Infineon and Siemens have joined forces to strengthen electrical protection and improve reliability across data centers, industrial facilities, and battery storage systems.
Under the partnership, Infineon will supply silicon carbide (SiC) power modules for Siemens’ SENTRON 3QD2 semiconductor circuit breakers enhancing efficiency, power density, and overall system resilience.
Unlike conventional electromechanical circuit breakers that rely on moving parts and operate in milliseconds, semiconductor or solid-state circuit breakers use advanced electronics to interrupt current almost instantly.
Siemens’ SENTRON 3QD2 leverages semiconductor technology and intelligent protection algorithms to achieve switching speeds in the microsecond range up to 1,000 times faster than traditional systems. This ultra-fast response is particularly critical for DC grids and high-load environments such as AI data centers and industrial operations, where even brief disruptions can lead to significant downtime, data loss, or equipment damage.
Infineon and Siemens directly addresses the growing demands of power-critical applications, where speed, precision, and reliability are non-negotiable.
By integrating Infineon’s 1200 V CoolSiC™ MOSFET module in a 62 mm package into Siemens’ protection architecture, the companies are enabling more robust and future-ready power infrastructure. The solution also supports the broader shift toward DC grids and increasingly electrified systems, helping operators meet rising performance expectations.
Leadership Comments
“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.”
“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.”
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.
