Environment and enclosure – Rockwell Automation 1756-EN2T ControlLogix EtherNet/IP Module Installation Instructions User Manual
Page 4
 
4 ControlLogix EtherNet/IP Module
Rockwell Automation Publication 1756-IN603C-EN-P - April 2010
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:
•
1770-4.1
, for additional installation
requirements.
•
NEMA Standard 250 and IEC 60529, as applicable, for 
explanations of the degrees of protection provided by different 
types of enclosure.