Dantherm’s DC Air Conditioners are slim line true DC air conditioners for energy-efficient cooling in Telecom networks.

Telecom site uptime during power outage/intermittent power

Dantherm DC Air Conditioners are soft starting and avoid the typical start-up inrush current as seen by AC compressor drives. It is built to run on battery backup, thereby ensuring full site uptime and ensuring site income, also during power outage.

Optimal for PV or hybrid site cooling

The safety feature: low voltage disconnect prolongs battery life in case of low voltage from batteries and the Dantherm DC Air Conditioners are therefore highly suitable sites with battery back-up power and hybrid sites powered with renewable energy sources such as Photo Voltic — solar, wind, fuel cells or hydro.

Energy-efficient DC cooling

Because our DC Air Conditioners are capacity regulated, they only provide the exact amount of cooling needed. This means that they are much more efficient in use than traditional air conditioners, inverter based DC Air conditioners and even traditional DC Air Conditioners.

Cooling in challenging outdoor environments

The DC Air conditioner line is designed for cooling of equipment in challenging outdoor environments and consists of quality components to ensure the long service life demanded by leading Telecom companies — knowing that a telecom network is dependent on sites running 24-7-365 under any ambient conditions.

Designed for battery cooling compartments

The 450 version is designed especially for battery cooling with a set cooling point of 25°C, small and compact for easy installation.


  • Radio base stations
  • Electronics enclosures
  • Hybrid Telecom Sites
  • DC Powered Sites
  • Battery Compartments
  • Power supply rooms
  • Network & computer rooms
  • Automation control cabinets
  • Drive stations
  • Bill boards
  • Kiosks
  • Ad boards
  • Displays

Features and Benefits

Dantherm DC Air Conditioner 450

  • Clean internal environment: closed loop cooling
  • Low inrush current: true DC air conditioner
  • No power loss in conversion: no inverter
  • Energy-efficient: DC-supplied and capacity-controlled
  • Easy installation: Mono-block, plug-and-play units
  • Lower carbon footprint: Environmentally friendly refrigerant R134a
  • Easy maintenance: Small and compact design
  • Expected service life: 10 years
Supply Voltage Nominal 48 V DC 45-57
Capacity in kW at 35°C inside and 35°C ambient 0.450
Capacity in kW at 25°C inside and 50°C ambient 0.250
Max internal air flow m³/h (free blowing measurement)  210
Weight in kg  18.5
Closed loop cooling. bullet
DC-supplied. bullet
Mono-block, plug-and-play. bullet
Small and compact design. bullet
Casing of thin plate aluzinc construction. Powder coat painted RAL 7035. bullet
Anti-theft installation bullet
Expected service life minimum 10 years. bullet
Thorough testing: leakage, function, voltage withstanding, ground (0) bullet
Controllers and sensors  450
Controller built into compressor. bullet
DC fans controlled on/off. bullet
Fixed cooling set point. bullet
Variable cooling set point 20°C to 40°C.
Built-in CC3 Controller
Built-in CC0 Controller
Variable fan speed control.
Changeable parameters.
Ambient temperature sensor.
On-board temperature sensor
Sensor placed in return air stream.

Download DC Air Conditioner Data sheets