The two digits represent two different forms of environmental influence:
In the following chart the larger the value of each digit, the greater the protection from that influence. As an example, a product rated as IP57 would be better protected against environmental factors than another similar product that was only rated as IP43.
|IP||First Digit: Protection Against Ingress of Solid Objects||Second Digit: Protection Against Ingress of Liquids|
|0||No protection||No protection|
|1||Protected against solid objects over 50 mm, e.g. hands, large tools.||Protected against vertically falling drops of water.|
|2||Protected against solid objects over 12 mm, e.g. hands, large tools.||Protected against direct sprays of water up to 15° from vertical.|
|3||Protected against solid objects over 2.5 mm, e.g. wire, small tools.||Protected against direct sprays of water up to 60 ° from vertical.|
|4||Protected against solid objects over 1.0 mm, e.g. wires.||Protected against water sprayed from any direction. Limited ingress permitted.|
|5||Limited protection against dust ingress (no harmful deposit)||Protected against low-pressure water jets from any direction. Limited ingress permitted.|
|6||Totally protected against dust ingress.||Protected against high-pressure water jets from any direction. Limited ingress permitted.|
|7||Protected against immersion between 15 cm and 1 m.|
|8||Protected against long periods of immersion under pressure.|
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