FLEX I/O DC Input, Output, and Input/Output Analog Modules     3
Publication 1794-IN106D-EN-E - January 2014
Environment and Enclosure
Prevent Electrostatic Discharge 
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 meters without derating.
This equipment is considered Group 1, Class A industrial equipment according 
to IEC/CISPR Publication 11. Without appropriate precautions, there may be 
potential difficulties ensuring electromagnetic compatibility in other 
environments due to conducted as well as radiated disturbance.
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 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.
See NEMA Standards publication 250 and IEC publication 60529, as 
applicable, for explanations of the degrees of protection provided by different 
types of enclosure. Also, see the appropriate sections in this publication, as 
well as Industrial Automation Wiring and Grounding Guidelines, Allen-Bradley 
publication 1770-IN041
, for additional installation requirements pertaining to 
this equipment.
ATTENTION: This equipment is sensitive to electrostatic discharge, which can 
cause internal damage and affect normal operation. Follow these guidelines 
when you handle this equipment:
• Touch a grounded object to discharge potential static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component boards.
• Do not touch circuit components inside the equipment.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging when not in use.