Term:   IP-Protection

Explanation:
The IP code consists of a two-digit number, which indicates the respective degree of protection.

The first digit specifies the protection from the penetration of foreign objects, the second digit the protection from water penetration with harmful effects.

I. index number: protection from the penetration of foreign objects 0 non-protected

1 ≥ 50 mm diameter (back of hand)
2 ≥ 12.5 mm diameter (finger)
3 ≥ 2.5 mm diameter (tool)
4 ≥ 1 mm diameter (wire)
5 dust-protected
6 dust-tight

II. index number: protection from water penetration with harmful effects

0 non-protected
1 vertically dripping
2 dripping (15° tilted)
3 spraying
4 splashing
5 jetting
6 powerful jetting
7 temporary immersion (1 m, 30 min)
8 continous immersion 9K: water at high pressure / steam jet cleaning (Water that is addressed against the housing from any direction under increased pressure, should have no harmful effects.