I N S TA L L AT I O N , O P ER AT I O N S A N D M A I N T EN A N C E M A N UA L
17
—
11
—
11
General Working
Clearance Requirements
—
12A
—
12A
Top conduit entry space
for 13-inch sections
—
12B
—
12B
Top conduit entry
space for 20-inch and
22-inch sections
Table 3: Dimensions for figures 12 and 13
Installation of top entry conduits
After the motor control center is in place and
leveled, and the sections are joined together,
conduits can be brought into the tops of sections
as required. Figure 12 and Figure 13 show the
conduit entry space available at the tops of
standard sections. Refer to drawings for
deviations on specific installations.
Note:
Top rear entrance should only be used with
full rear accessibility.
Equipment wiring
When pulling, bending, and terminating
field wiring, avoid scraping, cutting or
otherwise damaging cable insulation
or strands.
Always remove top cover plates when
drilling holes. This prevents small metal
chips from falling into the panel and cause
serious damage.
Width
Dimension A
Dimension B
20"
20"
17.56"
24"
24"
21.56"
30"
30"
27.56"
For plenum-less arc-resistant design, the conduits
can be brought into the tops of the sections
through front or rear flaps as required. For
arc-resistant sections with plenum the conduit
can be assembled on top of the plenum. ABB offers
an additional pull box for higher conduit space
requirement. The Pull box can be assembled on
top of the incoming section.
