Battery Driven Electric Cooling System | Polar Cab ES


Operators turn off your engines. The new Polar Cab series by Webasto provides engine-off operator comfort by maintaining cool cabin temperatures during wait/load time. Polar Cab ES engine-off air conditioning system effectively keeps cabs cool on-demand under hot, humid and full sun load conditions.

Operators can now turn off their engines and keep comfortable, save fuel, reduce idling and increase productivity with Webasto technology.


Product benefits

  • Cooling capacity 7,000 BTU/h (2kW)
  • Reduces engine hours
  • Saves fuel
  • Maintains cabin temperature
  • Low power consumption
  • Compact 24V variable speed electric compressor
  • Increased productivity

Kit Components

  • Compressor/Condensor unit with evaporator
  • Evaporator ceiling or floor mounted options
  • Refrigerant lines and fittings
  • Mounting hardware
  • Control unit
  • Wiring harnes

Polar Cab ES Images


Technical Specifications

Technical Specifications

Polar Cab ES with Oakland

(Universal Overhead Evaporator)

Polar Cab ES with Osaka

(Universal Floor Mounted Evaporator)

Part Number



Max Air Flow Evaporator Blower 190 cfm (325m3h) 206 cfm (350m3h)
Cooling Capacity 7,000 BTU/h (2kW) 7,000 BTU/h (2kW)

24 VDC

24 VDC
Refrigerant R-134a R-134a

Dimensions (WxDxH) Compressor / Condenser

Dimensions (WxDxH) Evaporator

24.1 x 16.5 x 16.1 in (613 x 419 x 410 mm)

14.6 x 11.1 x 6.2 in (370.5 x 281.4 x 158 mm)

24.1 x 16.5 x 16.1 in (613 x 419 x 410 mm)

13 x 7.9 x 12.6 in (330 x 200.1 x 321 mm)

Weight Compressor / Condenser

Weight Evaporator

84 lbs (38kg)

8 lbs (3.5kg)

84 lbs (38kg)

12 lbs (5.5kg)

*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 ES Product Spec Sheet

Download (PDF, 824 kB)

Our contact

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