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High Power 24V (27.2V) power supplies with very low noise for audio and battery backup
applications. |
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Custom design and manufacture of state-of-the-art battery chargers, UPS, and power supplies for
OEMs in a hurry!
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| PST-DLS-27-15 |
Suggested Applications: Audio Display, Demo & Show Vehicles Marine & Recreational Vehicles;
Battery maintenance & storage Retail Store Displays Industrial Applications (available in 24V output) Communications
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efficiency, switchmode power converters. These AC-DC power supplies have a nominal output voltage of 27 volts. They were
originally designed to power automobile audio systems in demonstration rooms and trade shows. They have very low ripple and no
audio noise. Other output voltages can be made upon request.
These AC/DC Power
Converters are ideally suited for the mobile environment. These power supplies feature regulated and filtered outputs which
allow for clean audio demonstrations without the slightest hint of noise.
Their low profile
design allows for convenient mounting under a display vehicle or behind a display board. DLS series power supplies may be used
with or without a battery. When combined with a high quality battery, DLS units can supply transient surges up to 500 amps. Can
also be used in installations where use of a battery is not possible.
All models offer
dual voltage output. (27VDC - 28.8VDC) with a removable jumper accessable from the outside.
Virtually Silent Operation All DLS Power Supplies
utilize an advanced switching design. There is no low frequency transformer hum. Every unit is equipped with a cooling fan that
is virtually silent.
The PST-DLS Power
Supplies all feature thermal control circuitry that engages the fan only when internal temperatures require it (typically 75%
of full load). They have small compact sizes compared to the transformer based power supplies. The switch mode technology
utilized in DLS Power Supplies boasts 86% efficiency. This superior design results in cooler operating temperatures and compact
size.
Up to
six of these lightweight power supplies (identical models only) can be connected in parallel for even greater current
capability.
| Summary table high power 27 volt power supplies |
| Model number |
Continuous Amps |
Watts |
Weight |
UL listed? |
Dimensions |
Mounting Drawing |
AC Service Required |
Price |
| PST-DLS27-15 |
15A |
405 |
5.5 lbs |
UL, cUL |
9.7x6.5x3.5 inches including terminals |
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580VA |
$280.00
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| PST-DLS27-25 |
25A |
675 |
5.5 lbs |
UL, cUL |
9.7x6.5x3.5 inches |
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864VA |
$360.00
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| PST-DLS27-40 |
40A |
1080 |
7.8 lbs |
UL, cUL |
13x6.5x3.5 inches including connectors |
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1296VA |
$667.00
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| PST-DLS2740-220 |
40 Amp 200VAC input |
740 |
7.8 lbs |
Yes |
13x6.5x3.5 inches including connectors |
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1520VA |
$710.00
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**The dual-voltage feature allows the voltage to change from 27 to 28.8 volts by inserting jumper into a
socket on the outside of the charger.
Typical AC outlets are 1540VA, 14 amp service. To run the higher power units you
will need higher power service. Please consult competent technical authorities to determine the total load on the circuit you
intend to supply the power with, including other things plugged into the same line.
Specifications
| Specifications |
| Parameter |
Value |
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| Output voltage |
27.2 or 28.8 |
Adjustable between about 22 and 30 volts with screwdriver |
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| Output voltage tolerance |
±0.7% |
no load |
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| Maximum ripple and noise |
100 mV RMS |
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| Input voltage rage |
108-1132 VAC |
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| Input frequency |
47-63Hz |
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| Typical efficiency |
>80% |
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| Short circuit protection |
Yes |
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| Overload protection |
Yes |
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| Line regulation |
<1% |
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| Load regulation |
<1% |
at output terminals |
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| Recommended output wire gauge |
4 AWG |
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| Output terminals |
4 AWG screw terminals |
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| Fan control |
Proportional-- |
Fan only comes on when needed |
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| Fan type |
Special ultra low audio noise fan |
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| Over temperature protection |
80°C |
Turns off |
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| Ambient temperature |
0°C to 40°C |
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| Storage temperature |
-20°C to 80°C |
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| Warranty |
2 Years |
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PowerStream Technology: 140 South Mountainway Drive, Orem
Utah 84058
Phone: 801-764-9060, 9062, 9063, or 9064
Fax: 801-764-9061 |
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PowerStream Technology
140 South Mountainway Dr.
Orem, UT
84058
Phone: 801-764-9060, 9062, 9063, or 9064
Fax: 801-764-9061
Map & Directions |
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© Copyright 2000, 2002, 2003, 2005, 2006, 2007, 2008, 2009 Lund Instrument
Engineering, Inc. All rights reserved This material is copyrighted original work. It is forbidden to use this
information, text, or graphics in full or in part on another web site without written permission. This prohibition forbids
making derivative text using automatic thesaurus substitution software. |
High power 24 volt power supplies, 27 volt, 28.8 volt |
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