AX081801K 48Vdc/24Vdc Step Down Converter

The DC-DC Converter provides regulated 26 Vdc/24Vdc power suitable for solenoids, relays and other electrical systems. For operation under the most harsh and demanding conditions, the IP67 rated unit protects against moisture, shock and vibration. Power from a battery or other source of 48 Vdc is converted to a 24-26 Vdc output. The unit has a high current output capability of 13 Amps. The device manages heat dissipation and requires no forced cooling systems. Short-circuit and reverse polarity protections are provided.

The compact unit is designed with extremely rugged surge and transient suppression in addition to sustained over/under voltage protection. With a nameplate rating of 330 Watts of output power, the DC-DC Converter provides proprietary dual-phase topology for a high efficiency of >95%.


Designed to interface between 48V batteries and 26V/24V electrical systems such as solenoids, relays and other electrical systems found on mobile equipment, lift trucks and buses.


  • Wide input operating voltage 36 to 72 Vdc (48 Vdc nominal)
  • Conditioned output of 24Vdc - 26 Vdc (factory set)
  • High current output capability (13 A nominal, 18A peak)
  • 330 Watts output power
  • Switch mode operation delivers very high efficiency >95%
  • Design manages heat dissipation avoiding forced cooling
  • Reverse polarity, input under/over voltage protections
  • Inrush current limit
  • Overtemperature protection
  • Short-circuit protection
  • Rugged and highly reliable
  • Compact size for ease of mounting in confined spaces
  • Suitable for moist, high shock and vibration environments
  • Operational from -40 to 85°C
  • IP67 protection
  • EMI/EMC compliant
  • UL 583 recognition
  • Current sharing, redundancy for parallel applications