Choose your region and language



Hitachi ABB Power Grids' generator circuit-breaker works behind the scene to protect power plants

For over 60 years, ABB’s generator circuit-breakers (GCBs) have been protecting all types of power plants around the globe. As the global leader in GCB technology, ABB is continuously driving innovation to provide solutions to increase power plant availability and reliability.

Increase operational availability, safety and flexibility in all types of power plants around the globe

Hitachi ABB Power Grids is the leader in design and manufacturing of GCBs since 1954 with more than 8,000 deliveries in over 100 countries. We offer the widest and most modern portfolio of GCBs in SF6 technology across a range of short circuit ratings from 63 kA to 300 kA and nominal currents from 6,300 A to over 50,000 A to meet the demand of all types of power plants around the globe as well as synchronous compensator applications.

GCBs increase protection of key equipment like generators and power transformers, ensure power plant availability, simplify operational procedures and reduce costs. Our GCBs are manufactured in Switzerland. We offers unique features like lean manufacturing for the shortest delivery time and the ability to participate in Factory Acceptance Test (FAT) personally or remotely using Remote Factory Acceptance Test (RFAT) from any place with access to internet connection.

Why Hitachi ABB Power Grids?

  • World leader in GCB state-of-the-art technology
  • Widest and most modern portfolio
  • Short delivery time
  • Global sales and service network

GCB News

  • Web Story
    Web Story
    ABB’s latest generator circuit-breaker to increase protection and safety in large power plants
    Read more
  • Web Story
    Web Story
    ABB’s next generation monitoring systems for generator circuit-breakers to enhance power plant reliability
    Graphic interface of webserver
    Read more