Phoenix Contact 1708 M12 POE, User Manual, Page: 16 / 34

FL SWITCH 1708 M12 POE
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PHOENIX CONTACT 105648_en_01
2.3.6 Grounding
All Factoryline devices must be grounded so that any possible interference is shielded from
the data telegram and discharged to ground potential. A conductor of at least 2.5 mm² must
be used for grounding. The functional earth ground connection must be established directly
via the housing. Possible connection points are via the fixing points or by mounting on an
grounded metal surface.
Grounding protects people and machines against hazardous voltages. To avoid these
dangers, as far as possible, correct grounding, taking the local conditions into account, is
vital.