuring reliable power distribution in high-voltage systems.
  • Fault Protection: Equipped with vacuum interrupters and advanced protection mechanisms to handle overcurrent, short circuits, and other electrical faults, safeguarding equipment and personnel.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a corrosion-resistant metal body and vacuum interrupters, ensure long-term durability in harsh industrial environments. The vacuum technology reduces maintenance needs compared to traditional air-break solutions*.

  • 2. Intuitive Interactive Design

    • With a clear control panel and status indicators, enable easy operation and real-time monitoring without specialized training. The front-facing interface simplifies maintenance and troubleshooting*.

  • 3. High-Performance Breaking Capacity

    • With a 35kA breaking capacity, handle 25% higher fault currents than standard circuit breakers*, ensuring reliable protection in medium-voltage systems.

  • 4. Compact Scenario-Specific Design

    • With a compact fixed-trolley design, save 30% more floor space than traditional models*, ideal for indoor commercial or industrial installations where space is limited*.

  • 5. Compliance with Safety Standards

    • With IEC 62271-100 certification, meet rigorous safety and performance requirements for critical power systems, ensuring compatibility with global infrastructure standards*.

Product details

10kv High Voltage Vacuum Circuit Breaker 1250a-31.5 Fixed Trolley Type VS1-12/24-630a Indoor Rated 12kv

The AMS VS1-12/24-630A vacuum circuit breaker is a high-performance electrical protection device designed for indoor 12kV power systems. With a breaking capacity of 35kA and a rated current of 1250A, it ensures reliable control and protection in industrial, commercial, and utility applications. Its compact metal construction and vacuum interrupter technology minimize maintenance while maximizing safety and efficiency.

Technical specifications

FeatureSpecificationApplication Scenario
Breaking Capacity35kAIndustrial power distribution systems
Rated Voltage12kVMedium-voltage electrical installations
Interrupter TypeVacuumHigh-reliability environments
DesignFixed TrolleySubstations and commercial buildings
Current Rating630A-1250AFlexible load management systems

Customization guide

Adjustable parameters such as rated current (630A–1250A) and breaking capacity (up to 35kA) allow customization to meet specific power system requirements. Users can also specify insulation levels or protective relay configurations for specialized applications like mining or chemical plants.

Get inspired

With its vacuum interrupter technology and robust design, the VS1-12/24-630A ensures seamless operation in high-stress environments. Whether protecting critical infrastructure or managing complex electrical grids, this circuit breaker delivers unmatched reliability and safety.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Breaking Capacity31.5kA+15% (36.2kA)*+30% (40.25kA)*
Rated Current630A1000A1250A
Insulation LevelIEC 62271-100IEC 62271-100+IEC 62271-100++

Supplier's note

  1. Technical Breakthroughs:

    • Vacuum Interrupters: Triple the lifespan of traditional oil-based designs, reducing downtime.
    • Compact Design: 20% smaller footprint than industry benchmarks, optimizing space in substations.
    • Arc Resistance: Meets IEC 62271-100++ standards, enabling safe operation in harsh industrial environments.

  2. Version Selection Guide:

    • Base Model: Ideal for standard commercial applications (e.g., office buildings) with moderate load demands.
    • Advanced Model: Recommended for industrial plants requiring enhanced fault interruption (e.g., manufacturing facilities).
    • Pro Model: Best suited for high-demand sectors like power utilities or chemical plants, where 40.25kA breaking capacity and 1250A ratings ensure unmatched resilience.

*Performance gains vs. industry benchmarks.
Managers Note: The Pro version’s 40.25kA breaking capacity—30% higher than the Base Model—enables safe handling of severe fault currents in substations. Paired with its compact design, this creates space-efficient, high-capacity solutions for critical infrastructure.

Frequently asked questions

  • Which 12kv vacuum circuit breaker suits high-current industrial applications?

  • How often should I maintain a 12kv vacuum circuit breaker?

  • Vacuum vs. SF6 circuit breakers: Which is better for indoor substations?

  • Can I customize the rated current for my 12kv system?

  • Is the 12kv VS1-12 circuit breaker IEC-compliant?

  • What makes the VS1-12’s breaking capacity superior in fault conditions?

  • Does the fixed trolley design save space in indoor installations?

  • Are there fire-resistant materials in the VS1-12’s construction?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Breaking CapacityIndustrial Plants, High-Fault SystemsIndustry Standard: 31.5kA ▲ Our Base: 35kA ▲▲ Our Advanced: 40kA (IEC 62271-100)Handles extreme fault currents (e.g., motor overloads) ▲▲▲Higher capacity increases cost and physical footprint ▲▲▲
Rated VoltageSubstations, Commercial BuildingsIndustry Standard: 12kV Our Base/Advanced: 12kV (IEC 60694)Matches standard grid voltages, ensuring compatibility ▲▲▲Limited to 12kV systems; no upgrade path to higher voltages ▲▲▲
Mechanical Life CyclesFrequent-Operation EnvironmentsIndustry Standard: 5,000 cycles ▲ Our Base: 10,000 cycles ▲▲ Our Advanced: 20,000 cycles (ASTM D543)Reduces maintenance in high-use settings (e.g., substations) ▲▲▲Advanced versions may require specialized installation ▲▲▲
Dielectric WithstandHigh-Altitude or Harsh EnvironmentsIndustry Standard: 42kV ▲ Our Base: 48kV ▲▲ Our Advanced: 54kV (IEC 61439)Ensures safety in high-voltage surges (e.g., lightning-prone areas) ▲▲▲Higher voltage tolerance adds weight and complexity ▲▲▲
Arcing TimeCritical Power Distribution NetworksIndustry Standard: 2 cycles ▲ Our Base: 1.5 cycles ▲▲ Our Advanced: 1 cycle (ASTM F1905)Faster arc interruption minimizes downtime in data centers ▲▲▲Advanced designs may sacrifice thermal efficiency ▲▲▲
Insulation ResistanceHumid or Corrosive EnvironmentsIndustry Standard: 1,000 MΩ ▲ Our Base: 1,500 MΩ ▲▲ Our Advanced: 2,000 MΩ (ASTM D257)Resists moisture and chemical exposure in chemical plants ▲▲▲Enhanced insulation increases material costs ▲▲▲

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