Appendix; General Operating Conditions - Beckhoff CU2608 Documentation

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Appendix

4.1

General operating conditions

Protection classes according to IP code
The levels of protection are defined and divided into different classes in the IEC 60529 standard (DIN EN
60529). The designation follows the scheme below.
1st digit: Protec- Meaning
tion against
ingress of dust and
access to haz-
ardous parts
0 Non-protected
1 Protection against access to hazardous parts with back of hand. Protection against
ingress of solid foreign objects = 50 mm diameter
2 Protection against access to hazardous parts with a finger. Protection against ingress
of solid foreign objects = 12.5 mm diameter
3 Protection against access to hazardous parts with a tool. Protection against ingress of
solid foreign objects = 2.5 mm diameter
4 Protection against access to hazardous parts with a wire. Protection against ingress of
solid foreign objects = 1 mm diameter
5 Protection against access to hazardous parts with a wire. Protection against ingress of
dust. Ingress of dust is not prevented completely, although the quantity of dust able to
penetrate is limited to such an extent that the proper function of the device and safety
are not impaired
6 Protection against access to hazardous parts with a wire. Dust-proof. No ingress of
dust
2nd digit: Protec- Meaning
tion against
ingress of water*
0 Non-protected
1 Protection against dripping water
2 Protection against dripping water (housing tilted up to 15°)
3 Protection against spraying. Water sprayed at an angle of up to 60° from vertical must
not have any adverse effect
4 Protection against splashing. Water splashing against the housing from any direction
must not have any adverse effects
5 Protection against jetting.
6 Protection against powerful jetting.
7 Protection against the effects of temporary immersion. The quantity of water being
able to penetrate if the housing is submerged in water for 30 minutes at a depth of 1 m
must not have any adverse effects
*) These protection classes only define protection against ingress of water.
Chemical resistance
The resistance refers to the fieldbus box housing and the metal components used.
CU2608 Version: 2.0.0
Appendix
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