DCPM-3

3A Low-Voltage Power Supply

14-28 VAC Input Produces 5-28 VDC Output

Universal Power Module

The DCPM-3 series power supplies are a versatile series of 3A linear power supplies that are clean, well regulated with protected against overheating, over current, and reversed battery connection.  This clean performance allows these power supplies to power the most sensitive electronic devices.  The DCPM-3-A is adjustable from 5-28 VDC that can be used as a universal supply to power a wide variety of devices requiring up to 3As.   The LP-3-12, 12v and LP-3-3-24, 24v are fixed power supplies with Battery Chargers that can provide uninterruptable low voltage power with the appropriate lead acid battery(s).  The lead acid batteries may be any AH capacity you require from 4AH to 100AH depending on your standby requirements.  The LP-3 battery charger will  Precisely charge a Sealed, Gel, AGM, or flooded Lead Acid Battery(s).  The LP-3’s with battery charger have a 4A auto resetting PTC Circuit Breaker between the Battery and the DC output to protect against over current.

To test the LP-3’s with standby batteries.  It is recommended that on a regular basis, the output should be checked for proper voltage and current while the AC power is disconnected.

Because these power supplies are a linear device that must dissipate all of the power between the input and the output please review the output current graph below to be sure your input voltage, output voltage and load current comply.

  • DCPM-3-A   5-28 VDC Adjustable DC Power Supply module
  • LP-3-12   12 VDC 3A Power Supply/Charger module
  • LP-3-24   24 VDC 3A Power Supply/Charger module
  • LP-3ESX12   DCPM-3-12, TX-16100, in 8”x9” Enclosure
  • LP-3EX24   DCPM-3-24, TX-24100, in 14”x9” Enclosure
  • LP-3EX12   DCPM-3-12, TX-16100, PDM-4, in 14”x9” Enclosure
  • LP-6EXDP  12v 3A, TX16100, 24v 3A, TX24100, in 14”x9” Encl.

Features

  • Up to 3As of Continuous DC Output Current
  • 12v & 24v models have battery charger with instant Transfer to Standby
  • Clean Linear Power
  • Electronically Protected Against
  • Over Current and Temperature
  • Precise Output Regulation
  • Input and Output are Surge Protected
  • Input can be low AC or DC volts
  • Multiple units may be connected in Parallel for Higher Output Current
  • Available as a module or mounted in any one of our Enclosures with any of our transformers and accessions

Specifications

  • Input AC Transformer
    • Terminals 1 & 2 identified by  .................................   IN
    • LP-3-12 12 VDC at 3A DC Output  ................... 14 – 18 VAC at 80VA
    • LP-3-24 24 VDC at 3A DC Output  .................... 24-28 VAC at 100VA
    • DCPM-3 AC or DC .................................  5 – 28 VAC at 100VA
      • Input, Output, & Load current must comply with graph
    • AC LED Indicator .......................................... Green LED
    • DC LED Indicator ............................................ Red LED
  • DC OUTPUT
    • Terminal 3 & 4 identified by  ................................   -DC+
    • DC Output voltage Nominal  .....................    12 VDC/24 VDC/5-28v
    • Output voltage typical  .................   13.65 VDC/27.30 VDC/5-28 VDC
    • DC Current maximum continuous rating   .......................   3.0A
    • If charging standby Battery Reserve  .......................    500ma
    • Ripple @ 80% load  .....................................  40mv pp Typ
    • Short circuit current limiting  ...............................   Yes
    • Thermally Protected  ..........................................   Yes
    • 1 year long term Stability  ...............................    .03 VDC
  • Battery Charging: LP-3-12 & LP-3-24
    • (Header plug marked [–Bat+])
    • The battery charger is precision set to float charge 12V or 24V Sealed, Gel or wet lead acid batteries.  Two 12V batteries are connected in series for 24V.  A 12” battery cable assembly is provided to connect the module to a battery.  Red (+) 12 VDC, Black (–) Neg.
    • Optional 12” cable assembly for connecting two 12v batteries
    • in series for 24volts  .......................................   24SW
    • Optional 36” battery cable (1) P/N:   ...................   WA-36IBAT
    • Amp Hour capacity range  ...............................    4AH-100AH
    • Battery Fuse  .............................................    4A PTC
    • Reverse battery hookup protection  .............................  Yes
    • The recharge Rate = 3 – Load
    • Hours to recharge = Bat AH capacity /Amp Rate
    • To select battery(s), see standby selection table
  • Environmental:
    • Humidity  ...................................   95% RH Non Condensing
    • Ts Storage Temperature    ............................   -40oC – 85oC
    • Ot Operating Temperature Range 100% rating:
      • Ot module only  ................................   -20oC – 36oC
      • Ot mounted in Enclosure   .....................    -20oC – 26oC
      • Each 3% load reduction increases Ot by:  .................  1oC
  • Mechanical Characteristics:
    • Center-to-Center Terminal Block Spacing with Wire ready 
    • self Clamping Screws  .....................................    .375”
    • Module Size  ..............................   2.66”H x 2.92”W x 2.6”D 
    • Mounting Holes Center-to-Center  ....................  1.41”W x 2.5”H
    • “ES” Enclosure size  ............................   8”W x 9”H x 3.5”D
    • “E” Enclosure size   ...........................   14”W x 9”H x 3.5”D
    • DCPM-3 module  .............................................    3.6oz
    • 100va Transformer  .......................................     2.8lbs
  • Safety
    • DCPM-3 Series meets safety  .......................  UL1950 & EN60950
    • Lead Free RoHS compliant