Rugged Conduction-Cooled AC/DC Power Supplies for Harsh Environments

Modern defense, industrial automation and transportation systems increasingly operate in environments where traditional power supplies fall short. Dust-filled factories, sealed electronics enclosures, ground vehicles, outdoor equipment and high vibration platforms all demand silent, reliable, fan-free power that can withstand shock, temperature swings and 24/7 operation.

To meet these challenges, Powerbox (PRBX) has engineered a full range of conduction-cooled AC/DC power supplies. Designed from the ground up for harsh environments, these products deliver high reliability, long lifetime and stable thermal performance from 500W to 1.2kW – and scale to multi-kW systems in parallel.

This family has rapidly become one of the most in-demand units in our portfolio.

Why rugged conduction-cooled power is the industry choice

Conduction cooling eliminates fans, reduces maintenance and increases system reliability. By transferring heat through a solid baseplate to a cold plate or chassis, these AC/DC power supplies deliver:

• Silent operation with no moving parts
• High MTBF and long product lifetime
• Reliable performance in vibration, dust and extreme temperatures
• Compatibility with sealed or outdoor systems
• Stable power for mission-critical electronics.

Engineers in defence, transportation, industrial automation, robotics, radar, communications and surveillance increasingly standardise on this architecture.

Powerbox’s rugged conduction-cooled portfolio

OFI Series (700W /1200W) Open-frame, fanless AC/DC power supplies

A flexible platform for industrial and transportation applications. It is also increasingly selected for industrial and civilian radar systems where full military ruggedization is not required, offering a reliable and cost-effective alternative to fully rugged power platforms.

• 12,28 or 48V outputs
• Global mains input
• High efficiency, natural convection cooling

Ideal for embedded systems, automation, industrial lasers, industrial radar surveillance and control electronics.

OFD1200A – Rugged 1200W Baseplate-cooled power supplies for harsh platforms

Engineered for defence and harsh industrial platforms.

• 12/28/48/65V outputs
• Baseplate conduction cooling
• Parallel operation up to 9.72kW

Perfect for radar communications, ground vehicles and demanding applications.

ECDA Series (ECD500/700/1000A) – Fully sealed IP65 power supplies 

Designed for outdoor environments and exposed environments.

• Dust-tight and water-protected
• 12/28V output options
• Silent, fan-free operation

Ideal for mobile and field-deployed electronics.

Proven reliability – trusted worldwide

Customers choose these products because they combine:

• Defence-grade ruggedization
• COTS/MOTS-based architectures
• Wide temperature operation
• No-fan, low-maintenance lifetime
• Scalability from 500W to multi-kW

With over 50 years of custom-power expertise, Powerbox helps engineers Master Power and make the complex simple.

Ready to power your next mission?

Explore the OFI700A, OFI1200A, OFD1200A and ECDA product families or speak with our Power Conversion Experts to identify the most suitable solution for your platform.

Contacts us