International Protection Marking (IP)
The International Protection Marking (sometimes called Ingress Protection) classifies the degree of protection against solid objects (like body parts, tools and dust grains) and the harmful ingress of water by mechanical casings and electrical enclosures. The IP Code gives users detailed information on the protection of, in our case, mobile devices. The IP Code rating is published by the "International Electrotechnical Commission" (IEC).
The first digit indicates the level of protection of devices' hazardous parts against the ingress of solid foreign objects. The second digit indicates the level of protection that the enclosure provides against harmful ingress of water. If it is not possible to specify a protection rating the digit is replaced with the letter X. Additional letters that can be added after the digits can give more information on further protection.
First IP Digit – Protection from Solids
| Level | Description | For example |
| Protected against solid objects… | ||
| 0 | non-protected | - |
| 1 | > 50 mm | Hand |
| 2 | > 12 mm | Finger |
| 3 | > 2.5 mm | Wire or tool |
| 4 | > 1.0 mm | Wire or screws |
| 5 | Dust protected | - |
| 6 | Dust tight | - |
Second IP Digit – Protection from Liquids
| Level | Description | For example |
| Protected against… | ||
| 0 | Non-protected | - |
| 1 | Vertically dripping water | Condensation |
| 2 | Dripping water tilted up to 15° | Rain |
| 3 | Spraying water at an angle of up to 60° | Heavy rain |
| 4 | Splashing water from any direction | - |
| 5 | Jets of water from any direction | - |
| 6 | Heavy seas or powerful jets of water | - |
| 7 | Harmful ingress of water when immersed between a depth of 150mm to 1 meter | - |
| 8 | Continuous immersion in water | - |