Environment and enclosure – Rockwell Automation 1756-DHRIOXT ControlLogix-XT Data Highway Plus-Remote I/O Communication Interface Module User Manual
Page 4
4 ControlLogix-XT Data Highway Plus-Remote I/O Interface Module
Publication
1756-IN638A-EN-P - March 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
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 11. Without appropriate precautions, there may
be difficulties with electromagnetic compatibility in residential and other
environments due to conducted and 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, for
additional installation requirements, Allen-Bradley publication
.
•
NEMA Standards 250 and IEC 60529, as applicable, for
explanations of the degrees of protection provided by different
types of enclosure.