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72 volt to 12 volt DC/DC Converters |
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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 |
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These are regulated, switching power supplies or
DC/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.
| 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 |
| 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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Advantages:
- Designed for converting an unregulated/unstable dc voltage to a regulated dc voltage.
- Suitable for Locomotive and Train applications
- Isolated with input and output common ground
- 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
 Inexpensive high current DC/DC converter stabilizes voltage in
locomotive and train applications.
Also can be used to provide regulated voltage from a sealed
lead acid or other battery--excellent for special purpose UPS DC battery backups.
High efficiency 75-85%. |
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PowerStream Technologies: 1163 S. 1680 West. Orem Utah
84058
Phone: 801-764-9060  Fax: 801-764-9061 |
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© Copyright 2000, 2002, 2003, 2004, 2005, 2009, 2010 Lund Instrument
Engineering, Inc. All rights reserved |
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