AC/DC Converter

    For Airborne Applications

    Power conversion products, such as AC to DC converters, frequency converters, and DC to AC inverters are major components in almost every aircraft today. All the power supplies currently in production have passed flight certification and through the years have achieved a solid reputation for high quality. The airborne product line includes a series of transformer rectifier units – TRUs – ranging from 20 to 300 A for the MRCA “Tornado”, the Swedish fighter JAS 39 “Gripen”, the “Tiger” helicopter, Indian AEW&C and others.

    The purpose is the conversion of the aircraft prime power source of 115 V/200 V, 3 phases, 400 Hz to 28 VDC power. The TRUs have been developed for extreme environmental conditions, minimum space and weight requirements and maximum reliability. We can offer a wide range of solutions for military and commercial aircraft.

    Transformer Rectifier Unit, 20kW for military aircraft, Model: 2062

    Key features

    • Input: 3x 200/115V /400Hz
    • Output: 270VDC / 75A (-40° to +71°C)
    • Overload 110A for 2min., 160A for 10sec
    • Galvanic Isolation
    • High efficiency >94%
    • High reliability, MTBF >100.000h
    • High power density
    • Monitoring
    • Standards: RTCA DO160, MIL-STD 704E, MIL-STD 461F

    Auto Transformer Rectifier Unit, 45kW for military aircraft, Model: 2052

    Key features

    • Input: 3x 200/115V /400Hz
    • Output: 270VDC / 165A (-40° to +50°C)
    • High efficiency >95%
    • Overload 160% for 1min.
    • Low weight
    • High reliability, MTBF >75.000h
    • High power density
    • Short-circuit protection
    • Conduction cooling / forced air / water cooling
    • Standards: RTCA DO160, MIL-STD 704E
    For Naval Applications

    Static naval power conversion equipment transforms, converts and conditions different electrical power sources to meet the power requirements of the vessel for many sophisticated and demanding loads, such as command and control systems, radar, sonar, weapons and motors. Our products consists of state-of-the-art static power conversion equipment of the latest available technology.

    Static converters for naval applications comply with MIL-STD-1399 whilst meeting the size and weight restrictions imposed by narrow shipboard passageways and hatches.

    The converters feature modular construction and parallel operation of more units with accurate load sharing. Electronics are housed in stainless steel frame cabinets and shock mounts according to the requirements of naval ships.


    Helicopter Supply 440V / 60Hz - 28VDC / 300A, Model: 2056

    Key features

    • Designed for naval vessels
    • Output acc. MIL-STD 704F
    • Overload capacity 1,8 kA / 10 sec
    • Monitoring & Control TFT display
    • DSP control electronic
    • Integrated Logistic Support
    • Customer specific modifications

    3-phase Converter 440 VAC / 60 Hz to 350 VDC, Model: 2038

    Key features

    • Input power factor of nearly ”1” (sinusoidal input current waveform)
    • Highly reliable design allows paralleling up to 5 power units of 35 kW
    • Hot replacement, spare unit changeable under full operational conditions
    • High quality DC output voltage with galvanic insulation
    • Integrated fault detection system (BIT)
    • 1 x Operating unit & monitoring panel
    • 1 x Redundant 35 kW power unit
    • 1 x Heat exchanger
    • 2 x Cooling water distribution units
    • Aluminium cabinet including wiring
    • STANAG 1008 /DNV/GL

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