Rockwell Automation 1512A MV Controllers - 800A One-High Cabinet - Manual (Page 80)

A-6 ArcShield Unit Information
1512A-UM102B-EN-P – June 2013
X *Y* H = 390 cubic feet [11 m 3 ]
H1
H H
Figure A.5 - Chimney Exhaust Space Requirements
Minimum H1: 1.7m (67”)
Minimum H: 1m (37”)