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Medium Voltage Vacuum Circuit Breakers

Engineered for reliable switching, protection, and isolation in industrial and utility medium voltage networks.

Product Overview

Reliable Performance in Every Switching Operation

KNT Energy's Vacuum Circuit Breakers (VCBs) are designed for medium voltage applications ranging from 12kV to 36kV. They provide reliable interruption of fault currents, routine switching operations, and isolation for maintenance — all critical functions in industrial plants, utility substations, and commercial distribution systems.

Vacuum interrupter technology ensures clean, arc-free switching with minimal maintenance requirements, extended operational life, and environmentally friendly operation with no harmful gas emissions.

KNT Vacuum Circuit Breaker

Role in MV Systems

The Heart of Medium Voltage Protection

Fault Interruption

Rapid and reliable interruption of short-circuit currents, protecting downstream equipment and personnel safety.

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Routine Switching

High mechanical endurance for frequent switching operations — energizing transformers, capacitor banks, and motor feeders.

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Maintenance Isolation

Safe isolation for maintenance activities with visible disconnect position and interlocking capability.

Manufacturing Quality

Built for Industrial Confidence

Every KNT Vacuum Circuit Breaker is assembled and tested under strict quality protocols. Key manufacturing differentiators include:

  • High-quality vacuum interrupters with verified vacuum integrity
  • Spring-operated mechanism for consistent operating characteristics
  • Full routine testing: power frequency withstand, timing, resistance measurement
  • Material traceability and complete test documentation
VCB manufacturing and testing

Interested in VCB Solutions?

Request a quote or discuss your medium voltage protection requirements with our engineering team.