Installation and removal4.1 Safety notices for installationSCALANCE S61534 Operating Instructions, 10/2022, C79000-G8976-C389-07Safety notices on use in hazardous areasGeneral safety notices relating to protection against explosionWARNINGEXPLOSION HAZARDReplacing components may impair suitability for Class 1, Division 2 or Zone 2.WARNINGWhen used in hazardous environments corresponding to Class I, Division 2 or Class I, Zone2, the device must be installed in a cabinet or a suitable enclosure.WARNINGThe device may only be operated in an environment of contamination class 1 or 2 (seeEN/IEC 60664-1, GB/T 16935.1).Notes for use in hazardous locations according to ATEX, IECEx, UKEX and CCC ExIf you use the device under ATEX, IECEx, UKEX or CCC Ex conditions you must also keep to thefollowing safety instructions in addition to the general safety instructions for protectionagainst explosion:WARNINGTo comply with EU Directive 2014/34 EU (ATEX 114), UK-Regulation SI 2016/1107 or theconditions of IECEx or CCC-Ex, the housing or cabinet must meet the requirements of atleast IP54 (according to EN/IEC 60529, GB/T 4208) in compliance with EN IEC/IEC 60079-7,GB 3836.8.Safety notices when using according to FMIf you use the device under FM conditions you must also keep to the following safety noticesin addition to the general safety notices for protection against explosion:WARNINGEXPLOSION HAZARDThe equipment is intended to be installed within an enclosure/control cabinet. The innerservice temperature of the enclosure/control cabinet corresponds to the ambienttemperature of the module. Use cables with a maximum permitted operating temperatureof at least 20 °C higher than the maximum ambient temperature.