Do Not Pass. IP ratings explained

IP Rating Explained

The IP rating or ingress protection code is defined by the International Electrotechnical Commission (IEC). It classifies and provides a guideline to the degree of protection provided by casings and enclosures against intrusion of dust and contact with water.

IP

The first digit indicates the level of protection that the enclosure provides against access to solid parts.
The second digit indicates the level of protection that the enclosure provides against harmful ingress of water.
First Number Rating
XMeans there is no data available to specify a IP rating with regard to this criterion.
0IP00No protection against contact and ingress of objects.
1Any large surface of the body, such as the back of a hand, but no protection against deliberate contact with a body part. Protection from solid objects over 50mm in diameter.
2Fingers or similar objects. Protection from solid objects over 12.5mm in diameter.
3Tools, thick wires, etc. Protection from solid objects over 2.5mm in diameter.
4Most wires, slender screws, large ants etc. Protection from solid objects over 1mm in diameter.
5Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the safe operation of the equipment.
6No ingress of dust; complete protection against contact (dust-tight).
Second Number Rating
XMeans there is no data available to specify a IP rating with regard to this criterion.
0IP00No protection against ingress of liquid.
1Dripping water (vertically falling drops) shall have no unsafe effect on the enclosure.
2Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle of 15° from its normal position.
3Water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect.
4Water splashing against the enclosure from any direction shall have no harmful effect
5Water projected by a nozzle (6.3 mm) against enclosure from any direction shall have no harmful effects.
6Water projected in powerful jets (12.5 mm) against the enclosure from any direction shall have no harmful effects.
7Ingress 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).
8The equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer.
9KIPX9KProtected against close-range high pressure, high-temperature spray downs.

Additional letter (optional)

For the protection of personnel against access to hazardous parts with:

LetterMeaning
ABack of hand
BFinger
CTool
DWire

Supplementary letter (optional)

For the protection of equipment specific to:

LetterMeaning
FOil resistant
HHigh voltage apparatus
MMotion during water test
SStationary during water test
WWeather conditions

For additional information and further reading see wikipedia

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