User Documentation

Planning
2053260000/05/2015
37
IP protection class
Electrical devices that are intended for use in industrial environments are
subjected to inuences other than household appliances.
The following table shows the protection classes with the associated limit values.
The protection classes are dened in the IP standard, DIN EN 60529: protection
degree provided by housing (IP code).
Table 2.1: Protection degrees against solid foreign matter
Code number Term - explanation
0 Notprotected
1 Protected against solid foreign matter, 50 mm diameter and larger
2
Protected against solid foreign matter, 12.5 mm diameter and larger
Example:theairslotsinaPCpower-supply-unithousing.
3 Protected against solid foreign matter, 2.5 mm diameter
4 Protected against solid foreign matter, 1 mm and larger
5
Dust-protected:
Penetrationofdustisnotcompletelyprevented,butdustmaynotpenetratetosuchanextentthattheopera-
tion of the device or the safety is impaired.
6
Dust-tight:
Nopenetrationofdustatapressureofunder20mbarinthehousing
Table 2.2: Protection degrees against water
2. Code number Term - explanation
0 Noprotection
1 Protectedagainstdrippingwater:verticallyfallingdropsmaynothaveanydamagingeffects.
2 Protectionagainstdrippingwater,whenthehousingisinclinedbyupto15°
3
Protectedagainstspray-water:waterthatissprayedatanangleofupto60°onbothsidesofthevertical
may not have any damaging effects.
4
Protectionagainstsplashingwater:
Water that is splashed from every direction against the housing may not have any damaging effects.
5
Protectionagainstwaterjets:
Water that is directed as jets from every direction against the housing may not have any damaging effects.
Note:correspondstoapprox.12.5litres/minute(gardenhose)Testperiodapprox.5minutes(allinformationsubject
tocorrection).
6
Protectionagainststrongwaterjets:
Water that is directed from every direction as strong jets against the housing may not have any damaging
effects.
7 Protectionagainsttheeffectsofbeingtemporarilysubmersedinwater
8
Protectedagainsttheeffectsofbeingsubmersedinwaterforalongperiodoftime.Anadditionalspecied
number indicates the submersion depth.