Rockwell Automation 2500 CENTERLINE MCC Joining and Splicing Columns - Manual (Page 10)

Publication 2500-IN004A-EN-P - August 2009
10 CENTERLINE 2500 Motor Control Centers Installing, Joining and Splicing Columns
Securing a Motor Control
Center Documentation packages shipped with assembled MCCs include an
MCC elevation drawing showing an MCC floor plan layout. To secure
a column to the foundation refer to the provided floor plan layout and
the following procedures.
Refer to the CENTERLINE 2500 Installation Manual, publication
2500-IN001 , for cable and conduit routing instructions.
Securing a Column or Shipping Block
Each column is arranged to allow four steel M12 bolts (minimum
Property Class 8.8) to be used to securely fasten each MCC column
through its internal mounting angle to the foundation. Anchor bolts
(M12) may be pre-located and embedded in the foundation prior to
installation. Although four mounting holes are preferred, at least one
bolted connection is required in the front and rear of each MCC
column.
Follow these procedures for securing the MCC.
1. For IP 54 Enclosures, remove the tube of caulking (mastic)
sealer from the splice kit and read the application directions on
the tube.
2. Cut the nozzle at the first notch, 3 mm (0.125 in.) from the end.
3. Apply a continuous bead of caulking, 3 mm (0.125 in.) wide,
around the outside edge of the sideplate of the fixed motor
control center.
IP54 Sealing Caulk Location
TIP
For IP20, IP40, or IP42 Enclosures, no additional gasketing is required.
Apply 3 mm (0.125 in.) wide
continuous bead of caulking sealer.
Do not allow ‘skin’ to form on
caulking before joining the
sections.