Industrial Communication Guide

2. Kennziffer Beschreibung

Degree of protection from liquid ingress The protection classes for liquid ingress range from 0 to 9. The low- est protection class 1 prevents ingress of vertically falling drops of water, such as condensation water in a piece of equipment. The best protection class is 9: this even provides protection from the jet of a high-pressure cleaner, as used in industrial cleaning process- es, for example.

0

No protection

1

Protected from dripping water

2

Protected from dripping water if the casing is titled by up to 15°

3

Protected from spray water

If the simultaneous ingress of solid particles is not relevant, the above examples might be specified as IP X1 and IP X9.

4

Protected from splash water

5

Protected from light water jets

6

Protected from powerful water jets

7

Protected from water ingress when temporarily immersed

t < < ∞

8

Protected from water ingress when continiously immersed

t = ∞

9

Protected from high-pressure water (incl. high water jet temperatures)

p

10