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Klixon Phenolic Motor Protectors
 
Single–phase:
   
   
 
Three–phase:
   
   
   
 


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Product Uses /\ Top

Industrial motors
Agricultural equipment
Well and sump pumps
Fans
Air conditioners
Refrigerators
Home appliances
...And more!

Site Updated October 16, 2016

* * * Sensata > Products > Klixon Brand > Motor Controls >

Klixon® phenolic motor protectors
AC off–winding non–hermetic single–phase



Features and Overview Rating
Product Uses
Data Sheet (PDF) » Contacts and distributors »




Features and Overview /\ Top

Snap–action Klixon bimetal disc
Sensitive to both temperature and current
Precision calibration
Protects ½ to 5 HP motors
Normally closed
Automatic or manual reset
Fractional to 10hp
Easy to install
UL recognized, CSA certified, VDE certificate
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Klixon
Motor Control
CODE: Phenolics


Sensata Technologies’s line of automatic and manual reset protectors phenolic protectors are intended for ½ hp to 15 hp general purpose, commercial and industrial motors. These single–phase and three–phase protectors can be used in single and dual voltage type motors.

Overheating of motor insulation causes a reduction in dielectric strength. This can result in motor insulation damage or failure.

Klixon phenolic motor protectors are equipped with a bimetallic snap–acting disc, on which the contacts are mounted, and through which the current flows. If overheating conditions occur, the heating effect of the current flow through the Klixon disc and the influence of motor heat will cause the disc temperature to rise.

When the disc reaches the calibrated setpoint, the Klixon protector automatically opens and shuts down the motor, limiting the winding and shell temperature.

When the motor has cooled to an acceptable operating level — allowing the protector to cool to its reset temperature — the Klixon protector resets automatically to a closed contact position. This allows the motor to restart.

This chart is used to determine protector size needed when making an application. For reference only.



Maximum Recommended Contact Rating /\ Top
This chart is used to determine the protector size needed when making an application. To be used for reference only.
Size
Disc Contacts
Terminals
Maximum Current V=120
Maximum Current V=240
0.75"
High capacity
Low capacity
32
25
0.75"
High capacity
High capacity
50
37
1.00"
Low capacity
Low capacity
40
30
1.00"
High capacity
Low capacity
40
30
1.00"
Low capacity
High capacity
40
30
1.00"
High capacity
High capacity
80
60
1.25"
Standard
Standard
135
100
1.50"
Standard
Standard
175
130
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