How do I choose the correct IP rating for my enclosure?

Getting the IP rating right matters as much as the enclosure itself — under-protecting risks damage or unsafe conditions, while over-specifying adds unnecessary cost.

IP ratings come from the IEC 60529 standard and use two digits: the first covers protection against solids (from no protection up to fully dust-tight), and the second covers protection against liquids (from no protection up to resistance against powerful, high-temperature jets).

The right rating depends on the installation environment — how dusty the area is, how exposed to contact or traffic it will be, and whether it’s likely to face water droplets, splashes, jets, or full submersion. Indoor locations with normal humidity typically need only modest liquid protection, while outdoor or wash-down environments call for a much higher spec, paired with correctly rated cable glands to preserve the enclosure’s protection level once fitted.

Enclosures are independently tested and certified to confirm they meet their stated rating, including options built for long-term underwater use at depth.

Finally, remember that IP ratings say nothing about impact (IK rating), UV stability or temperature range — check those separately for outdoor and industrial installations.