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Circuit breakers

We offer live tank and dead tank circuit breakers as well as hybrid solutions combining different functions in a compact design, such as our dead tank compact (DTC) and our disconnecting circuit breakers (DCB). All of our products are manufactured based on our proven modular design and are available with porcelain or composite insulators. Choose the right product for your specific requirement from our portfolio.

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Product overview

Our circuit breaker technology

The technology of our products sets international trends. We continuously ensure our high quality through optimized production processes, constant product development and a certified quality management system.


  • Over 100 years of operating experience
  • Many years of experience with special applications, e.g. in extremely hot and cold temperatures, or in the event of earthquakes
  • Close customer contact and quick accessibility thanks to our global production network and 24-hour service
  • A strong platform concept for interrupter units and operating mechanisms ensures competitive prices as well as low maintenance and training costs
  • Everything from a single source: installation, maintenance, training, technical advice
  • Replacement parts and maintenance accessories for all Siemens circuit breakers available for at least 25 years after delivery
  • Extremely low gas leakage rate of less than 0.1% per year (IEC requires a maximum of 0.5% per year)
  • All Siemens breakers have a 12 year inspection / 25 year maintenance cycle, minimizing your total cost of ownership!  No adjustments or maintenance to the operating mechanism are required for life of the unit

Modular Design

Siemens high-voltage circuit breakers, regardless of type or voltage range, are designed in a well proven modular platform concept. This leads to a wide variety of circuit breaker types and strong flexibility with regard to various