New Products

Here you will find the latest power supply designs and technology from the Wilmore Electronics new products group. If you would like additional information about our new products or other Wilmore Electronics power conversion products, please contact us by email, telephone, or fax using the information shown at the top of this page.

Extended Input Range DC-DC Converters

Series 1640XR DC-to-DC converters provide an isolated, regulated and well-filtered DC output voltage from nominal 24V, 48V, and 130V battery systems. This output is galvanically isolated from the source and chassis and, therefore, may be connected either as a positive or a negative output. Two available input-voltage ranges (20V-80V and 40V-150V) allow one version of the converter to cover multiple battery voltages. 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. Models with outputs of 13.6 VDC and 24 VDC are described in this bulletin.

Series 1640XR

  • Two extended input range versions: 20V-80V and 40V-150V
  • 200-watt and 100-watt models
  • Input-to-output isolation
  • -40°C to 70°C temperature range
  • Convection cooled
  • Electrically and mechanically rugged

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).
  • Mounting flange on base is 0.5 (13) wide (each side). Terminal block extends approximately 0.5 (13) from front panel.

Product Bulletins (PDF files)

74V DC Power Conditioner for Locomotives

The Model 1743-74-10 power conditioner is a DC-DC converter that enables nominal 74-volt electronic equipment to operate through wide variations in the locomotive power bus while also providing additional filtering and transient-withstand protection. The converter automatically boosts abnormally low input voltages and limits abnormally high input voltages to within approximately 60 to 80 VDC. At input voltages in the normal operating range between these undervoltage/overvoltage anomalies, the converter provides a filtered and protected output voltage that is directly proportional to its input voltage. Conservative electrical design, very high operating efficiency and rugged mechanical construction make this converter well suited for powering voice/data radios and other sensitive electronic loads in the harsh railroad vehicle environment.

Model 1743 Power Conditioner

  • Operate locomotive electronics through undervoltage/overvoltage power bus anomalies
  • 20-135 VDC Operating input voltage
  • 60-80 VDC Output voltage at up to 10 amperes output current
  • -40°C to +70°C Operating temperature range, convection cooled
  • Mechanically rugged and conservatively rated

Dimensions:

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

Product Bulletins (PDF files)

2200 VA DC - AC Sine Wave Inverters (2U)

Designed for space-limited applications within the telecommunications, data processing and utility industries, the Model 1747 DC-to-AC inverter provides up to 2,200 volt-amperes in only 3.5 inches of vertical rack space. The inverter produces a well-regulated 115-Vac, frequency-stable 60-Hz sine-wave output (50Hz models are also available) from station batteries or other DC sources. Standard versions permit operation from either positive or negative 24-VDC, 48-VDC or 130-VDC sources because the DC input is galvanically isolated from the AC output and from the chassis. The inverter is compact, lightweight and compatible with either 19-inch or 23-inch equipment racks.

Series 1747 DC - AC Sine Wave Inverter

  • 24, 48, or 130 VDC input
  • Isolated, regulated low-distortion output
  • Quartz clock frequency stability
  • Approximately 90% efficient
  • External auto-transfer switch available for UPS / redundant-power applications

Dimensions given in inches (mm):

  • Height 3.50”(88.9) 2 rack spaces

Product Bulletin (PDF file)

1000 VA DC - AC Sine Wave Inverters (1U)

The inverter’s low-distortion sine-wave output makes it particularly well-suited for powering sensitive electronic loads, such as telecommunication and data processing equipment (with or without power-factor-corrected power supplies), as well as loads normally considered difficult for inverters, such as small motors.

Series 1746 DC - AC Sine Wave Inverter

  • 24, 48, or 130 VDC input
  • Isolated, regulated, frequency-stable output
  • Approximately 90% efficient
  • Rugged, conservative design
  • Available with integral high-speed transfer switch for UPS/standby-power applications

Dimensions given in inches (mm):

  • Height 1.75”(44.45) 1 rack space

Product Bulletin (PDF file)

500 VA DC - AC Sine Wave Inverters (1U)

The inverter’s low-distortion sine-wave output makes it particularly well-suited for powering sensitive electronic loads, such as telecommunication and data processing equipment (with or without power-factor-corrected power supplies), as well as loads normally considered difficult for inverters, such as small motors.

Series 1745 DC - AC Sine Wave Inverter

  • 12, 24, 48, or 130 VDC input
  • Height 1.75” (1 rack space)
  • Isolated, regulated, frequency-stable output
  • Highly efficient, convection cooled
  • Rugged, conservative design
  • Available with integral high-speed transfer switch for UPS/standby-power applications

Dimensions given in inches (mm):

  • Height 1.75”(44.45) 1 rack space

Product Bulletin (PDF file)

1000 VA DC - AC Sine Wave Inverters

Compact and rugged, the 1000-VA Model 1756 DC-to-AC inverter is designed to perform equally well in stationary and mobile applications. The inverter provides an isolated, regulated 120-VAC, frequency-stable 60-Hz sine-wave output and is available in 24, 48 and 130-VDC input versions. The conservatively rated Model 1756 can operate continuously at maximum rated power over a -10°C to +50°C ambient temperature range. It is well suited for powering a variety of loads, from sensitive electronic equipment to small motors and nonlinear loads normally considered difficult for inverters. The Model 1756 is available as a plain inverter or with built-in automatic load switchover features to permit operation in UPS or standby-power modes.

Series 1756 DC - AC Sine Wave Inverter

  • 24, 48, or 130 VDC input
  • Isolated, regulated, frequency-stable output
  • Approximately 90% efficient
  • Rugged, conservative design
  • Available with integral high-speed transfer switch for UPS/standby-power applications

Dimensions given in inches (mm):

  • 4.1" (104) high x 9.7" (246) wide x 13.6" (345) deep (excluding flanges).

Product Bulletin (PDF file)

Wide Input (20-130V) DC - DC Converters for Locomotives

Series 1620XR DC-to-DC converters provide an isolated, regulated and well-filtered DC output voltage from 74-VDC and 37-VDC electrical systems on locomotives and other rail vehicles. An extended input voltage range enables these converters to continuously power onboard electronics in the presence of large variations in the vehicle’s battery voltage. A field-proven input-transient protection system, conservative electrical design 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 1620XR DC - DC Converters

  • 20-130 VDC input voltages
  • 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 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)

If you would like additional information about our new products or other Wilmore Electronics power conversion products, please contact us by email, telephone, or fax using the information shown at the top of this page.