Infineon and Siemens leverage silicon carbide technology to advance electrical protection in data centers and factories

Business & Financial Press

Jun 08, 2026
  • Infineon and Siemens collaborate to drive semiconductor circuit breaker technology for data centers, production facilities and battery storage systems
  • Semiconductor circuit breakers are fast-acting, semiconductor-based electronic devices that protect electrical circuits and components from damage caused by short circuits or overloads
  • Infineon's silicon carbide power modules enhance the efficiency, power density and reliability of the Siemens circuit breaker

Munich, Germany – 8 June 2026 – Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) and Siemens AG are partnering to advance electrical protection and ensure reliable operations in data centers, production facilities and battery storage systems. As part of the collaboration, Infineon will supply silicon carbide (SiC) power modules to Siemens for use in its SENTRON 3QD2 semiconductor circuit breakers. This will enhance the efficiency, power density and reliability of Siemens' protection solution.

"AI data centers and factories are becoming increasingly electrified and complex. This increases vulnerability to electrical failures and drives the demand for more sustainable, efficient and reliable power distribution systems," said Andreas Weisl, Executive Vice President & Chief Sales Officer of Industrial and Infrastructure at Infineon. "By combining our advanced silicon carbide technology with Siemens' expertise in power distribution, we are addressing this demand to ensure fast, safe and reliable operations in power-critical environments."

A semiconductor circuit breaker, also known as a solid-state circuit breaker, is an electronic device that protects electrical circuits from damage caused by excessive current flow, such as short circuits or overloads. Unlike traditional electromechanical circuit breakers, which rely on mechanical parts to interrupt the flow of current and typically operate on the millisecond scale, the Siemens SENTRON 3QD2 uses semiconductor components and smart protection algorithms to perform this function. This enables ultra-fast interruption in the microsecond range, up to 1,000 times faster than conventional systems. This capability is essential for direct current (DC) grids and offers a significant increase in protection and system availability, which is crucial in applications like industrial manufacturing and AI data centers, where even a slight delay can cause costly downtime, data loss or expensive hardware damage in the event of electrical failures.

"Our new direct current portfolio offers innovative solutions that not only improve energy efficiency but also enable the development of resilient, future-proof infrastructure," said Markus Grabmeier, CEO Electrical Products at Siemens Smart Infrastructure. "Direct current applications can decrease energy consumption and substantially cut material usage. By integrating batteries, peak power can also be significantly reduced. With this approach, we are making a decisive contribution to the decarbonization of our industries, while reinforcing our commitment to developing technologies that deliver tangible value to our customers and society."

The collaboration addresses the increasing demands of power critical applications, where speed, precision and reliability are essential. By integrating Infineon's 62 mm CoolSiC™ MOSFET module 1200 V into Siemens' advanced protection concepts, the companies are contributing to more resilient, efficient and future-ready power infrastructure. This joint approach supports the growing adoption of DC grids and highly electrified environments, helping industrial and infrastructure operators meet rising performance and reliability requirements.

A demo showcase of the Siemens SENTRON 3QD2 semiconductor circuit breaker will be exhibited at the Infineon booth (hall 7, booth 470) at PCIM Europe 2026 in Nuremberg from 9 to 11 June.

Infineon at PCIM Europe 2026
PCIM Europe will take place in Nuremberg, Germany, from 9 to 11 June 2026. Infineon will present its products and solutions for decarbonization and digitalization in hall 7, booth 470. For press inquiries, please contact media.relations@infineon.com. Industry analysts interested in a briefing can email MarketResearch.Relations@infineon.com. Information about Infineon's PCIM 2026 show highlights is available at www.infineon.com/pcim.

About Infineon

Infineon Technologies AG is a global semiconductor leader in power systems and IoT. Infineon drives decarbonization and digitalization with its products and solutions. The Company had around 57,000 employees worldwide (end of September 2025) and generated revenue of about €14.7 billion in the 2025 fiscal year (ending 30 September). Infineon is listed on the Frankfurt Stock Exchange (ticker symbol: IFX) and in the USA on the OTCQX International over-the-counter market (ticker symbol: IFNNY).

Press Photos

The Siemens SENTRON 3QD2 uses semiconductor components and smart protection algorithms to protect electrical circuits from damage caused by excessive current flow. © Siemens AG

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Andreas Weisl, Vice President and Chief Sales Officer Industrial & Infrastructure at Infineon

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Markus Grabmeier, CEO Electrical Products at Siemens Smart Infrastructure

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Information Number : infgip202606-107

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Veronika Seifried

Spokesperson Industrial and Infrastructure, GIP Division

+49 89 234 61662

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