About us
50+ years of engineering high-reliability power conversion systems for mission-critical applications worldwide.
Powerbox (PRBX) designs and manufactures advanced power conversion systems for demanding, mission-critical applications where reliability cannot be compromised.
Founded in Sweden in 1974 and operating across 12 countries on four continents, we combine over 50 years of engineering expertise with a portfolio of more than 3,500 proven AC/DC and DC/DC power conversion designs, many featuring decades of field heritage.
Serving the defense, industrial, medical, and transportation markets, Powerbox delivers power solutions ranging from proven off-the-shelf products to value-added, semi-custom, and fully custom designs. By combining deep application knowledge with proven power conversion technologies, we help OEMs and system integrators solve complex power challenges and ensure reliable operation in demanding environments.
At the heart of Powerbox is a commitment to engineering reliable power. Working closely with customers throughout the product lifecycle, Powerbox develops solutions that meet stringent performance, safety, and reliability requirements while supporting long-term system availability. From industrial automation and medical devices to transportation infrastructure and defense systems, Powerbox power conversion solutions are designed to perform when reliability matters most.
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At Powerbox, we design power solutions where failure is not an option. From defense systems to medical technology, our work supports environments where reliability is critical.
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Head office
Powerbox
Västberga Allé 36A, 5tr
Hägersten, Sweden
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News
Powerbox to Showcase Engineering Reliable Power at electronica 2026
Powerbox is heading to electronica 2026.
Explore Powerbox’s custom engineering capabilities, standard and adapted power solutions, and developments in connected power management. Meet our team in Hall A5, Stand 312, November 10–13.
Powerbox Joins HYPAX Following Completion of Transaction with COSEL
Powerbox announces the successful completion of its transfer from COSEL to the HYPAX group, marking the beginning of an exciting new chapter for growth and innovation.
Powerbox to exhibit at FSI-messa 2026
Powerbox will exhibit at FSi-messa 2026 in Lillestrøm, Norway, showcasing reliable power solutions for mission-critical defense applications.
Laboratory Testing Regimens for Advanced Power Design
Displacing reliable silicon technology requires more than smart schematics; it demands rigorous, transparent laboratory testing. Learn how Powerbox utilizes multi-layered testing pipelines, 1,000-hour HTRB stress testing, and system-level aging to minimize the risks of early technology adoption in medical and industrial environments.
Event calendar
Electronica 2026
Power engineered around your application Meet Powerbox at electronica 2026 to explore reliable AC/DC and DC/DC power solutions for demanding applications. Discover our custom engineering capabilities, alongside proven standard and adapted platforms for defense, medical, industrial and transportation systems. Bring your specifications or an early concept and speak with our specialists about a solution built […]
