What is IP-Certification?

IP-certification stands for International Protection Rating. It is an indication of the level of protection against damage caused by use in "hostile environments".

IEC 605289

The IP rating is internationally standardized in the IEC 60529 standard. The IP rating has two digits: the first digit indicates the level of protection against the touching and penetration of objects and the second digit indicates the level of protection against moisture. Thus, a device designated IP 54 is dustproof and splash-proof.

Level of protection against contact and penetrating objects

In the position of the x, the second digit represents the level of protection against moisture. Also, the 'x' can mean that the protection against moisture is not important.

IP Protection against Meaning
0x No protection
1x Large objects Protection against accidental, superficial hand touch. Protected against penetration of solid objects larger than 50 mm
2x Average-sized objects Protection against finger touch. Safe to touch only for measuring devices. Protected against penetration by solid objects larger than 12.5 mm.
3x Small objects Protection against contact with a tool. Safe to touch only for measuring devices. Protected against penetration of solid objects larger than 2.5 mm.
4x Pointed objects Protection against contact with a tool. Protected against contact with a wire. Protected against penetration of solid objects larger than 1 mm.
5x Dust protection Safe to touch because the housing is completely sealed. Not completely protected against dust but sufficient enough to not obstruct proper operation
6x Completely dust resistant Safe to touch thanks to a completely sealed enclosure. Complete protection against dust.

Level of protection against moisture

IP IEC Protection against Meaning
0 IP-X0 No protection
1 IP-X1 Dripping water Dripping water (vertically falling drops) shall have no harmful effect on the product when mounted in an upright position onto a turntable and rotated at 1 RPM.
2 IP-X2 Dripping water when tilted up to 15° Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle of 15° from its normal position. A total of four positions are tested within two axes.
3 IP-X3 Spraying water Water falling as a spray at any angle up to 60° from the vertical axis shall have no harmful effect.
4 IP-X4 Splashing water Water splashing against the enclosure from any direction shall have no harmful effect.
5 IP-X5 Water jets Water projected by a nozzle against enclosure from any direction shall have no harmful effects.
6 IP-X6 Powerful water jets Water projected in powerful jets against the enclosure from any direction shall have no harmful effects.
7 IP-X7 Immersion up to 1 meters deep Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 meter (3 ft 3 in) of submersion).
8 IP-X8 Immersion beyond 1 meters deep The equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer.
9 IP-X9 Moistureproof Remains usable at more than 90% humidity or spraying under high pressure

Any questions about IP-certification?