This comparison is only approximate, and it is the responsibility of the user to verify the enclosure rating necessary for the given application.
IP Ratings (Ingress Protection)
Rating for Equipment and Enclosures
A three-digit number established by the International Electrotechnical Commission, is used to provide an IP Rating to a piece of electronic equipment or to an enclosure for electronic equipment. The IP code indicates the level, or amount of the protection.
The three digits represent three different forms of environmental influence:
The first digit represents protection against ingress of solid objects.
The second digit represents protection against ingress of liquids.
The third digit represents protection against mechanical impact damage.
(*The third digit is often omitted, resulting in a 2-digit IP Rating covering ingress against solid objects and liquids only).
The larger the value of each digit, the greater the protection from that influence. As an example, a product rated as IP573 would be better protected against environmental factors than another similar product that was only rated as IP432.
Protected against solid objects over 50mm e.g. hands, large tools
Protected against vertically falling drops of water or condensation
Protected against 0.225 joule impact (150g @ 15cm)
Protected against solid objects over 12mm e.g. hands, large tools
Protected against direct sprays of water up to 15° from vertical
Protected against 0.375 joule impact (250g @ 15cm)
Protected against solid objects over 2.5mm e.g. wire, small tools
Protected against direct sprays of water up to 60° from vertical
Protected against 0.5 joule impact (250g @ 20cm)
Protected against solid objects over 1.0mm e.g. wires
Protected against water sprayed from any direction. Limited ingress permitted
Limited protection against dust ingress (no harmful deposit)
Protected against low pressure water jets from any direction. Limited ingress permitted
Protected against 2.0 joule impact (500g @ 40cm)
Totally protected against dust ingress
Protected against high pressure water jets from any direction. Limited ingress permitted (Shipdeck)
Protected against the effects of immersion between 15cm and 1M.
Protected against 6.0 joule impact (1.5Kg @ 40cm)
Protected against long periods of immersion under pressure.
Protected against 20 joule impact (5Kg @ 40Protected against 0.225 joule impact (150g @ 15cm)
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