GE-ALSTOM TRANSACTION Effective 2nd November 2015, GE acquired Alstom’s energy businesses. The Alstom content available on this site is for information purposes only.
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Dead Tank Circuit Breakers up to 550 kV


The circuit breaker is key to substation safety and security. The high performance Alstom Grid Dead Tank circuit breaker, based on state of-the-art technology, has proven reliability. It requires almost no maintenance and is easy to install.

The SF6 Dead tank circuit breakers accommodate customer needs with high level of reliability on a daily basis, even under extreme conditions such as those in areas with high seismic activity, tropical climates, low temperatures and polluted areas.

Main Characteristics 

  • Use of standardized breaking chamber based on years of experience
  • Meets or exceeds ANSI and IEC standards
  • Several options available: composite bushings, low temperature, controlled switching or monitoring device
  • Meets the latest ANSI and IEC standards (according to C2 and M2)
  • One or three poles operation
  • Specifically designed and tested for general or definite purpose applications and for severe environmental conditions
  • Thermal assisted interrupters
  • Durable low energy mechanisms

Key Benefits 

  • Proven reliability
  • Robust, leak-resistant design
  • Flexibility
  • High performance
  • Easy onsite installation
  • Essentially maintenance free