Siemens SCALANCE XR-300M Compact Operating Instructions page 30

Mounting
5.1 Safety notices for installation
When used in hazardous environments corresponding to Class I, Division 2 or Class I, Zone
2, the device must be installed in a cabinet or a suitable enclosure.
Safety notices for use according to ATEX and IECEx
If you use the device under ATEX or IECEx conditions you must also keep to the following
safety notices in addition to the general safety notices for protection against explosion:
To comply with EC Directive 2014/34/EU (ATEX 114) or the conditions of IECEx, this
enclosure or cabinet must meet the requirements of at least IP54 in compliance with EN
60529.
Cable
If the cable or conduit entry point exceeds 70 °C or the branching point of conductors exceeds
80 °C, special precautions must be taken. If the equipment is operated in an air ambient in
excess of 50 °C, only use cables with admitted maximum operating temperature of at least 80
°C.
Further notes
Use only approved components
If you use components and accessories that are not approved for SIMATIC NET devices or
their target systems, this may violate the requirements and regulations for safety and
electromagnetic compatibility.
Only use components approved for the SIMATIC NET devices.
NOTICE
Warming and premature aging of the IE switch due to direct sunlight
Direct sunlight can heat up the device and can lead to premature aging of the IE switch and
its cabling.
Provide suitable shade to protect the IE switch against direct sunlight.
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WARNING
WARNING
WARNING
CAUTION
Compact Operating Instructions, 11/2019, A5E02661171-15
SCALANCE XR-300M