Our GCB-Retrofit plug-and-play solutions

Retrofit von Generatorschaltanlagen SF6-freie Generatorschaltanlage SF6-freie GCB SF6-freie GBS Vakuum Generatorschaltanlage Vakuum GCB Vakuum GBS wartungsfreie Generatorschaltanlage wartungsfreie GBS wartungsfreie GCB

Replace your aging GCB, go maintenance- and SF6- free with vacuum technology and decrease your OPEX up to

10 %
  • Our plug-and-play designs match legacy GCBs footprints, interfaces and performances

  • Unique horizontal and vertical installation capabilities for application up to 15,000 A and short circuit ratings up to 110 kA

Would you like to find out how our retrofit solutions may be integrated to your plant?

Get your tailor-made solution

Product information

Upgrade your power plant with state-of-the-art generator circuit-breaker solutions

The generator circuit-breaker synchronizes generator to the grid & protect both the generator & its step-up transformer is case of an electrical fault. Operation & maintenance teams rely on this paramount equipment to deliver power to the grid and protect your generator and power transformers. The highest level of GCB´s reliability and durability is essential to improve power plant protection and safe synchronization in all conditions, any time. When a generator circuit-breaker reaches the end of its service life, it must be replaced or retrofitted to avoid unscheduled downtimes, high maintenance costs, and any safety risks. Siemens offers state-of-the-art retrofit solutions which are maintenance-free, operated with proven spring-drive mechanism and are designed following the latest standards. Generator circuit-breakers with vacuum switching technology support our customers to achieve their sustainability targets as they are environmentally-friendly and contain no toxic decomposition gases. In addition, Siemens proven vacuum switching technology makes the difference due to the simplification of operational processes: no gas monitoring and no maintenance efforts.

Keep your reliability to its maximum - Discover the advantages

  • Reduction of operational costs due to maintenance-free vacuum switching technology
  • Easy to install, plug-and-play solutions
  • Compact footprint, reduced space requirements
  • Horizontal & vertical solutions
  • Environmentally-friendly, no toxic decomposition gases, optimization of the CO2 footprint
  • Worldwide network of Siemens engineering experts
  • Tailor-made solutions
  • High quality


Get in contact with our Customer Service:

You can contact us 24/7. We are looking forward for your call or online request. Phone +49 180 524 70 00