Siemens SCALANCE MUM853-1 Operating Instructions Manual page 34

Installation and removal
5.1 Safety notices for installation
If the device is installed in a cabinet, the inner temperature of the cabinet corresponds to the
ambient temperature of the device.
Safety notices on use in hazardous areas
General safety notices relating to protection against explosion
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.
EXPLOSION HAZARD
Replacing components may impair suitability for Class 1, Division 2 or Zone 2.
The device may only be operated in an environment of contamination class 1 or 2 (see EN/IEC
60664-1, GB/T 16935.1).
Notes for use in hazardous locations according to ATEX, IECEx, UKEX and CCC Ex
If you use the device under ATEX, IECEx, UKEX or CCC Ex conditions you must also keep to
the following safety instructions in addition to the general safety instructions for protection
against explosion:
To comply with EU Directive 2014/34 EU (ATEX 114), UK-Regulation SI 2016/1107 or the
conditions of IECEx or CCC-Ex, the housing or cabinet must meet the requirements of at least
IP54 (according to EN/IEC 60529, GB/T 4208) in compliance with EN IEC/IEC 60079‑7, GB
3836.3.
34
WARNING
WARNING
WARNING
WARNING
WARNING
Operating Instructions, 03/2023, C79000-G8976-C650-05
SCALANCE MUM853-1