Foshan Best Electrical Appliance Industry Co., Ltd.
Main products:Thermostat,Temperature controller,Room thermostat
Contact Us
  • Contact Person : Mr. Yang Mingpei
  • Company Name : Foshan Best Electrical Appliance Industry Co., Ltd.
  • Tel : 86-757-28978610
  • Fax : 86-757-28901976
  • Address : Guangdong,Foshan,South of 5th Floor, Hengtong Building. South of Lanshi Bridge. Lecong Residents Committee. Xiaobu Section, Lecong town,. Shunde District
  • Country/Region : China
  • Zip : 528315

Capillary Thermostat--High Temperature Limit Switch

Capillary Thermostat--High Temperature Limit Switch
Product Detailed
1.High Temperature Limit Switch 2.Reset type:Manual Reset 3.Temp:-35C to +320C 4.Rating:16(3)A-250V 5.Temperature Switch UL

Capillary Thermostat--High Temperature Limit Switch 


WKB-S High Temperature Limit Switch  is widely applied to the most electric heaters, acting an key role as a dual overheat protection. This Manual-Reset High Temperature Limit Switch has a capillary length of approx 700mm (partly sleeved as shown in picture), sensing bulb (sensor) is approx 6mm thick. It cuts out at preset temperature. It is a red button that is the manual reset button. 



Features of High Temperature Limit Switch

 Strictly comply with UL, CE, CQC, RoHS, and ISO regulationManual-reset designAvailable in a wide temperature range and differentialSnap-Action electric switchLittle magnetic interference

Specifications of High Temperature Limit Switch


Temperature Range of High Temperature Limit Switch

-35°C ~ +320°C 

Temperature Differential

5% of Action Temperature

Length of Capillary

300mm~3000mm optional

Material of Capillary and Sensing Bulb

Stainless Steel and Copper optional

Diameter of Sensing Bulb


Electric Rating

16(3)A 250VAC~10(1.8)A 400V


Wiring Diagram

Single Pole Single Throw (SPST)

Single Pole Double Throw (SPDT)

Direction of Terminal

45 degree

90 degree downward

Material of Terminal


Center of Mounting Hole


Min. Capillary Bend Radius


Temperature Rate of Change



6000 cycles

If you have any queries about this High Temperature Limit Switch, then please don’t hesitate to contact us in any way, and we will always help you with it.




Capillary Thermostat--High Temperature Limit Switch

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