Southern Technologies, LLC
Waukegan, IL 60087
Put these instructions and the original sales invoice in a safe,
dry place for future reference.
Visit us on the web at
powertecproducts.com
19-0604
WIRING DIAGRAM
3 HP 220/240 V
Motor
Thermal Relay
Overload Amp
Adjustment Dial:
Turn this dial to the
motor manufacturer's
thermal overload amp
setting specification.
Typically this setting
is 100-110% of what
is listed on the motor
data plate as the
MAX amp load.
IMPORTANT:
Turning this dial
has no effect on
increasing motor
horsepower. Turning
this dial to a too high
amp setting could
cause the motor to
overheat and become
damaged before the
relay trips.
Reset Button/OFF
Button
Reset Operation: If
the thermal/phase loss
relay has tripped, push
this button to reset the
relay.
OFF Operation: If
the motor is operating
normally, this button
will also cut the current
going to the magnetic
field coil, which opens
the contactor and kills
power to the motor.
Manual
Contactor
Override Lug:
When pushed,
the contactor is
manually closed
for troubleshooting
purposes only.
ON Button: When pushed, power is sent to the
magnetic field coil and the contactor closes and
sends power to the motor.
Manual Trip Test Lever: If the thermal/
phase loss relay function is in question, use a
wooden stick or dowel to slide the brown lever
to the right. If the motor shuts off, the thermal
relay has tripped and is functional. If the motor
keeps running, the themal relay needs to
be replaced.
220/240 3-Phase
Power Source