Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 49
Chapter 4
Installing and Removing Plug-in Units
Installing Plug-in Units
For unit installation, refer to CENTERLINE 2100 Motor Control Centers
(MCC) Units with Vertical Operating Handles Installation Instructions,
publication 2100-IN014
, and CENTERLINE 2100 Motor Control Center
(MCC) Units with Horizontal Operating Handles Installation Instructions,
publication 2100-IN060
.
ATTENTION: When installing or removing MCC units, when possible, de-
energize, lockout, and tag-out all sources of power to the MCC. If the MCC
units are installed or removed with power applied to the main power bus,
follow established electrical safety work practices. Refer to the NFPA 70E
Standard for Electrical Safety in the Workplace publication.
R
ATTENTION: Review your company safety lockout and tag-out procedure.
De-energize all units before installing or removing.
ATTENTION: All covers and doors must be in place before applying power to
the MCC. If units are removed, they must be replaced with the appropriate
items such as units, doors, and unit support pans.
ATTENTION: When installing units for CENTERLINE® 2100 Motor Control
Centers with the ArcShield™ rating, you must make sure you are installing a
unit that has the same arc resistance rating as the MCC in which it is being
installed. The arc resistance rating can be found on the ArcShield label on the
vertical wireway door.
Units that are not rated for 100 ms arc duration must not be installed in a
section that is rated for 100 ms arc duration. The arc resistant rating does not
apply if that is done.
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