Control Panel Building - IP Enclosure Protection Ratings

IP ratings use a 2 digit system to designate the environment rating of the enclosure.  The first digit specifies the protection from solids and the second digit specifies the protection from water.

IP.. First digit:
Ingress of solid objects.
Second digit:
Ingress of liquids.
0 No protection. No protection.
1 Protected against solid objects over 50mm e.g. hands, large tools.
Protected against vertically falling drops of water or condensation.
2 Protected against solid objects over 12.5mm e.g. hands, large tools.
Protected against falling drops of water, if the case is disposed up to 15 from vertical.
3 Protected against solid objects over 2.5mm e.g. wire, small tools.
Protected against sprays of water from any direction, even if the case is disposed up to 60from vertical.
4 Protected against solid objects over 1.0mm e.g. wires.
Protected against splash water from any direction.
5 Limited protection against dust ingress.
(no harmful deposit)
Protected against low pressure water jets from any direction. Limited ingress permitted.
6 Totally protected against dust ingress.
Protected against high pressure water jets from any direction. Limited ingress permitted.
7 N/A
Protected against short periods of immersion in water.
8 N/A
Protected against long, durable periods of immersion in water.
9k N/A
Protected against close-range high pressure, high temperature spray downs.

If you are looking for a comparison of NEMA and IP ratings, see our Control Panel Environmental Ratings NEMA and IP lesson.

Next Steps

Go to the UL 508A Control Panel Lesson series to select your next lesson.  There are also many other Lesson Series on PLC Programming and Industrial Automation.

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