EE15: DEFINITION OF IP PROTECTION DEGREES

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According to IEC 529 / EN 60 529

IP 54

Here “IP” is code letters. First number is protection against solid objects. Second number is protection against liquids.

First NumberDescription
0No protection
1Protected against solid objects; diameter {\displaystyle \geqslant } 50mm
2Protected against solid objects; diameter {\displaystyle \geqslant } 12.5mm
3Protected against solid objects; diameter {\displaystyle \geqslant } 2.5mm
4Protected against solid objects; diameter {\displaystyle \geqslant } 1mm
5Protected against dust (harmless amount permitted)
6Completely protected against dust
Second NumberDescription
0No protection
1Protected against vertically dripping water
2Protected against 15° (angle from the vertical) dripping water
3Protected against 60° (angle from the vertical) sprays of water
4Protected against every direction of sprayed water
5Protected against low pressure water jets from all directions (harmless amount permitted)
6Protected against strong water jets from all directions (harmless amount permitted)
7Temporary protected against immersion in water (water must not penetrate in harmfull quantity at described period)
8Protected against under pressure, long periods of immersion in water
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