AlpSemi raises €17M to advance solid-state circuit breaker technology

French semiconductor company AlpSemi has raised €17 million in a funding round led by Yotta Capital, with participation from SE Ventures, Navitas Semiconductor and Cycle Group. The financing will support the industrialisation and commercial scale-up of the company's semiconductor power switches, which are designed for solid-state circuit breakers (SSCBs) in residential and commercial buildings, as well as 800V direct current (DC) AI data centres.

As global electricity demand continues to grow, driven by AI workloads, electrification and the adoption of direct current power architectures, the need for more efficient and intelligent power protection systems is increasing. AlpSemi is developing semiconductor technologies to support the transition from traditional electromechanical circuit breakers to digitally controlled, semiconductor-based alternatives.

Solid-state circuit breakers are designed to provide real-time control and protection of electrical systems while improving efficiency, reliability and scalability across both AC and DC power networks. The technology is expected to play an increasingly important role in modern buildings, industrial facilities and data centres as energy systems become more complex and power-intensive.

AlpSemi's approach spans materials, devices and systems, creating a vertically integrated platform for power protection and conversion. The company's semiconductor switches are designed to integrate with existing power semiconductor ecosystems while supporting the performance requirements of next-generation electrical infrastructure.

As part of this strategy, the company has already launched its first product, AS800, a semiconductor power switch designed for solid-state miniature circuit breakers operating in 110V and 230V environments. According to AlpSemi, the product combines high power density with a compact form factor while supporting distributed energy resources and greater flexibility in modern electrical systems.

Developed through a global supply chain and in collaboration with international partners, the AS800 is positioned for industrial-scale deployment. The product represents the first step in AlpSemi's broader roadmap targeting high-voltage power protection systems, including 800V DC architectures designed for AI data centres.

Frédéric Dupont, CEO of AlpSemi, said the funding will help accelerate the development of solid-state circuit breaker technology and support next-generation power protection and conversion systems.

With the new funding, AlpSemi aims to accelerate the deployment of next-generation power protection technologies across buildings, industrial applications and AI data centres.