Engine-Off Cabin Cooling Systems | Polar Cab TS


Never lose your cool again. Webasto's exclusive thermal storage technology in the off-highway market provides engine-off operator comfort by maintaining cabin temperatures during down time. Inside the storage core is series of aluminum micro-channels, which route liquid refrigerant around a graphite honeycomb substrate that is impregnated with water. This substrate is capable of storing cold energy at an extremely high efficiency. Cold energy is transferred to the cab for on-demand engine-off cooling which results in operator comfort, fuel savings, reduced idle time and increased productivity.


Product benefits

  • Cold Storage Technology
  • Cooling capacity 1.3 kW (4,450 BTU/h)
  • Reduces engine hours
  • Saves fuel
  • Maintains cabin temperatures
  • No additional batteries required
  • Low power consumption
  • Increased productivity

Polar Cab TS Images


Technical Specifications

Technical Specifications

Maximum Performance

4,450 BTU/h (1.3 kW)
Core Capacity 13,650 BTU/h (4 kW)
Voltage 24 VDC
Refrigerant R-134a
Core and Charge Unit Dimensions (W x D x H) 26 x 26.4 x 28.4 in (660 x 670 x 720 mm)
Air Handler Dimensions (W x D x H) 19.3 x 6.3 x 18.5 in (490 x 160 x 470 mm)
Charge Time 3 Hours
Storage Weight 330 lbs (150 kg)
Air Handler Weight 18 lbs (8 kg)
Charge Amp Draw (Engine-on charging) 50 Amps Nominal / 45 Amps Compressor / 5 Amps Condenser
Discharge Amp Draw (Engine-off discharging) 7 Amps Nominal / 5 Amps Blower / 2 Amps Coolant Pump

*Al technical data is subject to change, +/- tolerance on all specifications


Installation example


Further information

Off-highway brochure
Webasto Product brochure for off-highway

Download our Off-highway brochure.


Polar Cab TS Product Spec Sheet

Download (PDF, 1.3 MB)

Our contact

Webasto Thermo & Comfort North America, Inc.
15083 North Road
Fenton, MI 48430