Assembly and disassembly
SCALANCE MUM856-1
30
Operating Instructions, 08/2021, C79000-G8976-C628-02
WARNING
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.
WARNING
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
WARNING
The device is intended for indoor use only.
WARNING
EXPLOSION HAZARD
Replacing components may impair suitability for Class 1, Division 2 or Zone 2.
WARNING
The equipment shall only be used in an area of not more than pollution degree 2, as defined
in 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:
WARNING
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 3836.8.