| Protection against solid objects |
|---|
| 1st digit | Description | Definition |
| 0 | No protection | No special protection |
| 1 | Protection against solid objects larger than 50mm | Any extended part of body, such as the hand (the protection does not include intentional access). Solid objects with a diameter larger than 50mm. |
| 2 | Protection against solid objects larger than 12mm | Fingers or similar objects with a maximum length of 80mm. Solid objects with a diameter larger than 12mm. |
| 3 | Protection against solid objects larger than 2.5mm | Tools, wires and similar with a maximum diameter or thickness of 2.5mm. Solid objects with a diameter larger than 2.5mm |
| 4 | Protection against solid objects larger than 1.0mm | Wires or strips with a maximum thickness of 1.0mm. Solid objects with a diameter larger than 1.0mm |
| 5 | Protection against dust | Entering of dust is not completely prevented, but dust does not enter in such a quantity to disrupt the normal operation of the device. |
| 6 | Total protection against dust | No dust entering is possible. |
| Protection against liquids |
|---|
| 2nd digit | Description | Definition |
| 0 | No protection | No special protection |
| 1 | Protection against drops of water | Vertical drops of falling water will not have any damaging effect |
| 2 | Protection against drops of water when tilted up to 15° | Vertical drops of falling water will not have any damaging effect, when the device is tilted up to 15° from normal position. |
| 3 | Protection against spraying water | Water spray falling at an angle up to 60° from vertical will not have any damaging effect. |
| 4 | Protection against splashing water | Water splashed towards housing from any direction will not have any damaging effect. |
| 5 | Prot against water jets | A water jet from a nozzle from any direction will not have any damaging effect. |
| 6 | Protection against strong sea water | Strong sea water or a powerful water jet from any direction will not have any damaging effect. |
| 7 | Protection against immersion | Entering of water in such a quantity to damage the device must not be possible when the device itself is dropped into water for a limited period at defined pressure conditions. |
| 8 | Protection against continued submersion | The device may be immersed in water for a long duration at the conditions specified by manufacturer. |
