installation of the equipment, adding installation
material, such as conduit and wire, and quality
information to PART 2 PRODUCTS. UFGS-16415A may be
used as a basis for the EXECUTION section.
Suitable drawings showing the general arrangement
and single-line diagram of each motor control
center, switchboard, and panelboard should be
included with the procurement specifications. The
drawings should show the locations of conduit and
cable entrances, details of nameplates, and
tabulations showing the NEMA size of contactors and
motor controllers, trip ratings of circuit breakers,
solid state trips where required, alarm and bell
contacts and shunt trips where required, sizes of
feeder and branch circuit conductors, and ratings of
motors and other loads.
This specification covers NEMA Class II motor
control centers where interlocking and remote
control are required as is engineering effort on the
part of the manufacturer. Where cost savings may be
realized by grouping motor controls together, but
where motor operations are not interlocked, locally
or remotely, and no manufacturer's engineering
effort required, NEMA Class I should be used. This
specification may be modified for NEMA Class I motor
control centers by deleting the following paragraphs
from PART 2:
WIRING (except when applicable to switchboards)
TERMINAL BLOCKS (except when applicable to
switchboards)
MOTOR CONTROL CENTERS - change references to Class
II, type B and C.
Horizontal Wireways - the option for mater terminal
block compartment should generally not be included.
Wiring for Motor Control Centers
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1.1
REFERENCES
**************************************************************************
NOTE: Issue (date) of references included in
project specifications need not be more current than
provided by the latest guide specification. Use of
SpecsIntact automated reference checking is
recommended for projects based on older guide
specifications.
**************************************************************************
SECTION 16403A
Page 5
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