Naval Power Systems for Maritime Defence

Ruggedised shipboard power conversion for surface combatants, submarines and maritime patrol — built to MIL-STD-810 and RTCA DO-160

Customised Power Conversion for Naval Programmes

Customised Power Conversion for Naval Programmes

Resilient power for dynamic naval operations. TT Electronics designs and manufactures ruggedised naval power conversion systems for surface ships, submarines and maritime support infrastructure. Whether powering radar arrays, propulsion subsystems or advanced communications, our shipboard power converters are engineered for the strict electrical, thermal and environmental demands of naval defence — salt fog, shock, vibration and EMC.

With over 30 years of experience supporting global defence contractors and shipbuilders, we provide AC-DC, DC-DC, DC-AC, AC-AC, high-voltage, bidirectional and tridirectional systems for platform voltages from legacy 28Vdc through 270Vdc high-power systems to emerging 540Vdc naval DC distribution. From ultra-compact power supplies to ruggedised transformer rectifier units (TRUs) and active power factor correction (APFC), our naval power supply systems are qualified to MIL-STD-810, RTCA DO-160, MIL-STD-461 and MIL-STD-1399 Section 300.

We don't just deliver power. We engineer naval defence reliability.

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Naval Environments We Support

Surface Combatants

Compact, high-efficiency power modules for combat management systems, radar and communications on destroyers, frigates, corvettes and offshore patrol vessels.

Submarines

Power conversion engineered for confined, high-humidity hulls, with strict EMC isolation to MIL-STD-461 and DEF STAN 59-411.

Maritime Patrol & Mine Countermeasures

Mission-critical power for sonar, navigation and surveillance systems on lighter hull types.

Shore-Based Naval Infrastructure

Containerised and rack-mounted power systems for naval training facilities, shore power and forward support.

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AX-Force®: Award-Winning Power Conversion for Naval Platforms

AX-Force®: Award-Winning Power Conversion for Naval Platforms

AX-Force won Best in Show in the Power Electronics category at DSEI 2025. Built on silicon carbide (SiC) power modules, this software-configurable bidirectional and tridirectional converter delivers >96% efficiency and scales to 150kW through parallel units. It is designed to RTCA DO-160, MIL-STD-704 and MIL-STD-461.

For naval platforms, that means one hardware platform for high-demand combat system loads, electric and hybrid-electric propulsion subsystems and energy recovery. Compared with traditional ATRUs, AX-Force delivers improved power quality and faster dynamic response in a smaller, lighter footprint.

Naval Power Conversion Systems — Custom and Marinised

We offer both fully custom and marinised standard naval power systems, built to your programme's EMC, thermal and shock qualification requirements. We work with prime contractors and shipbuilders across the UK, Europe and North America. Need something fleet-specific? We'll build to your naval specification or help you define it for maritime qualification.