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FL SWITCH IRT
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PHOENIX CONTACT 8289_en_04
3.5 Grounding
All Factoryline devices must be grounded so that any possible interference is shielded from
the data telegram and discharged to ground potential.
A wire of at least 2.5 mm
2
must be used for grounding. The following requirement applies to
the IP 20 switch: With regard to functional grounding, mount the module on a grounded DIN
rail. The functional ground of the module is grounded when it is snapped onto the DIN rail.
For the IP65 switch, the following requirement must be met: Ensure correct functional
grounding of the device, e.g, connecting the ground conductor via the mounting screw or
installation on a grounded metallic plate.
grounding protects people and machines against hazardous voltages. To avoid these
dangers to the greatest extent possible, correct grounding, taking the local conditions into
account, is vital.