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High Sensitivity Adjustable Thermal Switch Thermal Overload Protector

China Shenzhen City Breaker Co., Ltd. certification
China Shenzhen City Breaker Co., Ltd. certification
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High Sensitivity Adjustable Thermal Switch Thermal Overload Protector

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Large Image :  High Sensitivity Adjustable Thermal Switch Thermal Overload Protector

Product Details:
Place of Origin: China(mainland)
Brand Name: K&I
Certification: TUV, ROHS, CQC
Model Number: KI91
Product Name: Thermal Overload Protector
Life Cycle: 100,000 times(TUV)
Temperature Tolerance: ±5/±8℃ or customized
Operating Temperature Range: 0~250℃ customized
Rated voltage: AC250V10A/125V15A
Current: ≤16A 16Amax
Detailed Product Description
High Light:

bimetal thermal switch


temperature limit switch


High Sensitivity Adjustable Thermal Switch Thermal Overload Protector


Quick Detail:


1. KI91 Adjustable thermostat 

  1. 0~250 Celsius degrees
  2. Life cycle:100,000 times
  3. Function: temperature control
  4. CQC, TUV certifications





KST thermostat is a small size thermal switch, which can be widely used in household appliances and other

 electric equipments. 

It works on the principle of thermal expansion and contraction, casing the bimetal plate bent, to turn on or off 

the circuit in pre-set temperature range.

The shaft size and rotation angle can be set according to requirements.

The temperature control is accurate and reliable, with less flashover and long life span.





Electric oven, electric irons, rice cookers, water boilers, cookie baking machine, deep fryer, kettle, stove, fan heater,

 barbeque grill and various household appliances





KI91 Adjustable thermostat 


  1. Dimensions:


Profile Dimensions


Structure Diagram

  1. Turning Screw

10. Upper Spring

  1. Stopper

11. Lower Spring

  1. Rotor Shaft

12. Active Contact

  1. Push Pod 1

13. Passive Contact

  1. Top Plate

14. L Terminal

  1. 4.0 Flat Ceramic

15. Push Rod 2

  1. 3.0 Flat Ceramic

16. Bimetal Plate

  1. Terminal 1

17. Ceramic Tube

  1. Terminal 2

18. Big Rivet




  1. Parameters




Electrical Rating:

Rated voltage: AC250V10A/125V15A

Current:≤16A  16Amax

Operating Temperature Range:

0~250℃ customized

Temperature Tolerance:

±5/±8℃ or customized

Operating Angle Range:


Ambient Temperature:


Life Cycle:

100,000 times(TUV)       



  1. Certifications




Competitive Advantage:  


  1. More than 20years manufacturing experience;
  2. Owns unique R&D center and quality control center;
  3. Equipped with multiple sets of advanced machines which imported from Germany;
  4. We have got UL/CUL, TUV,VDE, RoHS, CQC certifications;
  5. Longevity, high-speed reaction, anti-EMC testing, high precision;
  6. Competitive price, high quality, timely delivery and best service.

Contact Details
Shenzhen City Breaker Co., Ltd.
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