Rockwell Automation 1512A MV Controllers - 800A One-High Cabinet - Manual (Page 96)

B-14 ArcShield Plenum Installation Instructions
1512A-UM102B-EN-P – June 2013
STEP 7 – Additional Mounting Support
The Extension / Elbow Assembly must have additional mounting
support.
90° Elbow Section: Approximate weight 142 lbs. (64 kg)
36” Extension Assembly: Approximate weight 112 lbs. (51 kg)
Figure B.17 shows an example of how the Extension / Elbow Sections can
be supported by suspension from a high ceiling.
Points A, B & C show where chains or high tension cables
may be connected.
A B
Figure B.17 – Completed Assembly for optional vertical exit Plenum (Right hand exit)
Note: During an arc fault, the plenum will be subjected to a brief high
pressure shock wave. The Extension / Elbow assembly may experience
dynamic loading. It is important to account for dynamic loading when
selecting supporting means and materials.