China KSD Bimetal Thermostat manufacturer
Dongguan Heng Hao Electric Co., Ltd
Bimetallic thermostat, thermal protector, thermal switch manufacturer
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KSD301 Temperature Switch with Normally Closed or Open Contacts Auto or Manual Reset and Metal Case

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Dongguan Heng Hao Electric Co., Ltd

City: dongguan

Province/State:guangdong

Country/Region:china

Tel:86-13431163393

Contact Person:
Miss.Cherry Lee View Contact Details

KSD301 Temperature Switch with Normally Closed or Open Contacts Auto or Manual Reset and Metal Case

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Brand Name HENGHAO
Model Number H31
Certification UL
Place of Origin CHINA
Minimum Order Quantity 1000PCS
Price USD 0.3~0.5PCS
Payment Terms T/T
Supply Ability 1000000PCS PER MONTH
Delivery Time 10~15 WORKDAYS
Packaging Details 2000PCS/CARTON
Life Cycle 100000 cycles
Voltage & Current 250V 16A
Contact type normally closed or normally open
Switch type auto reset or manual reset
temperature range 0-250℃
Case metal
Detailed Product Description
KSD301 Temperature Switch - Thermal Switch Thermostat
Temperature Switch KSD301 Thermal Switch Auto Reset Thermal Fuse

The KSD series thermostat operates on the principle of bimetal discs that snap into action when temperature changes occur. This snap action activates the internal contacts, which then open or close the electrical circuit. Key features include fixed working temperatures, reliable snap action, minimal flashover, extended operational life, and reduced radio interference.

KSD302 Thermostat Specifications
Voltage & CurrentAC 125V max 15A; AC250V 5A 10A 15A max 16A
Action Temperature0~250℃
Recovery and Action Temperature Difference0 to 25 degrees, or according to client's request
Temperature Deviation±3 / ±5 / ±10 degree or according to client's request
Circuit Resistance≤50mΩ (Initial value)
Insulation ResistanceAC50Hz 1500V / min, no breakdown blinding (Normal State)
Life Cycle≥100,000 times
Contact TypeNormally closed or Normally open
Mounting BracketTwo types: movable or immovable
Terminal Typea. Terminal type: 187 series of 4.8*0.5mm and 4.8*0.8mm, 250 series of 6.3*0.8mm
b. Terminal Angle: bending angle: 0~90°C optional
HousingPlastic or ceramic
Temperature Sensor FaceAluminum cap or copper head
KSD301 Auto Reset vs Manual Reset Types
Manual Reset Type
  • Temperature sensing components consist of bimetallic strip
  • When temperature reaches the action range, the disc snaps quickly and disconnects
  • Contact points cannot reset automatically when temperature declines
  • Circuit reconnection requires manually pushing the reset button
  • Important: Reset occurs when temperature declines 20°C after snap action using 4-6N force
  • Important: Minimum 20.4mm distance required between reset button and close cover
Auto Reset Type
  • Temperature sensing components consist of bimetallic strip
  • When temperature reaches the action range, the disc snaps quickly and disconnects
  • Contact points automatically reset and resume operation when temperature declines to fixed point
KSD302 Bimetal Thermostat Temperature Settings
Open Temp.Reset Temp.Open Temp.Reset Temp.Open Temp.Reset Temp.
-20℃±5℃5℃±5℃95℃±5℃80℃±5℃205℃±5℃175℃±10℃
-15℃±5℃5℃±5℃100℃±5℃80℃±10℃210℃±5℃180℃±10℃
-10℃±5℃5℃±5℃105℃±5℃85℃±10℃215℃±5℃185℃±10℃
0℃±5℃-10℃±5℃110℃±5℃90℃±10℃220℃±5℃190℃±10℃
5℃±5℃-5℃±5℃115℃±5℃95℃±10℃225℃±5℃195℃±10℃
10℃±5℃0℃±5℃120℃±5℃100℃±10℃230℃±5℃200℃±10℃
15℃±5℃5℃±5℃125℃±5℃105℃±10℃235℃±5℃205℃±10℃
20℃±5℃5℃±5℃130℃±5℃110℃±10℃240℃±5℃210℃±10℃
25℃±5℃10℃±5℃135℃±5℃115℃±10℃245℃±5℃215℃±10℃
30℃±5℃15℃±5℃140℃±5℃120℃±10℃250℃±5℃220℃±10℃
35℃±5℃20℃±5℃145℃±5℃125℃±10℃255℃±5℃225℃±10℃
40℃±5℃25℃±5℃150℃±5℃130℃±10℃260℃±5℃230℃±10℃
45℃±5℃30℃±5℃155℃±5℃130℃±10℃265℃±5℃235℃±10℃
50℃±5℃35℃±5℃160℃±5℃135℃±10℃270℃±5℃240℃±10℃
55℃±5℃40℃±5℃165℃±5℃140℃±10℃275℃±5℃245℃±10℃
60℃±5℃45℃±5℃170℃±5℃145℃±10℃280℃±5℃250℃±10℃
65℃±5℃50℃±5℃175℃±5℃150℃±10℃285℃±5℃255℃±10℃
70℃±5℃55℃±5℃180℃±5℃155℃±10℃290℃±5℃260℃±10℃
75℃±5℃60℃±5℃185℃±5℃155℃±10℃295℃±5℃265℃±10℃
80℃±5℃65℃±5℃190℃±5℃160℃±10℃300℃±5℃270℃±10℃
85℃±5℃70℃±5℃195℃±5℃165℃±10℃Or according to client's request
90℃±5℃75℃±5℃200℃±5℃170℃±10℃
This product has UL, CQC, TUV and RoHS certification approval.
Product Tags: Normally closed or normally open KSD301 Temperature Switch   Auto reset or manual reset KSD301 Thermal Switch   Metal case KSD301 Bimetal Thermostat  
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