Doncaster – March 2, 2026 – The new rooftop air-conditioning system delivers up to 12 kilowatts of cooling power. It is suitable for electric vehicles with a 400-volt DC power supply, like minibuses, light commercial vehicles and ambulances. Thanks to its intelligent variable compressor control, it is very efficient and quiet.

The device has been specially developed for light commercial vehicles with electric drives and operates with voltages between 250 and 460 volts DC. The maximum power consumption at 350 volts is 7.5 amps. Thanks to its high cooling capacity, it reliably ensures pleasant interior temperatures even in hot outside conditions and with a full load.

Measuring 1,605 x 1,290 x 300 millimeters, the air conditioning system is very compact in design despite its high performance and weighs only around 80 kilograms. It uses R1234yf as a refrigerant, which contributes to the system's environmental friendliness thanks to its low global warming potential (GWP). The system is delivered pre-filled.

Cool Top 120-e cools the vehicle, both when stationary and while driving. Once the target temperature has been reached, the variable speed control of the compressor automatically adjusts the output to the cooling demand. The system then operates at partial load, making it very quiet. A fresh-air function provides additional comfort in the vehicle when required.

The roof-mounted system can be integrated into existing vehicle systems via CAN bus or controlled via an optional Webasto control unit. Thanks to its plug-and-play design, installation and commissioning are very quick and easy.

The housing of the rooftop air-conditioning system can be painted in the colour of the vehicle. Air outlets and ducts can be individually specified.

Webasto expands its portfolio with PTC air heaters for electric vans

If the warm air from the vehicle heater, which enters the interior or an electric van via the dashboard, is not sufficient for the rear of the vehicle, additional heaters are required. These are connected to the vehicle's electric Power Take Off (ePTO) to draw their power from the high-voltage drive battery with provision for low-voltage supply via the vehicles 12v/24v electrical system dependant on vehicle platform.

Webasto uses PTC heating technology for its new “Air Flow” air heaters. The “Air Flow” modules can be combined as desired or installed and controlled individually in the interior. They convert 100 percent of the electricity into heating energy.

PTC stands for “Positive Temperature Coefficient” and refers to an electric heating element whose resistance increases as the temperature rises. As it gets hotter, less current flows, causing it to regulate itself and prevent overheating. These heating elements are very safe, efficient, and durable.

One module of the new Webasto heater measures 200 x 155 x 150 millimeters (L x W x H) and delivers up to 700 watts of heating power. In addition, there are pre-assembled systems consisting of two or three modules, which provide up to 2,100 watts of system power. However, individual modules can also be installed independently in separate areas of the vehicle. This is particularly advantageous for electric vehicles with limited installation space or where different temperature zones are desired.

Various manual and digital controls are available for operation. The elements can also be integrated into existing vehicle systems via an optional CAN and LIN interface. Operation via app using Bluetooth is in preparation and can be retrofitted later if required. Depending on the control option selected, various heating programs and timer options with individual settings are available.

The heating elements are available in versions for 12-volt DC and 230-volt AC power supplies.

About Webasto

As a global innovative systems partner to the mobility industry, Webasto is one of the 100 largest suppliers to the automotive sector worldwide. In development, manufacturing and sales, the company focuses on roof systems on the one hand and on vehicle electrification on the other hand. The product range includes openable and fixed roofs, electric high-voltage heaters and batteries, as well as thermo management solutions. Among the customers of Webasto are manufacturers of passenger cars, commercial vehicles, and boats, as well as dealers and end customers. In 2024, according to preliminary figures, the Group generated sales of around 4.3 billion euros and employed around 15,300 people at more than 50 locations. The headquarters of the company, which was founded in 1901, is located in Stockdorf near Munich (Germany). For more information, please visit www.webasto.com

Contact for the media

Webasto Group

Gisselle Bautista

Marketing Manager

Phone: +34 (91) 626-8623

E-mail: gisselle.bautista@webasto.com