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AX082400: 48Vdc/12Vdc Step Down Converter

The DC-DC Converter provides clean 12 VDC power suitable for 12V solenoids, relays and other electrical systems. For operation under the most harsh and demanding conditions, the IP67 rated unit is fully sealed and potted in an enclosure to protect against moisture, shock and vibration. Power from a battery or other source of 48 VDC nominal is converted to a 12 VDC output regulated to 1%. The unit has a high current output capability of 15 Amp nominal (18 Amp peak). The device manages heat dissipation and requires no forced cooling systems. Short circuit and reverse polarity protection 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 180 Watts of output power, the DC-DC Converter features proprietary dual-phase topology for a high efficiency of >93%.


  • Designed to interface between 48Vdc batteries and 13.8Vdc electrical systems
    such as solenoids, relays and other electrical systems found on mobile equipment, lift trucks and buses.

DC/DC Converters, Power Supplies

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Technical Specifications:48Vdc/12Vdc Step Down Converter
Order Code:P/N: AX082400 (converter only)
KIT P/N: AX082400K (includes wire harness)
Input:48VDC (36-72VDC)
Output:11.9 To 13.8Vdc
Factory set at 13.8 Vdc (nominal) +/- 1% (180W)
Output Current:15 A continuous (18A peak)
Protection:Reverse polarity, Input under/over voltage protection, Overtemperature protection, Short-circuit protection
Protection Rating:IP67
Enclosure:5.35 x 7.00 x 2.39 inches (W x L x H including connector)
136.0 x 177.7 x 60.6 mm
Electrical Connections:4 pin TE Deutsch connector P/N: DTP13-4P
Operating Conditions:40- to 85°C (-40 to 185°F)
PDF Datasheet: Click icon for PDF datasheet.

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