Moisture protection / IP protection

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Moisture protection / IP protection
For most fans, protection against moisture or splash water can be provided, either in the form of a coating, or as a full encapsulation.

IP protection types

The letters IP stand for International Protection or Ingress Protection and are supplemented by max. 4 additional digits:

1st digit: Contact protection / foreign body protection
2nd digit: Water protection
3rd digit: Additional touch protection
4th digit: Supplementary letters

(the 3rd and 4th digits do not necessarily have to be indicated)

If the 1st or 2nd digit is not significant, it is usually replaced by an “X”.

First code number Protection against ingress of foreign bodies Second code number Protection against water
0 not protected 0 not protected
1 Protection against foreign bodies with a diameter of >50 mm 1 Protection against vertically dripping water
2 Protection against foreign bodies with a diameter of >12.5 mm 2 Protection against dripping water, max. 15° from the side
3 Protection against foreign bodies with a diameter of >2.5 mm 3 Protection against spray water, max. 60° from the side
4 Protection against foreign bodies with a diameter of >1 mm 4 Protection against splash water
5 Dust protected 5 Protection against water jets
6 Dust-tight 6 Protection against strong jets of water
7 Protection against temporary immersion
8 Protection against permanent immersion (another digit indicates the depth of immersion in metres, e.g. IP68-3 would be 3m deep).
9K Protection against intensive water jets, e.g. high-pressure cleaners