Direct current compressors

  • Overview
  • Documents
  • Software

Reduce running costs in cooling and save up to 250W per hour*

With our outstanding DC compressors for portable boxes, cars, vans, boats, trucks, etc., Danfoss has transcended the barriers for mobile refrigeration. The excellent performance of the DC series safeguards food, medical and telecommunication.

In areas relying on battery power for up to 16 hours a day, be ensured that BD compressors will ever cool your battery and thus optimize their life lasting. Secure your signal and save your maintenance and replacement costs.

Battery drain being a big issue, BD compressors will allow you to:

  • Use an energy efficient direct current (DC) compressor with a high COP.
  • Build a cooling system that can run on batteries, solar cells and wind turbines without needing conversion to alternating current (AC).
  • Simplify the design of the overall system and ensure maximum performance.

*Compared to other solutions that rely on AC and 230 V AC conversion.



  • BD35F/50F/80F (12/24V) and DL19H/22H/30H (12/42V) compressors for R134a in mobile refrigerators and freezers.
  • GLT80TDC (24/42V) and BD250GH.2 /BD350GH (12/24V) compressors for R134a HBP for mobile spot cooling systems.
  • BD35K/50K, R600a compressors for solar-powered applications.
  • BD80/BD100CN, R290 compressors in stationary applications.
  • BD250GH.2 / BD350GH compressors for 48 V DC, R134a HBP for telecommunication.

All compressors are equipped with an electronic control unit with built in speed control, thermostat signal, thermal protection, safety against destructive battery discharge, electronic thermostat and fan speed control on selected models via PC software.

Features and benefits

Outstanding DC compressors for people in motion

Highly reliable and efficient solutions safeguard food, medical and telecommunication

Electronic control unit with built-in speed control, thermostat signal, thermal protection, safety against destructive battery discharge

The Danfoss direct current compressor for refrigeration applications

Technical leaflet

Download the technical leaflet for BD250GH.2 direct current compressor R134a

Products advantages & customer benefits

Functions ... ... that reduce total system cost for you:
  • nominal 48 V DC power supply
  • protection against wrong polarity
  • evaporator & condenser fan control
  • allows direct supply from battery w/o DC/AC converter
  • no additional device needed and easy to install
  • no additional controller needed
Functions ... ... that reduce energy consumption for you
  • direct connection to batteries
  • DC permanent magnet motor
  • 40-100% speed control
  • ECO function
  • no power loss in conversion from DC to AC
  • higher efficiency motor
  • better efficiency at low load and higher system COP
  • saving energy and reducing noise
Functions ... ... that reduce service costs on your application:
  • fan failure detection
  • start & stop delay
  • battery protection
  • PCB temperature protection
  • safety feature, easy trouble shooting
  • safety setting that gives higher reliability
  • avoid drainage of battery / increase lifetime
  • protection of PCB from overheating
technical literature

DC compressor datasheets

Find datasheets for direct current compressors.


Type Name Language Valid for Updated Download File type
Catalog Hermetic compressors for DC Voltage English Multiple 01 Dec, 2014 16.0 MB .pdf


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