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|HCET-A/TB02 bimetal thermal switch for tubular motor
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TB02 bimetal temperature switch
TB02 bimetal temperature switch
TB02 bimetal temperature switch
TB02 bimetal temperature switch

HCET-A/TB02 bimetal thermal switch for tubular motor

HCET-A bimetal thermal protector is widely used in small motors,battery packs,medical equipment,heating pads,cables,EV charging.It is small in size and sensitive.

  • Item NO.:

  • Payment:

    T/T;L/C at sight
  • Product Origin:

  • Color:

    As the pictures show
  • Min order:

    100 Pcs
  • Lead Time:

    30 days
  • Certification:


TB02 bimetal thermal protector for tubular motors


Tubular motors are mostly used for electric rolling doors. The motor is hidden in the roll tube, and the drive shaft rotates through the rotation of the motor to realize the lifting of the roller blinds. When rising, the curtains are wound on the reel, and when falling, the curtains slide down along the inner side of the guide rail. Through the control of the remote control, the curtain can be raised, stopped and lowered.

Regarding the protection of tubular motors, we generally use TB02 thermal protectors. It is installed on the winding of the motor and is extremely sensitive to temperature. When the temperature of the motor is too high, TB02 bimetal thermal switch plays a role in protecting the motor.



1. High-quality chips imported from the United States

In order to make our products more accurate, reliable, synchronous, and more sensitive to temperature, our bimetal chips use raw materials imported from the United States.When your motor is overloaded, blocked, etc., TB02 thermal protector can quickly cut off the circuit and provide precise protection for your motor.

2. Small size

The size of each of our thermal protectors is very small, which is for the convenience of customers to install. Of course, the size can also be customized according to your requirements. As long as it meets your product, we will do our best to make it.

3. Silver contacts

The moving contact and the static contact are made of silver, which can ensure a longer life of the thermal protector and a more accurate tripping time. The HCET-A thermal switch temperature sensitive and very reliable.

4. Customizable terminals and wires

Here are a variety of terminals for you to choose from, and you can choose according to your installation needs.The length of the wire can also be customized according to your requirements, the default length is 70 mm.



Item No.


Electrical specifications

2.5A/250 VAC

5A/120 VAC

10A/12 VDC

5A/24 VDC

Operating temperature range


Temperature tolerance

± 3°C, ± 5°C

Housing material

Plastic and metal

Housing size(mm)


Wire No.

3398 22#


Product display

HCET-A thermal protector details

TB02 thermal switch details


Size details

HCET-A thermal protector size

HCET-A thermal switch size


Case analysis

HCET specializes in the production of high-end motor thermal protectors, are widely used in small tubular motors, automotive motors, transformers and other fields. The sales market is not only domestic, but also exported to Europe, America, Southeast Asia and other regions.The market demand for thermal protectors in Zhejiang is considerable. We also have a number of customers in the motor, electrical and other industries, witnessing the development of HCET.

 tubular motor thermal protector                                                                   

Today, I would like to introduce our partner - Huzhou Senfu Electromechanical. Our product quality, delivery and after-sales service have been recognized by customers. It is the most convincing to witness our products with customer satisfaction.

Zhejiang Huzhou Senfu Electromechanical Co., Ltd. is a high-tech enterprise specializing in R&D, production and sales of tubular motors, mid-mounted motors and related control systems.HCET-A thermal protectors that we produce provide motor protection for their tubular motors.HCET-A is small in size, sensitive to temperature, fast in action, accurate and reliable in protection, and each part strictly implements the ROHS standard for environmental protection. Operating temperature range: 30 ℃ ~ 155℃ , the temperature can be customized.


Packing & Delivery


Packed in standard export cartons.

If you have special packing requirements,please feel free to discuss with us,thank you.

Delivery time:

Delivery time for small orders:7-15 days.

Delivery time for special requirements orders:15-30 days.

thermal protector factory

Why choose HCET


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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.