
About us
Founded in 1974, with headquarters in Sweden and operations in 15 countries across four continents, Powerbox serves customers all around the globe. The company focuses on four major markets – industrial, medical, transportation/railway and defense – for which it designs and markets premium quality power conversion systems for demanding applications. Powerbox’s mission is to use its expertise to increase customers’ competitiveness by meeting all of their power needs. Every aspect of the company’s business is focused on that goal, from the design of advanced components that go into products, through to high levels of customer service. Powerbox is recognized for technical innovations that reduce energy consumption and its ability to manage full product lifecycles while minimizing environmental impact. Powerbox is a Cosel Group Company.
About COSEL
Established in Japan 1969, COSEL is one of the world’s leading designers and manufacturers of high performance AC-DC Power Supplies, DC-DC Converters and EMI Filters. With quality, reliability & flexibility as our main focus, we pride ourselves on developing some of the highest quality and most reliable products seen anywhere in the world today. COSEL is a $284m global company employing some 790 staff with sales offices throughout Japan, Asia, Europe and North America.
Our products are at the heart of what makes delicate and complex systems tick. We take from volts to kilovolts, and from watts to kilowatts. We’re the people you turn to when you need to keep a high-speed train in motion, when power must be maintained safely underwater or at 36,000 feet, or when someone’s life depends on a steady power supply to a critical medical device.
We are masters of power.
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Job openings
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News

COSEL shortlisted in prestigious Elektra awards
COSEL Co, Ltd (6905: Tokyo) today announced two products shortlisted at the prestigious Elektra Awards.

Powerbox (PRBX) has two opportunities to win in prestigious Elektra Awards
With its Elektra Awards, Electronics Weekly seeks to recognize the best of what the electronics industry has to offer, worldwide. The Awards recognize excellence within the global electronics industry, and has welcomed entries from manufacturers, distributors, designers, individuals, research groups and start-ups in order to accurately reflect the nature of today’s dynamic electronics industry.

Ruggedized and ready to use – Powerbox’s COTS/MOTS ratified 50W to 1200W power solutions
Powerbox now offers a comprehensive ruggedized product line for defense applications and demanding industrial.

The Power of knowledge sharing!
Curiosity and the sharing of knowledge regarding new technologies is part of Powerbox’s DNA, with the ultimate goal of providing you with the most efficient power solutions for your demanding applications.