Installation and removal
5.2 Wall mounting
SCALANCE W774-1 / W734-1
Operating Instructions, 03/2022, C79000-G8976-C325-15
39
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 cables with a maximum permitted operating
temperature of at least 20 °C higher than the 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.
Note
You must not install the device on a wall in hazardous areas.
5.2 Wall mounting
Drilling template
The location of the holes for fitting the mounting plate of the device is shown in the
following figure:
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