Publication 1783-UM002C-EN-P - April 2009 23
Chapter 2
WARNING
This equipment is intended to be grounded to comply with emission and immunity requirements. Ensure
that the switch functional ground lug is connected to earth ground during normal use.
When used in a Class I, Division 2, hazardous location, this equipment must be mounted in a suitable
enclosure with proper wiring method, for all power, input and output wiring, that complies with the
governing electrical codes and in accordance with the authority having jurisdiction over Class I, Division 2
installations.
Use twisted-pair supply wires suitable for 30 °C (86 °F) above surrounding ambient temperature outside
the enclosure.
This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category
II applications (as defined in IEC publication 60664-1), and at altitudes up to 2000 m (6,561.68 ft) without
derating.
Installation of the equipment must comply with local and national electrical codes.
To prevent airflow restriction, allow clearance around the ventilation openings to be at least 105 mm (4.13
in.).
ATTENTION
This equipment is only suitable for use in Class I, Division 2,
Groups A, B, C, D, or non hazardous locations.
Connect the unit only to a Class 2 DC power source.
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