Rockwell Automation 2100 User Manual
Instructions
CENTERLINE® 2100 Motor Control Centers
Joining and Splicing Vertical Sections
Application
The following instructions illustrate the recommended procedures that should
be used when joining and splicing CENTERLINE
Centers (MCCs).
For more splicing information related to specific MCCs, refer to the bus
splicing drawing included in the documentation shipped with the MCC.
ATTENTION
De-energize all power sources to the motor control center
before joining and splicing vertical sections. Failure to
de-energize all power sources can result in severe injury or
death.
®
2100 Motor Control
!
IMPORTANT
Note for NO-OX-ID - If using corrosion inhibitor on bus
bars do not get any on the bus splicing hardware. It will not
allow the hardware to be properly torqued. Damage may
occur.
Recommended Tools
Joining MCCs
1
Assorted screwdrivers, sockets (including 9/16” deep well and 5/16” sockets),
and torque wrench
NEMA 1, 1G, and 12
Physical restrictions at your installation may not allow the following sequence
to be followed exactly as stated.
1. The splice kit(s), if required, are located within a horizontal wireway or
blank unit space. On six space factor frame-mounted units, the splice kit
is within the unit. A fluorescent pink, removable label (on the outside of
the compartment) designates the location. Locate splice kit(s) and set
aside for later use.
Publication 2100-IN010D-EN-P—February 2007
2 CENTERLINE® 2100 Motor Control Centers Joining and Splicing Vertical Sections
2. Remove top and bottom horizontal wireway covers as shown in Figure 2
and Figure 3. Remove the wood shim used in transportation from the
side of the MCC.
3. Remove top, bottom and center end closing plates, if present, exposing
joining holes (referred to as A and B in Figure 2 and Figure 3) of the
MCC. Joining holes not covered by end closing plates may contain
1/4-20 hex head thread-forming screws on the left side and removable
plastic plugs on the right side. These screws and plugs are accessible
both from within the vertical wireway and from the outside surface of
the vertical side plate and must be removed from the side plates to be
joined. See Figure 2 and Figure 3.
4. Remove the vertical wireway cover and horizontal bus splice access
cover from the sections to be joined. See Figure 1 and Figure 7.
5. Pull all “bottom entry” cables, if any are present, through the conduits
to a point where they will be accessible when the center is positioned.
6. NOTE: For NEMA 12 MCCs refer to publication 2100-IN037x-EN-P,
NEMA 12 Sealing Instructions. This publication was shipped with the
splice kit.
7. Slide sections together making sure cabinets are level and holes in side
sheets line-up with adjacent holes. See Figure 2.
NOTE: Make sure cabinets are level and pushed together, tightly. Do
not use hardware to draw cabinets together.
8. Join the two MCCs using the hardware furnished with the splice kit.
• Pass the 1/4-20 hex head thread forming screw from inside the left
MCC through joining holes (A in Figure 2 and Figure 3) and engage
the screws with the holes located in the right center. Refer to Torque
Requirements on page 15
• Pass the 1/4-20 x 5/8 hex screw from inside the left center through
joining hole (B in Figure 2 and Figure 3) and secure with the 1/4-20
steel nut. Refer to Torque Requirements on page 15
9. Secure the MCC to the floor as required by local code.
10. Inspect the interior for dust and dirt; vacuum cleaning is recommended.
Do not clean using compressed air—it contains moisture and may
blow debris into the control equipment.
Publication 2100-IN010D-EN-P—February 2007
Removable top plate
3 CENTERLINE® 2100 Motor Control Centers Joining and Splicing Vertical Sections
Figure 1 Typical 15” Deep MCC Construction
Lift Angle
Top Horizontal Wireway Baffles
Top Horizontal Wireway Pan
Left Hand Top End Closing Plate
(2 on 20” Deep Sections)
Horizontal and
Vertical Bus
Support
Vertical Power Bus
Horizontal Power Bus
Left Hand Center
End Closing Plate
Vertical Plug-In
Ground Bus
Top Horizontal Wireway Cover
Right Hand Unit Support
(Vertical Wireway)
Bus Splice Access Cover
Vertical Wireway Cover
Section Nameplate
Vertical to Horizontal Bus
Connection Access Cover
Vertical Bus Covers
(3 Piece Assembly)
Left Hand Side Plate Assembly
Horizontal Ground Bus,
Top or Bottom
Left Hand Bottom End Closing Plate
(2 on 20” Deep Sections)
Vertical Wireway Door
Unit Support Pan
Sealing Strap
(Top and Bottom)
Bottom Support Angle
Bottom Horizontal
Wireway Cover
Publication 2100-IN010D-EN-P—February 2007
4 CENTERLINE® 2100 Motor Control Centers Joining and Splicing Vertical Sections
Figure 2 Example of 15” Deep MCC
Ground Bus
(Top Option*)
Top Wireway
A - Use a 1/4-20 hex head thread forming screw
B - Use a 1/4-20 x5/8 hex screw and secure with a
1/4-20 steel nut
Refer to Torque Requirements on page 15
Top Mounted
Neutral (Optional)
Phase 1 Power Bus
Phase 2 Power Bus
Phase 3 Power Bus
Bottom Mounted
Neutral (Optional)
A
Top
Horizontal
Wireway
Cover
A
A
B
7 "
A
Bottom Horizontal
Wireway Cover
A
A
15 "
Bottom Wireway
Ground Bus
(Bottom Option*)
Publication 2100-IN010D-EN-P—February 2007
* Ground bus is required. The ground bus can be in the bottom, top or bottom and top.
20” MCC with
Standard Bus
Top Wi rew ay with
closing plate
Figure 3 Example of 20” Deep MCCs
Ground Bus
(Top Option*)
Top Wireway
20” MCC with
Bumped Back Bus
Top Wireway with
closing plate
5 CENTERLINE® 2100 Motor Control Centers Joining and Splicing Vertical Sections
Ground Bus
(Top Option*)
Top Wireway
A
Top Mounted
Neutral (Optional)
Phase 1 Power Bus
Phase 2 Power Bus
B
Phase 3 Power Bus
Bottom Mounted
Neutral (Optional)
A
Bottom Wireway
with closing plate
12 "
20 "
Ground Bus
(Bottom Option*)
To p
Horizontal
Wireway
Cover
A
A
A
Bottom Horizontal
Wireway Cover
A
Bottom Wireway
A
Top Mounted
Neutral (Optional)
Phase 1 Power Bus
Phase 2 Power Bus
B
Phase 3 Power Bus
Bottom Mounted
Neutral (Optional)
A
Bottom Wireway
with closing plate
12 "
20 "
Ground Bus
(Bottom Option*)
To p
Horizontal
Wireway
Cover
A
A
A
Bottom Horizontal
Wireway Cover
A
Bottom Wireway
A - Use a 1/4-20 hex head thread forming screw
B - Use a 1/4-20 x5/8 hex screw and secure with a
1/4-20 steel nut
Refer to Torque Requirements on page 15
* Ground bus is required. The ground bus can be in the bottom, top or bottom and top.
Publication 2100-IN010D-EN-P—February 2007
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