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IP ratingsUpdated 18 Sept 2026

Can a ventilation system be fitted in an enclosure to prevent condensation?

Short answer

Yes. Our Air Technology system is integrated as standard in our AK small distribution series, where it has proven highly effective at preventing condensation forming inside the enclosure. The ventilation elements let air flow through the enclosure and constantly equalise pressure between inside and outside, while their shape prevents water and foreign bodies entering, so IP65 protection is maintained even with permanent air exchange. If you are not using an AK enclosure, the BEL Air ventilation element is available as an accessory for retrofitting into other enclosures or existing installations.

Yes. We have developed an innovative Air Technology system for exactly this purpose. It is integrated as standard in our AK small distribution series, where it has proven highly effective at preventing condensation from forming inside the enclosure.

Condensation and heat build-up can be real issues inside enclosures, especially where temperature fluctuations cause moisture to form. Over time, this can affect performance and shorten the life of the electrical components inside.

The clever part is the design of the ventilation elements. They allow air to flow through the enclosure and constantly equalise pressure between the inside and the outside. At the same time, their shape prevents water and foreign bodies from entering. This means that even with permanent air exchange, IP65 protection is maintained.

Even if you are not using an AK enclosure, the BEL Air ventilation element is also available as an accessory for retrofitting into other enclosures or existing installations. So whether you are specifying a new installation or upgrading an existing enclosure, there is a practical solution available to help manage condensation and temperature without compromising ingress protection.

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