IP Code

The IP Code (or International Protection Rating, sometimes also interpreted as Ingress Protection Rating) consists of letters IP followed by two digits and an optional letter.

First Digit: Solids

The first digit indicates the degree that persons are protected against contact with live parts and the degree that equipment is protected against the ingress of solid foreign objects.

First Digit Protection Description 
 0Not protectedNo protection against contact and ingress of objects
 1Objects greater than 50mmAny large surface of the body, such as the back of the hand but no protection against

deliberate access

 2Objects greater than 12.5mmFingers or similar objects
 3Objects greater than 2.5mmTools, thick wires etc
 4Objects greater than 1.0mmMost wires, screws etc
 5Dust protectedIngress of dust is not entirely prevented but it must not enter in sufficient quantity to

interfere with satisfactory operation of the equipment

6Dust tightNo ingress of dust

Second Digit: Liquids

The second digit indicates the degree of protection of the equipment inside the enclosure against the harmful ingress of water.

Second Digit ProtectionDescription
 0Not protectedNot protection against ingress of water
 1Vertically dripping waterDripping water (vertically falling drops) shall have no harmful effect
 2Dripping water tilted to 15°Vertically dripping water shall have no harmful effect when the enclosure is tilted at

an angle up to 15° from its normal position

 3Spraying waterWater falling as a spray at any angle up to 60° from the vertical shall have no harmful

effect

 4Splashing waterWater splashing against the enclosure from any direction shall have no harmful effect
 5Water jetsWater projected by a nozzle (6.3mm) against enclosure from any direction shall

have no harmful effects

 6Powerful water jetsWater projected in powerful jets (12.5mm nozzle) against the enclosure from any

direction shall have no harmful effects

7Immersion up to 1mIngress 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 1m of

submersion)

8Immersion beyond 1m The equipment is suitable for continuous immersion in water under conditions which

shall be specified by the manufacture. Normally this will mean that the equipment is

hermetically sealed. However with certain types of equipment it can mean that water

can enter but only in such a manner that it produces no harmful effects.

 

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