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MODEL T33907
110 Volt
2-3 HP 110V 1-PHASE
MAGNETIC SWITCH
INSTRUCTIONS
For questions or help with this product contact Tech Support at (570) 546-9663 or techsupport@grizzly.com
Single-Phase
Electrocution or
fire could occur if
this switch is not
installed by an electrician or qualified
service personnel!
Power Source
A1
3L2 5L3 13NO
1L1
A2
M
6T3
14NO
96 NC
A
LA9D0909
R
R
E
E
S
S
E
T
E
T
ON
Ground
Contactor Aoasis
CJX2-1810 (110V Coil)
COLOR KEY
BLACK
GREEN
RED
YELLOW
Bk
Gn
Rd
Thermal Overload
Relay Aoasis JR28-13
(12-18A)
CJX2
1810
2T1
TEST
98 NO
2T1
Aoasis
4T2
6T3
Aoasis
A
18
JR28-13
12
16
14
S
T
O
P
97 NO
95 NC
4T2
Figure 1. Model T33907.
2-3 HP 110V Motor
DISCLAIMER: Color of wires shown in pictures and diagrams may not match the color of motor wires and
incoming power wires in your application. When installing this magnetic switch, consult the wiring diagram
in the motor junction box and the wiring diagram inside the magnetic switch cover.
COPYRIGHT © MAY, 2023 BY GRIZZLY INDUSTRIAL, INC., REVISED NOVEMBER, 2023 (JM)
NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
(FOR MODELS MFD. SINCE 05/23) #JM22728 PRINTED IN CHINA
***Keep for Future Reference***
V2 .11. 2 3
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OPERATION: When pushed, the green ON button on the outside cover of the magnetic switch energizes
a magnetic coil, which pulls the contactor closed. The main current then passes through the contactor
and thermal overload relay to the motor. The red OFF button breaks the magnetic field, which opens the
contactor and disconnects the current to the motor. A motor overload or an interruption of the power supply
will also break the magnetic field and release the contactor and disconnect current to the motor. The motor
will not restart until the overload is reset and/or the ON button is pushed.
Thermal Relay Overload Amp
Adjustment Dial: Turn this dial
to the amperage setting specified by the motor manufacturer.
Typically, this setting is 100–
110% of the amperage load listed
on the motor data plate. Please
note that turning this dial has
no effect on increasing motor
horsepower. If turned too high,
the motor can overheat and be
damaged before the relay trips.
Manual Trip Test Lever: If the
thermal relay function is in question, run the motor and use a
wooden toothpick to push the red
TEST button in. If motor shuts
off, thermal relay has tripped and
is functional.
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, closing the contactor
and sending power to the motor.
Manual/Auto Reset Button:
In the out position, the thermal
relay is in manual reset mode.
This means you must re-install
the outside cover and push the
red OFF button, then push the
green ON button to reset the
thermal relay. In the in position,
the thermal relay will automatically reset when it has cooled.
OFF Button: When pushed, the
current going to the magnetic
field coil is cut, which opens the
contactor and cuts power to the
moto r.
-2-
Model T33907 (Mfd. 05/23)
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