Generator Circuit Breakers (GCB)

With world-leading SF6­ technology, ABB’s Generator Circuit Breakers assist all type of power stations all around the globe to increase both safety and efficiency. These improvements are possible since a GCB provides
  • simplified operational procedures
  • improved protection
  • higher power plant availability
Our focus on excellence makes ABB a premier supplier of Generator Circuit-Breakers. We continuously invest in new technology and never compromise in quality. With a short delivery and commissioning time, more than 5000 GCBs with the SF6 technology have been installed worldwide since 1985.

Our offering

  • HECS

    80 – 700 MW
    A compact, integrated system solution

  • HEC 9

    Up to 1800 MW
    World’s highest short circuit current capability in SF6 technology

  • HVR-63

    60 – 180 MW
    Solutions for small power plants

  • Flexible Connection Kit

    Connecting GCB to IPB

  • HEC 7/8

    450 – 1500 MW
    World’s highest short circuit current capability in SF6 technology


    150 – 600 MW
    For pump storage power plants

  • HECS-R

    80 – 300 MW
    Compact, highly suitable for replacements and retrofits

  • Service

    ABB service partner assists you throughout the entire product lifetime from installation and commissioning to replacement and upgrades.

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    ABB contact for United States of America

    Sales: Jae Lee
    Service: Ernst Steffen


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