Connection
6.5 Grounding
SCALANCE W774-1 / W734-1
56 Operating Instructions, 03/2022, C79000-G8976-C325-15
UL approval only for use in buildings
Within the area of authority of the NEC and CEC, the SCALANCE W770/W730 devices
and the antennas connected to them may only be used in a closed building. For this
reason, do not lead antennas into the outdoor area if you need to meet UL
requirements.
Note
Cabinet installation
When installing the SCALANCE W770/W730 in a cabinet, you need to use detached
antennas. A suitable flexible connecting cable for a connection between SCALANCE
770/W730 and a detached antenna are available from SIMATIC NET. You will find
detailed informatio
n in the section Accessories (Page 22).
6.5 Grounding
Grounding with wall mounting
The device is grounded by the securing screw in the unpainted hole (diameter 4.5 mm)
see position ⑧ of the Device description (Page 20).
If the device is mounted on a non-conductive base, a grounding cable must be fitted. The
grounding cable is not supplied with the device. Connect the paint-free surface of the
device to the nearest grounding point using the grounding cable.
Grounding when installing on a DIN rail / S7 standard rail
The device is grounded via the rear of the device.
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