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Vacuum Circuit Breaker Manufacturer

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December 26, 2025
Category Connection: MV Circuit Breaker
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Tags:
#Medium Voltage Circuit Breaker #Vacuum Circuit Breaker #Compact Circuit Breaker
Brief: Let’s dive in — see this solution in action and notice the key moments. In this video, we showcase the VD4 Medium Voltage Vacuum Circuit Breaker in a real-world setting, demonstrating its protection and control capabilities for 12kV power systems. You'll learn how its sealed design and low-maintenance mechanism perform under frequent operations and short-circuit interruptions, providing clear insights for industrial and mining applications.
Related Product Features:
  • Designed for 12kV power systems as a protection and control unit for industrial and mining enterprises.
  • Suitable for switching various loads and frequent operations, including repeated short-circuit current interruption.
  • Features a new circuit breaker design with VSG components and internationally branded embedded poles.
  • Vacuum interrupter and main circuit are sealed as a single unit for protection against collision, dust, and contamination.
  • Enhances environmental adaptability while reducing operational and maintenance costs.
  • Achieves near maintenance-free operation with a low-maintenance operating mechanism.
  • Integrated mechanism and breaker body design passed type tests, meeting E2 and M2 levels for mechanical and electrical lifespan.
  • Available in multiple rated currents and breaking capacities to suit diverse application needs.
FAQs:
  • What is the rated voltage and breaking capacity of the VD4 Vacuum Circuit Breaker?
    The VD4 Vacuum Circuit Breaker is designed for 12kV power systems with breaking capacities of 25kA, 31.5kA, or 40kA, making it suitable for robust protection in industrial settings.
  • How does the VD4 Circuit Breaker handle frequent operations and maintenance?
    It is built for frequent operations, including repeated short-circuit interruptions, and features a low-maintenance operating mechanism that achieves near maintenance-free operation, reducing long-term costs.
  • What are the key design features that enhance the VD4's durability and performance?
    The VD4 includes a sealed unit combining the vacuum interrupter and main circuit for protection against dust and contamination, along with an integrated mechanism tested to E2 and M2 lifespan levels, ensuring reliability and environmental adaptability.
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