Robin Barton


IP Ratings

The European sandard EN 60529 provides a system for classification of the effectiveness of enclosures of electrical equipment against the ingress of foreign bodies and moisture. Ratings are written as the letters "IP" ("Ingress Protection") followed by two or three digits. (A third digit is sometimes used. An "X" is used for one of the digits if there is only one class of protection; i.e. IPX4 which addresses moisture resistance only.)

Enter an IP code into this box to get its description.


1st DigitThe first digit of the IP code indicates the protection offered by the enclosure against the ingress of solid foreign bodies.2nd DigitThe second digit indicates the degree of protection offered by the enclosure against the ingress of moisture.
0No protection0No protection
1Protection from a large part of the body such as a hand (but no protection from deliberate access); from solid objects greater than 50mm in diameter.1Protected against vertically falling drops of water.
2Protection against fingers or other object not greater than 80mm in length and 12mm in diameter.2Protected against direct sprays up to 15° from the vertical.
3Protected against solid objects over 2.5mm.3Protected against direct sprays up to 60° from the vertical.
4Protected against solids objects over 1.0mm.4Protected against sprays from all directions - limited ingress permitted.
5Protected against dust - limited ingress (no harmful deposit).5Protected against low pressure jets of water from all directions - limited ingress permitted.
6Totally protected against dust.6Protection against heavy seas, or powerful jets of water - limited ingress permitted.
7Not Defined7Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minute.
8Not Defined8Protected against long periods of immersion under pressure. Submersion depth and time must be specified by the end user. The requirement must be more onerous than IP67.