Dongguan Heng Hao Electric Co., Ltd
                                                                                                           
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15 Years
Since 2011
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KSD301 Bimetallic Thermostat with 100000 Cycles 250V 16A and 0-250℃ Temperature Range for Reliable Snap Action Control

Price Negotiable
Price: USD 0.3~0.5PCS
MOQ: 1000PCS
Delivery Time: 10~15 WORKDAYS
Brand: HENGHAO
Product Description
KSD301 KSD301-R KSD303 Snap Action Bimetallic Thermostat
KSD series bimetallic thermostat product photo
The KSD series thermostat operates on the principle of bimetallic discs that snap into action when temperature changes occur. This snap action activates internal contacts to open or close circuits. Key features include fixed working temperatures, reliable snap action, minimal flashover, extended service life, and reduced radio interference.
KSD303 Thermostat Specifications
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 ≥100000 times
Contact type Normally closed or Normally open
Mounting bracket Two kinds: movable or immovable
Terminal type a. Terminal type: 187series 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
KSD thermostat technical diagram
KSD301 Auto Reset vs Manual Reset Types
Manual Reset Type: Features a bimetallic strip that disconnects at the action temperature. Requires manual reset via button press after temperature decreases by 20°C (4-6N force recommended). Minimum 20.4mm clearance required between reset button and cover for proper operation.
Auto Reset Type: Uses bimetallic strip that automatically reconnects when temperature drops to the reset point, without manual intervention.
KSD301 Bimetal Thermostat Applications
Ideal for temperature control in household appliances including:
  • Coffee pots
  • Automatic toasters
  • Laminators
  • Electric water pots
  • Steam guns
  • Steam irons
  • Wind warmers
  • Microwave ovens
  • Water dispensers
Temperature Specifications
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℃
Custom specifications available according to client requirements
This product holds UL, CQC, TUV and RoHS certifications.
Thermostat certification documentation

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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