PROFINET Installation Guideline for Cabling and Assembly

Terms and definitions
IP protection types by housing (IP-Code)
The IP identifier according to IEC 60529 designates the protection class provided by
the housings of electrical devices, e.g. IP 67.
The first figure indicates the protection of persons against the intrusion of dangerous
parts and protection of internal parts against the intrusion of solid foreign material.
0 – No protection
1 – Protection against solid bodies >50 mm, e.g. hands
2 – Protection against solid bodies >12 mm, e.g. fingers
3 – Protection against solid bodies >2.5 mm, e.g. tools and wires
4 – Protection against solid bodies >1 mm, e.g. tools, wires and thin wires
5 – Protection against dust (limited intrusion permitted)
6 – Protection against dust (total)
The second figure indicates the protection of the internal components against the
dangerous intrusion of water.
0 – No protection
1 – Protection against vertically falling water (condensate)
2 – Protection against splash water deviating from the vertical by 15°
3 – Protection against splash water deviating from the vertical by 60°
4 – Protection against splash water from all directions
5 – Protection against low pressure water jet from all directions (limited intrusion
permitted)
6 – Protection against high pressure water jet from any direction (limited intrusion
permitted), e.g. for use on the deck of ships
7 – Protection against water up to an immersion depth between 15 cm and 100 cm
8 – Protection against water if immersed under pressure
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