Rockwell Automation 1512B MV Controllers, 200/400A Two-High Cabinet, Standard and Arc-Resistant Enclosure - Manual (Page 82)

74 Rockwell Automation Publication 1500-UM055G-EN-P - May 2013
Appendix A ArcShield Unit Information
Figure 71 - Plenum Exit Left with Extensions to Internal Controlled Access Area (Top View)
Figure 72 - Plenum Exit Left with Extension(s) to Internal Controlled Access Area (Front View)
Minimum H = 3.5 m (138 inches)
Minimum L = 1.2 m (47 inches)
Minimum Volume of space required for safe pressure relief: X * Y * H = 11 m
3
(390 cubic feet)
X
L
Y
Personnel
Access Barrier
H
L
Personnel
Access Barrier