Siemens Introduces a Circuit Breaker for the Renewable Energy Market

Wendell, N.C. | Sept. 30, 2020

  • Optimal for wind and solar power generation applications
  • Eliminates the need for grounding transformers
  • Reduces project costs, physical footprint, and environmental impact
  • Reinforces Siemens’ commitment to personnel safety

Siemens is introducing the type SDV-R™ non-arc-resistant and type SDV-R-AR™ arc-resistant medium-voltage outdoor distribution circuit breakers designed specifically for renewable energy applications, such as wind power generation. These newest members of the long-standing and highly reliable Siemens SDV distribution circuit breaker family now provide fast switching to ground – ultimately saving money and space through an environmentally friendly solution.


The integral fast-acting grounding switch, which is mechanically interlocked with the SDV-R circuit breakers, helps limit transient voltage excursions (inherent to collection systems) to very low levels during switching operations. This feature offers wind power producers an alternative to large, expensive grounding transformers with cable connections that take up significant space and pose environmental risks associated with oil leaks.


To provide additional personal protection in the event of an internal arcing fault, the SDV-R-AR circuit breakers have been qualified to carry a type 2B accessibility rating in accordance with the latest ANSI/IEEE C37.20.7 standard. This is the same qualification approach implemented in the innovative type SDV7-AR circuit breakers for the purpose of providing enhanced personal protection.



To learn more about Siemens’ SDV-R circuit breakers, please contact your local Siemens representative or visit



SDV-R and SDV-R-AR are trademarks of Siemens and/or its affiliates in some countries. 



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About Siemens

Siemens Smart Infrastructure (SI) is shaping the market for intelligent, adaptive infrastructure for today and the future. It addresses the pressing challenges of urbanization and climate change by connecting energy systems, buildings and industries. SI provides customers with a comprehensive end-to-end portfolio from a single source – with products, systems, solutions and services from the point of power generation all the way to consumption. With an increasingly digitalized ecosystem, it helps customers thrive and communities progress while contributing toward protecting the planet. SI creates environments that care. With around 72,000 employees worldwide, Siemens Smart Infrastructure has its global headquarters in Zug, Switzerland, and its U.S. corporate headquarters in Buffalo Grove, Illinois, USA.


Siemens Corporation is a U.S. subsidiary of Siemens AG, a global powerhouse focusing on the areas of power generation and distribution, intelligent infrastructure for buildings and distributed energy systems, and automation and digitalization in the process and manufacturing industries. Through the separately managed company Siemens Mobility, a leading supplier of smart mobility solutions for rail and road transport, Siemens is shaping the world market for passenger and freight services. Due to its majority stakes in the publicly listed companies Siemens Healthineers AG and Siemens Gamesa Renewable Energy, Siemens is also a world-leading supplier of medical technology and digital healthcare services as well as environmentally friendly solutions for onshore and offshore wind power generation. For more than 160 years, the company has innovated and invented technologies to support American industry spanning manufacturing, energy, healthcare and infrastructure. In fiscal 2019, Siemens USA reported revenue of $26.5 billion, including $1.23 billion in exports, and employs approximately 50,000 people throughout all 50 states and Puerto Rico.