Telecom DC compressors

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

BD250GH.2/BD350GH with 48 V DC for telecommunication battery cooling.

In areas relying on battery power for up to 16 hours a day, be ensured that BD compressors will ever cool your battery at 25°C 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.

Technical leaflet - Danfoss

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


Type Name Language Valid for Updated Download File type
Brochure BD1.4F Micro VSD Compressor English Multiple 08 Oct, 2014 257.8 KB .pdf
Data sheet BD250/250GH Direct Current Twin Compressor R134a 12-24V DC English Multiple 24 Jun, 2011 620.6 KB .pdf
Data sheet BD250GH.2 Direct Current Compressor R134a 48V DC English Multiple 16 Jun, 2017 372.4 KB .pdf
Data sheet BD250GH.2 Direct Current Compressor R134a, 12/24V DC English Multiple 25 Apr, 2017 527.9 KB .pdf
Brochure BD250GH2/BD350GH con 48 V DC for raffreddamento nei sistemi di telecomunicazioni Italian Multiple 16 Oct, 2014 421.8 KB .pdf
Brochure BD250GH2/BD350GH with 48 V DC for telecommunication cooling English Multiple 08 Oct, 2014 354.3 KB .pdf
Data sheet BD350/350GH Direct Current Twin Compressor R134a 12V - with 101N08xx Series Controllers English Multiple 11 Jul, 2013 479.3 KB .pdf



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Coolselector®2 features unbiased calculations for the selection of refrigeration and air conditioning components based on the user’s requirements or based on standard operating conditions.



COMPASS is a software program that helps you to find the best Danfoss alternative for compressors for replacement. The purpose of COMPASS is to provide a direct comparison between Danfoss and competitor products.

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