DC-DC Converters
Mobile and Stationary Applications

Wilmore DC-DC converters for mobile applications power all types of 12-volt and 24-volt electronic equipment on construction and maintenance vehicles, forklifts, industrial vehicles, transit buses and rail vehicles.

Our DC-DC power converters for 74-volt and 110-volt railroad locomotives and 24-volt and 36-volt rail/transit vehicles are transient protected and mechanically rugged. We can provide converters to operate a variety of DC-powered on-board electronics with power requirements from a few watts to several hundred watts.

For stationary (fixed location) applications such as communications network installations and railroad track-side (wayside) sites, many of the DC-to-DC converters shown here provide output voltage regulation and input-output isolation in addition to voltage conversion.

Examples of our DC-DC converters are shown below. Please scroll down for descriptions of these products and links to the Product Bulletins.

Isolated 12V to 12V DC-DC Converters

Designed to perform equally well in mobile and stationary applications, these converters can be used to operate low-power radio transceivers, data modems and other sensitive electronic loads.

Model 1730 DC-DC Converter

  • 12 VDC input voltage
  • 12 VDC output voltage, 2A
  • Input to output isolation (isolate from signal battery)
  • Stationary (wayside) and mobile applications

Dimensions given in inches (mm):

  • 1.7" (43.1) high x 5.3" (134.6) wide x 7.7" (195.5) deep (excluding terminal blocks).
  • Baseplate mounting holes accept #10 hardware on a 4.9" x 4.9" pattern.

Product Bulletin (PDF file)

Isolated 12V and 24V DC-DC Converters

Designed to perform equally well in mobile and stationary applications, these converters can be used to power radio transceivers, telecommunications equipment and other sensitive electronic loads.

Series 1675 DC-DC Converters

  • 12 and 24 VDC input voltages
  • 12, 24, and 48 VDC output voltages
  • 200 watt output power
  • Input to output isolation (isolate from signal battery)
  • Stationary (wayside) and mobile applications

Dimensions given in inches (mm):

  • 3.6" (91) high x 6.1" (155) wide x 10.3" (262) deep, including mounting flanges and terminal block

Product Bulletin (PDF file)

Wide Input (20-56 VDC) DC-DC Converters

Applications include powering voice and data radio transceivers and other critical electronic equipment in harsh vehicular environments.

Series 1640 DC-DC Converters

  • Accepts 24, 36 and 48 VDC input voltages
  • 12 and 24 VDC output voltages at 7.5 or 15A (others available)
  • 100 and 200 watt output power
  • Isolated, regulated output
  • DC power converter for forklifts and industrial vehicles

Dimensions given in inches (mm):

  • For 7.5-ampere models: 1.9" (48) high x 7.0" (177) wide x 9.0" (228) deep (excluding flanges, terminal block and fuse holder).
  • For 15-ampere models: 3.0" (76) high x 7.0" (177) wide x 9.0" (228) deep (excluding flanges, terminal block and fuse holder).
  • Mounting flange on base is 0.5" (13) wide (each side). Fuse holder extends 0.65" (16.5) from front panel.

Product Bulletin (PDF file)

Wide Input (20-100V) DC-DC Converters for Locomotives

A field-proven input transient protection system and extremely rugged mechanical construction make them especially suited for powering voice/data radios and other sensitive electronic loads in the harsh railroad vehicle environment.

Series 1620C DC-DC Converters

  • 20-90 VDC input voltages
  • 5, 12, and 24 VDC output voltages
  • 100-watt or 200-watt output power models
  • Input-surge/transient protection
  • Isolated, regulated output

Dimensions given in inches (mm):

  • For 100-watt models: 1.9" (48) high x 7.0" (177) wide x 9.0" (228) deep (excluding flanges and terminal block).
  • For 200-watt models: 3.0" (76) high x 7.0" (177) wide x 9.0" (228) deep (excluding flanges and terminal block).

Product Bulletins (PDF files)

Locomotive/Rail-Transit

A field-proven input transient protection system and extremely rugged mechanical construction make them especially suited for powering voice/data radios and other sensitive electronic loads in the harsh railroad vehicle environment.

