en.Wedoany.com Reported - Siemens is developing a new generation of electrical protection systems based on silicon carbide technology, with Infineon Technologies AG as its core power module supplier. The semiconductor circuit breaker (solid-state circuit breaker), named SENTRON 3QD2, is designed for applications such as DC grids, industrial manufacturing, and AI data centers. It can interrupt overcurrents within microseconds, improving response speed by several orders of magnitude compared to the millisecond-level operation of traditional electromechanical circuit breakers, effectively preventing downtime, data loss, or equipment damage caused by electrical faults.

Unlike electromechanical circuit breakers that rely on mechanical components for switching, the SENTRON 3QD2 uses semiconductor components and protection algorithms to achieve current interruption with faster response times. Infineon provides the 62 mm CoolSiC MOSFET module (1200 V) for this circuit breaker, aiming to enhance system efficiency, power density, and operational reliability. This collaboration primarily targets high-power critical applications requiring fast and precise circuit protection, including data centers, production facilities, and battery storage systems, in electrified environments with high demands on performance and system availability.

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