Enclosure Air Conditioners
Outdoor Type Cooling Systems for Electrical Panels in Harsh Ambient Conditions
Enclosure air conditioners are industrial cooling units for electrical panels. Moreover, they keep equipment heat under control and protect the safe operating temperature of electronic components. As a result, temperature related faults inside the panel are reduced.
Heavy duty outdoor units are designed for high ambient temperature, dust, vibration, corrosion and demanding site conditions. In addition, the cooling capacity range from 2000 W to 4000 W supports safe operation of the equipment inside the panel.

2000 W – 4000 W Capacity
Cooling capacity between 2000 W and 4000 W is offered according to the panel heat load.
-10°C / +80°C Ambient
A wide operating range supports internal panel temperature control in harsh outdoor conditions.
Vibration and Corrosion Resistance
The design resists vibration and corrosion effects found in industrial site conditions.
What Is an Enclosure Air Conditioner?
An enclosure air conditioner is a dedicated cooling system that cools the air inside an electrical panel. Therefore, it prevents temperature related faults in drives, PLCs, power electronics, relays, contactors, automation equipment and sensitive electronic components.
Heavy duty outdoor units protect panels that operate outside the building. Moreover, they help against solar load, high ambient temperature, dust, humidity, corrosion and vibration. Thanks to the closed loop structure, panel air and outside air never mix during temperature control. You can also review our wider industrial HVAC and ventilation solutions.
Working Principle of Enclosure Air Conditioners
Hot Air Intake
First, the internal fan draws hot air from the panel equipment into the cooling unit.
Refrigeration Cycle
Then, the refrigerant cycle transfers the collected heat to the outside through the condenser line.
Cold Air Supply
Next, cooled air returns into the panel so the electronics stay at a safe temperature.
Condensate and Protection
Finally, the anti-drip design and durable housing support overall panel safety.
Key Technical Features
Panel cooling capacity between 2000 W and 4000 W.
Designed for harsh sites with ambient values from -10°C up to +80°C.
Custom solutions follow panel size, heat load, ambient conditions and mounting details.
Low global warming potential refrigerant options can be applied.
The design helps reduce dripping risk caused by condensation.
An outdoor structure resistant to vibration and corrosion effects.
Enclosure Air Conditioner Technical Data Table
| Technical Feature | Value / Description | Application Note |
|---|---|---|
| Product type | Heavy duty outdoor enclosure air conditioner | Used for electrical panels operating outdoors. |
| Cooling capacity | 2000 W – 4000 W | Capacity must be selected according to the internal heat load. |
| Ambient temperature | -10°C / +80°C | Evaluated for panels exposed to high ambient temperature. |
| Installation type | Outdoor panel mounting | Can be applied to the panel side, door or a custom mounting surface. |
| Refrigerant | Eco friendly, low GWP class refrigerant options | Should be selected per project and regulatory requirements. |
| Condensate control | Anti-drip design | Helps prevent condensate dripping into the panel. |
| Durability | Vibration and corrosion resistant structure | Important for long service life in industrial outdoor conditions. |
| Design approach | Project specific manufacturing on request | Panel size, capacity, mounting direction and control scenario are defined per application. |
Selection Criteria for Enclosure Air Conditioners
| Criterion | Description |
|---|---|
| Internal heat load | The total heat from drives, power supplies, PLCs, relays, contactors and other electronics must be calculated. |
| Ambient temperature | If the panel works under direct sun or near a hot process, capacity must be selected accordingly. |
| Panel IP protection | The protection class and sealing level must be preserved after the unit is installed. |
| Condensation risk | In humid areas, condensate management, drainage and anti-drip details should be checked. |
| Corrosion conditions | In chemical, salty air, outdoor and process steam environments, the housing coating must be chosen specially. |
| Vibration | Vibration resistance matters for panels near machines, compressors, fans or heavy process equipment. |
Advantages of Enclosure Air Conditioners
Application Areas
Frequently Asked Questions
How is the required cooling capacity calculated?
The total heat dissipation of the internal components is added up first. Then, solar load, ambient temperature and target internal temperature are taken into account.
Does a fan work instead of an air conditioner?
A filter fan only helps when the ambient air is cooler than the panel target. Otherwise, an active refrigeration cycle is required.
Is the panel IP class affected?
Closed loop units keep panel air separate from outside air. Therefore, with correct gaskets and cut-out details, the original protection level is maintained.
Application Note
Several criteria must be reviewed together during selection. These include internal heat load, panel volume, ambient temperature and target internal temperature. In addition, IP protection class, outdoor conditions and solar load should be defined. Finally, condensation risk, vibration, corrosion level and the mounting surface are evaluated.
Get Technical Support for Enclosure Air Conditioner Selection
Selection should follow the internal heat load, ambient temperature, panel size, IP class, mounting position and site conditions. Therefore, every parameter is reviewed together before a unit is proposed.
You can request a project based technical evaluation for outdoor electrical panels, automation panels, drive panels and demanding site applications.


