Environment and enclosure – Rockwell Automation 1768-L43_L45_L43S_L45S CompactLogix Controllers Installation Instructions User Manual
Page 3
CompactLogix Controllers 3
Publication
1768-IN004D-EN-P - December 2009
Environment and Enclosure
ATTENTION
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), at
altitudes up to 2000 m (6562 ft) without derating.
This equipment is considered Group 1, Class A industrial equipment according to
IEC/CISPR Publication 11. Without appropriate precautions, there may be
difficulties with electromagnetic compatibility in residential and other
environments due to conducted as well as radiated disturbances.
This equipment is supplied as open-type equipment. It must be mounted within
an enclosure that is suitably designed for those specific environmental
conditions that will be present and appropriately designed to prevent personal
injury resulting from accessibility to live parts. The enclosure must have suitable
flame-retardant properties to prevent or minimize the spread of flame, complying
with a flame spread rating of 5VA, V2, V1, V0 (or equivalent) if non-metallic. The
interior of the enclosure must be accessible only by the use of a tool. Subsequent
sections of this publication may contain additional information regarding specific
enclosure type ratings that are required to comply with certain product safety
certifications.
In addition to this publication, see:
•
Industrial Automation Wiring and Grounding Guidelines, Rockwell
Automation publication
, for additional installation
requirements.
•
NEMA Standards 250 and IEC 60529, as applicable, for explanations of
the degrees of protection provided by different types of enclosure.