Series 1620 DC-DC Converters

  • 36, 74, and 110 VDC input voltages
  • 5, 12, and 24 VDC output voltages
  • 100, 200 and 400 watt output power
  • Input-surge/transient protection
  • Isolated, regulated output

Dimensions given in inches (mm):

  • For 36v, 74v and 110v 100-watt models: 1.9" (48) high x 7.0" (177) wide x 9.0" (228) deep (excluding flanges and terminal block).
  • For 36v, 74v, and 110v 200-watt models: 3.0" (76) high x 7.0" (177) wide x 9.0" (228) deep (excluding flanges and terminal block).
  • For 74v 400-watt models: 3.25" (83) high x 8.6" (218) wide x 11.25" (286) deep (excluding flanges and terminal block).

Product Bulletins (PDF files)

74V to 14.2V 400-Watt DC to DC Converters

The unit is rated for a continuous output current of up to 30 amperes and operates at high efficiency with a very low quiescent current drain, making it ideally suited for powering both continuous-duty electrical loads and equipment such as radio transceivers where extended periods of operation in “standby” mode are encountered.

Model 1740 DC-DC Converter

  • 74 VDC input voltage
  • 14.2 VDC output voltage
  • 400-watt output power rating
  • Input surge/transient protection
  • Input-to-output isolation
  • -40°c to +70°c operating temperature range (convection cooled)
  • Mechanically rugged and conservatively rated

Dimensions given in inches (mm):

  • 4 Modular Concept Units (MCU’s) as defined in Association of American Railroads Standard S-590.

Product Bulletins (PDF files)

12V/24V Input - 74V Output DC-DC Converters for Rail Vehicles

Operate 74−V locomotive electronics on 12−V hi−rail trucks, 24−V maintenance machines and 37−V rail transit vehicles.

Series 1737 DC-DC Converters

  • 12, 24, and 36 VDC input versions available
  • 74 VDC output voltage
  • Output current up to 4 amperes
  • −40°C to +70°C operating temperature range
  • Convection Cooled

Dimensions given in inches (mm):

  • 2.5" (64) high x 8.2" (203) wide x 7.6" (191) deep (excluding flanges and terminal block).
  • Mounting flange on base is 0.5" (13) wide (each side).
  • Terminal block extends 0.8" (20) from top panel.

Product Bulletin (PDF file)

Locomotive Voltage-Boosting DC-DC Converters

Operate PTC radios and electronics through locomotive “cranking” events.

Series 1741 Voltage−Boosting DC−DC Converters

  • 60 VDC minimum output at input voltages down to 20 VDC
  • Output power ratings of 200 and 400 watt
  • −40°C to +70°C operating temperature range
  • Convection cooled

Dimensions given in inches (mm):

  • Model 1741-60-3.5: 1.9" (48) high x 7.0" (177) wide x 9.0" (228) deep (excluding flanges, terminal block and fuse holder).
  • Model 1741-60-7: 3.0" (76) high x 7.0" (177) wide x 9.0" (228) deep (excluding flanges, terminal block and fuse holder).

Product Bulletin (PDF file)

24V to 12(13.6)V DC-DC Converters

The ruggedized mechanical construction and conservative electrical design ensure long service life and dependable performance in harsh environments such as those encountered in fleet trucks, transit buses, heavy construction equipment and other industrial vehicles and equipment.

Series 1645 DC-DC Converters

  • 24 VDC input voltage
  • 13.6 VDC output voltage
  • 400 Watt (30A) output power
  • High power-conversion efficiency (94% typical)
  • -30°C TO +60°C temperature range
  • Rugged design and construction for mobile applications
  • Light weight, low profile, easy to install

Dimensions given in inches (mm):

  • 2.5" (64) high x 7.9" (201) wide x 7.9" (201) deep, excluding mounting flanges and terminal block.
  • Mounting flange on base is 0.7" (18) wide (each side).
  • Terminal block extends 1.0" (26) from front panel.

Product Bulletin (PDF file)

Mobile Radio DC-DC Converters

Designed to power 12-volt or 24-volt equipment from a variety of vehicular battery systems.

Series 1649 and 1650 DC-DC Converters

  • 24 to 12 VDC and 12 to 24 VDC voltage converters
  • Polarity-reversing (-12V to +12V)
  • High conversion efficiency
  • Low standby power consumption

Dimensions given in inches (mm):

  • Model 1649: 1.9" (48.26) high x 4.5" (114.3) wide x 6.9" (175.26) deep excluding mounting flanges and fuse holder.
  • Model 1650: 1.9" (48.26) high x 4.5" (114.3) wide x 5.5" (139.7) deep excluding mounting flanges and fuse holder.

Product Bulletin (PDF file)

If you would like additional information about our DC-to-DC converters for mobile communications or other Wilmore Electronics power conversion products, please contact us by email, telephone, or fax using the information shown on this page.