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DC Down Converters  - 12 VDC Output  High Efficiency rated  40 - 165 amp 
American Power Systems power DC rack mountable high power down converters offer true high     power and super high efficiency at  loads from 10% to 100% of rated capacity.
Marine 24VDC applications convert down to 12VDC.
 
 
   Electrical Specifications - Down converters
  • 80 amp unit -   24 to 12VDC model APS 28DN12-80
  • 100 amp unit - 24 to 12VDC model APS 28DN12-100
  • 120 amp unit - 24 to 12VDC model APS 28DN12-120
  • 165 amp unit - 24 to 12VDC model APS 28DN12-165
  • Wide Input window 13VDC to 40VDC
  • Output voltage stabilized at 12VDC
  • 94% efficiency typical 
  • EMI certified to UN ECER10.02and ISO 13766 
  • ESD certified to SAE J1113/13
  • Power Schematic
   Environmental Specifications
  • Thermal Shock        -  MIL-STD-810F 
  • Humidity                 -  MIL-STD-810F
  • Salt Fog                  -  MIL-STD-810F
  • Dust                        - MIL-STD-810F 
  • Altitude - 15000 ft     - MIL-STD-810F
  • Random  Vibration    - MIL-STD-202G
  • Mechanical Vibration - SAEJ1455
  • Functional Shock      - MIL-STD-202G
  • Pressure Wash         - SAE J1455
   Photos

 

       

 

       

 

                DC upconverter 28VDC

 

     120 and 165 amp unit         80 and 100 amp

Features 
  • Locked 12 VDC output

  • Wide input voltage range 13VDC to 40VDC

  • Rackable Power

  • 94% high efficiency, low heat rejection 

  • Fully sealed, waterproof

  • Rack mount kit

  • High ambient temp stabilized

  • Marine 12VDC applications

  • Filtered, stabilized voltage

  • Built in output current limit  

  • Continuous output short circuit protection 

  • -40C - +85C with no derate

  • Wide input voltage window designed to work with alternator swing voltages

  • 2 year warranty

  • Small Size

  • 13" x 5" x 2.5" for APS28DN12-80  5.5 lbs

  • 13" x 5" x 2.5" for APS28DN12-100  5.5 lbs

  • 13.5" x 8" x 3.5" for APS28DN12-120  13.0 lbs

  • 13.5" x 8" x 3.5" for APS28DN12-165  13.0 lbs

Applications
  • 24VDC down to 12 VDC power for military transceivers and power amplifier kits used in a 24VDC buss commercial vehicle or military vehicles
  • 24VDC down to 12 VDC military tactical transceivers and amplifiers from vehicle 24V battery or 24VDC power source
  • Recommended for transceivers, power amplifier kits, comm equipment rack in fixed installations, command posts, TOC, communication vehicles, boat and transportable/portable applications
  • 24VDC down to 12 VDC  mobile power     
  • Counter-Radio Controlled Improvised Explosive Device Electronic Warfare (CREW)
  • 12VDC convert for Marine Power from 24 VDC
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