Siemens Taps Infineon Silicon Carbide for Faster Data Centre Circuit Protection

What happened: Infineon and Siemens are partnering to advance electrical protection for data centres, production facilities, and battery storage systems. Infineon will supply silicon carbide power modules for use in Siemens’ SENTRON 3QD2 semiconductor circuit breakers. 

Why it matters: A semiconductor, or solid-state, circuit breaker protects circuits from short circuits and overloads using electronic components. The SENTRON 3QD2 uses semiconductor components and smart protection algorithms to interrupt current in the microsecond range, far faster than conventional electromechanical breakers. Infineon’s modules improve the breaker’s efficiency, power density, and reliability.

Industry context: Increasingly electrified AI data centres and factories raise the risk of electrical failures, where brief delays can cause downtime, data loss and hardware damage.