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January 19, 2024

72 volt to 12 volt DC/DC Converters, 5 amps to 40 amps

72 volt to 12 volt dc to dc converter regulator

72 volt to 12 volt, DC DC Buck-Boost converter at low cost. Suitable for operating 12 volt consumer equipment in locomotives and trains which have a 72 volt DC starting system

72 volt input inverters

72V input 110V or 220V inverters
These are regulated, switching power supplies or DC to DC Converters.

Though the standard output is 12 volts, there is a small range of voltage adjustment using a trimpot inside the unit, or you can specify a factory set output voltage from 13.8 to 24 volts with a minimum order.
Price/Quantity Input voltage Output voltage 1-10


72 to 12 volt DC/DC regulator
Consumer style 9 amps See bottom of this page for specifications
72VDC 12VDC 9A Obsolete, sorry, please consider 5 amp 72VDC to 12VDC DC-DC converter, heavy duty industrial
Click on photos below for full data sheet of these products:      

Industrial 10 amps 12V output

5 amp 72VDC to 12VDC DC-DC converter, heavy duty industrial
1-2 weeks delivery
72V 12V 5A  

Industrial 10 amps 24V output

5 amp 72VDC to 24VDC DC-DC converter, heavy duty industrial
1-2 weeks delivery
72 V 24V 2.5A  

Heavy industrial 15 amps 12V output
200 watt 72 to 12 volt DC/DC converter, heavy industrial

1-2 weeks delivery
72V 12V 15A  

Heavy industrial 7.5 amps 24V output
200 watt 72V to 24volt DC/DC converter, heavy industrial

1-2 weeks delivery
72V 24V 7.5A  

PBCD315-72-12 battery charger

72V to 12V DC/DC battery charger, heavy duty industrial and military
72V 12V 20A battery charger Charges a 12 volt battery from a 72V source at 20 amp charge current

Heavy duty industrial 40 amps 12V output
72V to 12V DC/DC converter, heavy duty industrial

72V 12V 40A  

Heavy duty industrial 20 amps 24V output
72V to 24V DC/DC converter, heavy duty industrial

72 V 24V 20A  
Model Number PST-UDC/7212-9
Input Voltage Range 55V - 77V DC (Nominal 72VDC)
Output Voltage 12 volts (standard automotive voltage)
(inquire for custom voltage)
Output Voltage Adjustment Range 11 volts to 13.9 volts by internal pot (VR4)
Continuous Current 9 Amps
Continuous Output Power 124 Watts
Peak Output Power 10 Amps (case may get very hot at 10 Amps continuous)
Peak Output Current 10A
No-Load Overhead <100 mA
Line Regulation 1%
Load Regulation 3%
Ripple Noise <50 mV (rms)
Efficiency >75-85%
Protection (1) Input polarity protection.
(2) Input low voltage drop out [power off reset]
(3) Input high voltage protection [power off reset]
(4) Output short circuit protection [auto reset
(5) Output current limit [auto resume]
(6) Over temperature protection [power off reset]
Dimensions 300mm x 88mm x 42mm (L x W xH)
(11.8 in x 3.5 in x 1.7 in)
See drawing
Indicators Power LED (red) and Output on LED (green)
Drawing Click Here for Drawing
Weight 1.0 kg, 2.2 pounds
Isolation Fully isolated
Temperature Range 5-55°C
Connections Input IEC 3-prong computer-style AC style connector for using with custom plugs, Binding Posts (Red: “+” ; Black “-“)
Adapters included Comes with a cigarette ligher adapter socket and cord in case you want to connect to it using a cigaratte ligher plug

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  • Designed for converting an unregulated/unstable dc voltage to a regulated dc voltage.
  • Suitable for Locomotive and Train applications
  • Good load and line regulation
  • Wide input voltage input range
  • Fully electrical protected
  • Anodized blue colour aluminium extrusion housing
Model UDC-7212-9 Nominal Input Voltage 72 DC Input Voltage Range 65-77V DC Output Voltage 13.8V DC Load Regulation ±3% Capacity in Watts 120W Continuous Output Current 9A Efficiency 75-85% Ripple Noise 100mV (rms) No Load Consumption < 100mA Input Connection IEC Socket Output Connection Binding Posts Protections Input Polarity Input Fuse Input Low Voltage Drop Out Input High Voltage Protect Output Current Over Temperature Protect Operating Temperature Range 5-55 C Casing Aluminium Extrusion Dimensions (L x W x H) 270mm x 88mm x 42mm Weight 1Kg Colour Deep Blue

OEM Battery Chargers Inexpensive high current DC/DC converter stabilizes voltage in locomotive and train applications.

OEM Battery Chargers Also can be used to provide regulated voltage from a sealed lead acid or other battery--excellent for special purpose UPS DC battery backups.

OEM Power Supplies High efficiency 75-85%.

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