Chimney information, Chimney exhaust considerations, Additional notes – Rockwell Automation 1512B MV Controllers, 200/400A Two-High Cabinet, Standard and Arc-Resistant Enclosure User Manual
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Rockwell Automation Publication 1500-UM055G-EN-P - May 2013
Appendix A
ArcShield Unit Information
Chimney Information
A chimney can be provided for each unit, and is to be field mounted on top of the
unit structure. The purpose of the chimney is to direct the hazardous flames and
gases away from the top of the resistant enclosure. The chimney is secured to the
top of each unit structure. Refer to
for chimney installation
instructions.
Each ArcShield line-up includes a chimney exhaust section that extends vertically
directly above the enclosure.
Chimney Exhaust Considerations
1. From the outlet of the chimney, there needs to be a minimum distance of
1.7 m (67 inches) from the top of the chimney to the ceiling, and 1 m
(39 inches) on each side.
2. No obstructions (eg. Piping) can be in the path of the exhaust within this
2 m (78 inches) height requirement.
Plan the location where the chimney will exhaust. Ensure that:
• There is no access to personnel while equipment is energized.
• Area is free of flammable material or vapors.
• Ensure that adequate space is provided around the chimney exhaust as