Wiring – Rockwell Automation 1329R Small AC Motors, 1/3-3 HP, User Manual User Manual

Page 3

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1329R Small AC Motors

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Since 15/16” is not a standard bolt length, a 7/8” bolt or a 1” bolt with
a lockwasher can be used.

Wiring

Check nameplate data on motor before installing to assure correct
rating and that the available power supply agrees with the motor
power supply. If in doubt, check local power company. Fuses, wires,
thermal cutouts and other protective devices should be the proper size
and rating to safely carry the load and to interrupt the circuit on
overloads. Built in thermals, when installed, are of proper size to
provide the required protection

All motors contain wiring instructions either as a label on the inside
of the conduit box cover or by separate sheet or tag. All motors
should be installed in accordance with the National Electric Code and
local requirements. Check leads or terminals with connection
diagrams or label so the proper connections to the incoming power
leads are made.

Important: When motors are provided with thermal protection

(typically thermostats), it is important to properly
connect and apply the devices. This will ensure that the
motor is properly protected from being operated if
thermal limits are reached and/or exceeded. The control
system must be configured to reduce the motor load and/
or shut down the motor control system to allow the motor
to cool to a level within acceptable operating ranges. If
the motor is operated with the thermal protective devices
tripped (indicating an over temperature condition), the
motor insulation could be damaged and complete failure
of the motor insulation is possible. In the event of motor
failure due to an over temperature condition, Rockwell
Automation requires that motor thermal protective
devices (when supplied) be adequately monitored and
incorporated into the motor control system to maintain
warranty. Failure on the part of the individual installing
this equipment to take these steps will result in the
factory warranty being voided.

!

ATTENTION: To guard against motor damage such as
premature failure and/or a loose assembly, use only
mounting bolts that are the correct length. A bolt that is too
long may cause damage to the motor.

!

ATTENTION: Ground the machine properly to avoid
serious injury to personnel. Grounding should be in
accordance with the National Electrical Code and
consistent with sound local practices.

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