Installation and removal
5.1 Safety notices for installation
SCALANCE W778-1 / W738-1
Operating Instructions, 03/2022, C79000-G8976-C450-07
39
WARNING
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:
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.
Safety notices when using according to FM
If you use the device under FM conditions you must also keep to the following safety
notices in addition to the general safety notices for protection against explosion:
WARNING
The equipment is intended to be installed within an enclosure/control cabinet. The
inner service temperature of the enclosure/control cabinet corresponds to the ambient
temperature of the module. Use installation wiring connections with admitted maximum
operating temperature of at least 10 °C higher than maximum ambient temperature.
WARNING
Wall mounting is only permitted if the requirements for the housing, the installation
regulations, the clearance and separating regulations for the control cabinets or
housings are adhered to. The control cabinet cover or housing must be secured so that
it can only be opened with a tool. An appropriate strain-relief assembly for the cable
must be used.
WARNING
Wall mounting outside of the control cabinet or housing does not fulfill the
requirements of the FM approval.
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