Dongguan Heng Hao Electric Co., Ltd
                                                                                                           
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Since 2011
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KSD301 Bimetal Thermostat Temperature Switch with 0-250℃ Range 100000 Cycles and Normally Closed Contact

Price Negotiable
Price: USD 0.3~0.5PCS
MOQ: 1000PCS
Delivery Time: 10~15 WORKDAYS
Brand: HENGHAO
Product Description
Temperature Switch KSD301 Thermal Switch KSD301 Auto Reset Thermal Fuse KSD301 Thermal Fuse
Product Overview
KSD301 Temperature Switch and Thermal Fuse

The KSD series thermostat operates on the principle of bimetal discs that snap into action when temperature changes occur. This snap action engages the internal contacts, ultimately controlling the circuit by opening or closing it. Key features include fixed working temperature settings, reliable snap action, minimal flashover, extended operational lifespan, and reduced radio interference.

Technical Specifications

For detailed specifications of the KSD302 thermostat, refer to the following table:

Voltage & Current AC 125V max 15A; AC250V 5A 10A 15A max 16A
Action Temperature 0~250℃
Recovery and Action Temperature Difference 0 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 Resistance AC50Hz 1500V / min, no breakdown blinding (Normal State)
Life Cycle ≥100,000 times
Contact Type Normally closed or Normally open
Mounting Bracket Two kinds: movable or immovable
Terminal Type a. 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
Housing Plastic or ceramic
Temperature Sensor Face Aluminum cap or copper head
KSD301 Thermal Switch Components
Reset Types Comparison
Manual Reset Type

Temperature sensing components consist of bimetallic strip. When the temperature reaches the action temperature range, it snaps quickly and the movable disc disconnects. When the temperature declines to a fixed temperature point, the contact point cannot reset until the circuit is reconnected by pushing the reset button. The contact points then recover, achieving the purpose of connecting or disconnecting the circuit and restarting the circuit by manual reset.

Important Notes:

  • This type of manual reset thermostat can reset when the temperature declines 20°C after snap action by pressing the reset button. Apply 4~6 N of force; avoid using excessive strength.
  • To ensure normal function, the distance between the reset button and the close cover should not be less than 20.4mm.
Auto Reset Type

Temperature sensing components consist of bimetallic strip. When the temperature reaches the action temperature range, it snaps quickly and the movable disc disconnects. When the temperature declines to a fixed temperature point, the contact point automatically resets and resumes operation.

Temperature Settings

Application temperature settings for the KSD302 bimetal thermostat:

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℃
Certifications

This product has UL, CQC, TUV and RoHS certification approval.

KSD301 Thermal Switch Certifications

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Dongguan Heng Hao Electric Co., Ltd
Location No.9, five lane, Shangchegang, Shangtang road, Gekeng, Hengli Town, Dongguan City, Guangdong, China
Contact Person Cherry Lee

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