Engineering Guide CDA3000
A-41
Appendix A Formula bank
DE
EN
1
2
3
4
5
6
7
A
For water protection
First
code
digit
Scope of protection
Designation
Explanation
0
No protection
No special protection
1
Protection
against vertically
falling dripping
water
Water dripping vertically must not have any damaging effect.
2
Protection
against dripping
water with hous-
ing at a tilt of up
to 15°
Water dripping vertically must not have any damaging effect
when the housing is at a tilt angle of 15° to either side of the
vertical.
3
Protection
against splash-
ing water
Water splashing at any angle up to 60° on either side of the
vertical must not have any damaging effect.
4
Protection
against splash-
ing water
Water splashing onto the housing from any direction must not
have any damaging effect.
5
Protection
against water jet
spray
A water jet from a nozzle directed from any direction onto the
equipment must not have any damaging effect.
Table 1.4
For water protection
Examples of protection figures:
IP 4 4
Code letters
First code digit
Second code digit