Rockwell Automation 1512A MV Controllers, 400A One-High Cabinet, Standard and Arc-Resistant Enclosure - Manual (Page 88)

80 Rockwell Automation Publication 1512A-UM100F-EN-P - May 2013
Appendix B ArcShield Plenum Installation Instructions
Figure 81 - 90° Elbow Section Assembly, Step 5C (Front View)
STEP 6 – Mounting
Extension/Elbow to Plenum
“Line-up” As referred to in STEP 4 – Closing the Front of the Plenum Sections on page 79 ,
the last Plenum at the exhaust side of the line-up has the front duct section
removed. This allows access to fastener holes in order to mount the Extension/
Elbow components (see
Figure 82 ).
Figure 79 - 90° Elbow Section Assembly, Step 5A (Front View) Figure 80 - 90° Elbow Section Assembly, Step 5B (Front View)
36 in. extensions
2-piece 90 °
elbow section
Screen Cover Plate
The Extension components are
attached to the Elbow Section using
5/16-in. Hardware.
Figure 81 illustrates what the
Extension/Elbow Assembly should
resemble when finished.
Screen Cover Plate
36 in. extensions
TIP Use silicone caulking generously to fill any air gaps once the Plenum has been
securely mounted in place.