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Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Chapter 4
Installing and Removing Plug-in Units
For the CENTERLINE 2100 MCC units with arc-resistant door
latches, you can tilt the top of the unit slightly to the rear to avoid
interference with the top arc latch bracket before removing the unit. If
you do not have enough clearance, you need to loosen the latch bracket
screw (approximately two turns) to remove the unit.
9. Remove the unit from the MCC.
10. Carefully install protective caps or close manual shutters after the unit is
removed.
Automatic shutters close as units are removed.
TIP
For dual-mounted, fusible-feeder disconnect switch units, you need to
remove the bottom arc latch bracket. You can do this by first removing the
unit below the dual disconnect unit.
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.
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.
Latch Bracket
Latch Bracket