As the world’s leading supplier of Transformer Rectifier Units (TRUs) for commercial aircraft since the 1960s, Crane can provide you with field-proven, exceptionally reliable solutions. We have thousands of ELDEC TRUs in the field for a wide variety of aircraft programs. Our Regulated Transformer Rectifier Units operate from 3-phase power sources and are sized from 250 to 400 amps. 

Isolated active AC to DC regulated conversion for DC power

• Input voltage: 115 Vac or 230 Vac
• Output voltage: 28 Vdc or 270 Vdc
• Output current: 200 A to 400 A
• Efficiency: 85 to 90%+
• Power Factor: >0.90 (depending upon power level)
  • Total harmonic distortion (THD):
    • 12 pulse <12%;
    • 18 pulse <7%;
    • 24 pulse <5%;
    • 30 pulse <3%
  • High current overload capability (typically 150% for 2m and 200% for 5s)

Let us help determine the best product for your application. Please use the form below to request additional information or contact us for an off-the-shelf or custom power solution.