
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
POWERBOX Sweden
PRBX R&D is expanding and looking for talented Mechanical designer
Read more here: Senior Mechanical Designer
POWERBOX Germany
Eplax GmbH is looking for Office management to Bremen
Read more here: Innendienstleitung
POWERBOX Germany
PRBX R&D is expanding and looking for Power Designers
Read more here: Power supply designer (m/f/d)
News

COSEL’s new conduction cooled, fanless 3-phase high efficiency power supply delivers 3.5kW to highly demanding applications
COSEL Co, Ltd (6905: Tokyo) today announced the launch of the HCA3500TF, a fanless 3-phase / 3-wire 3500W AC/DC enclosed power supply, design optimized for industrial equipment such as high-frequency amplifiers, laser processing machines and robotics.

COSEL launches new compact 2”x3” power supply series for demanding medical applications
COSEL Co, Ltd (6905: Tokyo) today announced the expansion of its medical power offering with the addition of the new UMA series, the first two models being the 30W UMA30F and the 60W UMA60F.

COSEL adds high power density 700W unit to robust and reliable 3”x5” GHA series power supplies for demanding medical and industrial applications
COSEL Co, Ltd (6905: Tokyo) today announced the introduction of its new open-frame high power density, 700W, 3×5 inch power supply optimized for efficient cooling for use in demanding medical and industrial applications.

COSEL adds a 1500W to its robust and reliable PJMA series of power supplies for demanding medical applications
COSEL Co, Ltd (6905: Tokyo) today announced the expansion of its medical power offering with the addition of a 1500W version to its PJMA series.