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Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Chapter 2
Installation Procedures
ArcShield Clearance Height
The area above the MCC top plate must be unrestricted for the proper
operation of the pressure relief venting system.
• A minimum clearance above the top of the MCC of 12 in. (305 mm)
must be available for pressure relief and/or venting if an internal arcing
fault occurs.
• Conduit, cable, and wiring must be installed in such a way so that it does
not interfere with the opening of the top plate vent (no cable or conduit
in the top-rear of cabinet; cable trays must be a minimum of 12 in.
(305 mm) above the top plate).
Figure 10 - ArcShield Planning Dimensions
Securing an MCC
Anchor bolts [1/2 in. (13 mm)] can be embedded in the foundation prior to
installation. Two bolts per vertical section fasten the MCC through its internal
mounting angle to the foundation [corner sections require three bolts and 40
in. (1016 mm) wide sections require four bolts]. See the following illustrations
and tables for general dimensions. Dimensions matching your equipment can
be found on the elevation drawings shipped with your MCC.
IMPORTANT
Do not remove the lifting angle from ArcShield™ sections with 100 ms arc
resistant rating.
12 in. (305 mm)
ArcShield Sections with 100 ms
Arc Rating Only
Содержание CENTERLINE 2100
Страница 4: ...4 Rockwell Automation Publication 2100 IN012G EN P August 2016 Summary of Changes Notes ...
Страница 106: ...106 Rockwell Automation Publication 2100 IN012G EN P August 2016 Chapter 10 Maintenance after Fault Condition Notes ...
Страница 108: ...108 Rockwell Automation Publication 2100 IN012G EN P August 2016 Chapter 11 Renewal Parts Notes ...
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