24
E VOLUTI ON S E R I E S E9 0 0 0
M OTO R CO N T R O L C EN T ER
Wiring between sections
Figure 23A shows the dimensions of side cutouts in
each vertical section for wiring between sections.
Cross-wiring can be accomplished at both the top
and bottom of sections. 20-inch or 22-inch deep
vertical sections accessible from the rear can be
cross-wired in the open rear area, with the wiring
brought forward through oval openings in the rear
of the vertical wireway.
Terminal blocks
The terminal blocks are mounted on a metal rail
located at the bottom of the unit, as shown in
Figure 24. The terminal block easily slides into
position from either side of the mounting rail.
Installation of standard motor control center units
Any unit ordered separately is shipped complete
with the door and associated hardware. If the space
available in the vertical section is greater than the
new unit height, order a blank filler door with hinge
hardware and a snap shelf. See the renewal parts
bulletin for ordering blank doors
and gasket materials. The gasket material lines
the inner perimeter of the section. Figure 25
shows the gasket material mounted to the
outside of the door.
If rear access is used, a rear main bus barrier is a
required option.
If 2500A without fans, 2500A Type 12, 3000A,
or 3200A main bus configurations are used, 3"
of clearance between back of MCC and wall
is required.
—
23A
Side cutout dimensions
on 13-inch, 20-inch,
22-inch and 25-inch
—
23B
—
23A
—
23B
Side cutout dimensions
on 30-inch
—
24
—
24
Mounting the
terminal block
—
25
—
25
Type 12 and arc-resistant
gasket material installed
in a MCC section
Gasket
24.3
15.0
2.4
19.9
THREE PHASE SPLIT BUS
Содержание Evolution Series E9000
Страница 1: ...INSTALLATION OPER ATIONS AND MAINTENANCE MANUAL Evolution series E9000 Motor control center ...
Страница 2: ......
Страница 50: ...50 EVOLUTION SERIES E9000 MOTOR CONTROL CENTER ...
Страница 51: ......