Figure 8: Motor Control Center Views - Hach sc200 User Manual

Model 6 Motor Control Centers
Section 4—Installing the MCC
Joining NEMA Type 1 /
NEMA Type 1 Gasketed /
NEMA Type 12 Sections
Positioning the MCC
Figure 8: Motor Control Center Views
Figure 8A: All Covers in Place
20
Before positioning the MCC sections (see Figure 8), check for damaged bus
bars and insulators. If the bus is bent or insulators are broken, do not install
the MCC. Report any damage to the carrier.
NOTES: • A joining hardware kit is bagged and tied to the right front
corner channel of each shipping split. Captive splice bars are
pre-assembled on the horizontal bus on the left side of each
shipping split.
• For gasket installation instructions, see "Splice Gaskets for
NEMA Type 1 Gasketed and Type 12 Enclosures" on page 28
before joining sections.
To mount and splice a new MCC section to an existing Model 6 section, or
to join factory shipping splits, follow these steps:
1. Turn off all power supplying this equipment before working on or inside
the equipment, and follow lockout/tagout procedures. Always use a
properly rated voltage sensing device to confirm the power is off.
2. Remove the upper and lower horizontal wire trough covers in all
sections, providing access to each section's front splicing bolts (see
Figure 8B).
Figure 8B: Horizontal Wire Trough
Covers Removed
3. To gain access to each section's bus splicing provisions, slide the
panels of the two-piece bus barriers (see Figure 8C) in the sections
adjacent to a splice connection (the left and right sections).
4. Make provisions for fastening the structure(s) to the floor and wall. See
pages 23–27 for fastener locations.
Figure 8C: Two-piece Bus Barriers Removed
(splice connection made)
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10/2012