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Garden Equipment Thermal Protector

3MPE protectors are for AC motors, they are both temperature and current sensitive. They can protect motor from overheating or loading.

Product Details:

3MPE both current and temperature protector




Special Features

*  Small size, Long life and high reliability;

*  High level bimetal ensures that it can withstand the current of normal circuit;

*  The combination of bimetal and heater can action snappily;

*  Accurate trip off time can prevent motor from overheating;

*  Both temperature and current sensitive;

*  Each part ROHS environmental standards are strictly enforced;

*  Terminals are optional and customized;

*  Wires are optional and customized;

*  Sealed sleeving can make the protector varnishing proof.

Electrical Specifications

18A / 250V AC

28A / 125V AC

Technical Parameters


Operating Temperature Range 50℃~180℃
Workable Tripping Off Current Range 2~45A
Temperature Tolerance ±5℃,±7℃
R/T 25℃current Testing Standards 4~10S (Or Customized)



Window Motor

Wiper Motor

Car Seat Motor

Skylight Motor

Soybean Milk Machine

Juice Machine

Food Processer

Noodle Machine

Washing Machine

Dust Collector

Garden Equipment





Dimensional Drawing




Life Cycles

Under the conditions of the rated voltage, current and power factor of 1, a heat source is added to the product to make it move for 2000 times, which should meet the following conditions:

A:Operation temperature shall not shift form initial temperature by less than ±5℃;

B:Contact circuit resistance: Less than 50mOHM;

C:No welding or shedding of electrical contacts;

D:Continue the experiment to 10,000 times also can action.


The temperature increasing speed should be 1℃/2 minutes when conducting temperature calibration;

Vacuum varnish immersion is not recommended ,this warranty does not cover;

Products with high contact resistance are usually removed by following methods to remove the oxide film on the surface of the electrical contact.


Garden Equipment Thermal Protector