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First F-gas-free NXPLUS C 24 circuit-breaker panel from Siemens goes into operation

In cooperation with Siemens Smart Infrastructure, E.ON subsidiary Westnetz, one of Germany's largest distribution grid operators, has expanded its Bekond substation in the German state of Rhineland-Palatinate with a fluorine gas-free NXPLUS C 24 circuit-breaker panel. It is the first panel of its type in the world to go into operation using Clean Air, the climate-neutral insulation gas. This installation demonstrates the functionality of fluorine gas-free solutions in grid operations and shows an easy way to extend existing technology with latest environmentally friendly technology. 

Trial phases by grid operators are crucial prior to large-scale deployments of fluorine gas-free medium-voltage switchgear. “Until now, sulfur hexafluoride, or SF 6 for short, has been used in many medium-voltage switchgear. This gas has excellent insulating and extinguishing properties, but it can be harmful to the environment if it leaks from the switchgear,” said Stefan Küppers, Chief Technology Officer of Westenergie AG and formerly Managing Director for Special Technology and Digitalization at the wholly owned subsidiary Westnetz GmbH. “For this reason, we’re intensively looking for new technical solutions that combine high level of security of energy supply with climate-neutral technology. Together with Siemens AG, we want to test the new Clean Air technology and gather operational experience. This is an important step towards a climate-neutral future.”
“What particularly excites us as a company about the new Siemens NXPLUS C 24 product is its compatibility with the existing SF 6 switchgear and its proven design and operating concept,” said Bastian Wölke, technical product manager for medium-voltage switchgear and systems at Westnetz GmbH. 
“Our fluorine-gas-free switchgear enables our customers to achieve sustainable, safe and cost-efficient operation,” said Stephan May, CEO of the Distribution Systems Business Unit at Siemens Smart Infrastructure. “Our installed base of more than 130,000 NXPLUS C units can be expanded with the latest climate-neutral technology. The dimensions and operability of the unit remain unchanged. This creates security of investment for our customers and facilitates the transition to sustainable fluorine gas-free technologies.”
Westnetz GmbH supports the energy transition in Germany with numerous innovation projects and is a committed partner in the development and testing of new climate-neutral technologies for switchgear. With the environmentally friendly extension of its substation in Bekond, Westnetz now aims to combine high security of supply with climate-neutral technology. The Bekond substation supplies approximately 25,000 residents in the Trier-Saarburg district and the Trier Region Industrial Park (IRT) with electricity and is the feed-in point for renewable energy from photovoltaics and wind power into the distribution grid. Increased demand for connections from industrial customers and producers of renewable energy necessitated the extension of the existing gas-insulated 24-kV switchgear. 
For more information about Siemens Smart Infrastructure, see
For more information about our blue GIS medium-voltage switchgear, see

First fluorine gas-free NXPLUS C 24 circuit-breaker panel from Siemens goes into operation at E.ON subsidiary Westnetz. Stefan Küppers (left), Chief Technology Officer of Westenergie AG and formerly Managing Director for Special Technology and Digitalization at the wholly owned subsidiary Westnetz GmbH and Stephan May (right), CEO of the Distribution Systems Business Unit at Siemens Smart Infrastructure at the Bekond substation in the German state of Rhineland-Palatinate.

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. Siemens Smart Infrastructure has its global headquarters in Zug, Switzerland. As of September 30, 2020, the business had around 69,600 employees worldwide.
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Siemens AG (Berlin and Munich) is a technology company focused on industry, infrastructure, transport, and healthcare. From more resource-efficient factories, resilient supply chains, and smarter buildings and grids, to cleaner and more comfortable transportation as well as advanced healthcare, the company creates technology with purpose adding real value for customers. By combining the real and the digital worlds, Siemens empowers its customers to transform their industries and markets, to transform the everyday for billions of people. Siemens also owns a majority stake in the publicly listed company Siemens Healthineers, a globally leading medical technology provider shaping the future of healthcare. In addition, Siemens holds a minority stake in Siemens Energy, a global leader in the transmission and generation of electrical power.
In fiscal 2020, which ended on September 30, 2020, the Siemens Group generated revenue of €55.3 billion and net income of €4.2 billion. As of September 30, 2020, the company had around 293,000 employees worldwide. Further information is available on the Internet at
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Silke Federspieler

Siemens AG

+49 174 1551579