Siemens SIMATIC ET 200iSP Operating Instructions Manual page 87

Use the following cable glands:
● Power supply and PROFIBUS RS 485-IS: Cable gland with manufacturer's certification for
zone 2.
● Inputs and outputs Ex i: Degree of protection Ex i.
Figure 4-3
Enclosure for the ET 200iSP in Zone 22
The ET 200iSP must be installed in a dust-protected enclosure with degree of protection IP
5x (according to directive 94/9/EC for category 3D). Further requirements (surface
temperature, for example) can be found in the certification document for the enclosure. Refer
to "Order Numbers" appendix.
Remove dust deposits from the enclosure and its immediate environment at regular intervals;
in other words, always install the enclosure in a location with easy access for cleaning.
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
Enclosure for the ET 200iSP in Zone 2
Installing
4.1 Installation rules
87