Dongguan Ampfort Electronics Co., Ltd.
                                                                                                           
Verified Supplier
12 Years
Since 2014
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KSD301 Bimetal Thermostat Temperature Control Switch 25A 250°C Manual Reset for Appliances

Price Negotiable
Price: To be advised
MOQ: 1000pcs
Delivery Time: 7-10 Workdays
Brand: Ampfort
Product Description
KSD301 Bimetal Thermostat Temperature Control
The KSD301 series snap-action bimetal thermostat is a miniature hermetically sealed temperature control device featuring a 1/2" disc design. This single-pole single-throw (SPST) thermostat operates under resistive load conditions and is available in both automatic reset and manual reset configurations for comprehensive temperature control and protection applications.
Product Applications
Widely utilized in various compact household appliances requiring precise temperature regulation:
  • Coffee makers and electric water pots
  • Automatic toasters and microwave ovens
  • Water dispensers and portable refrigerators
  • Steam guns, steam irons, and wind warmers
  • Laminators and electric heating pads
Technical Specifications
Parameter Specification
Maximum Operating Temperature 250°C
Current Rating 25A (5A/10A/16A options available)
Reset Type Manual reset
Base Material Heat-resistant resin base
Contact Material Silver/Gold
Bimetal Disc Diameter Φ12.8mm (1/2")
Dielectric Strength 2000V AC for 1 minute
Insulation Resistance >10MΩ at 500V DC
Terminal Resistance
Protection Class IP00
Certifications UL, CQC, TUV
Safety Standards Compliance
  • EN 60730-1: Automatic electrical controls - General requirements
  • EN 60730-2-9: Temperature sensing controls
  • GB/T 22687: Bi-metal temperature controls for household use
Product Images
KSD301 Bimetal Thermostat front view showing terminal connections
KSD301 Bimetal Thermostat side view with dimensional details
KSD301 Bimetal Thermostat dimensional drawing with measurements
Installation Guidelines
  • Ensure proper earthing through the metal cup connection
  • Operate in environments with humidity ≤90%, free from corrosive substances
  • Apply heat-conducting silicon grease when sensing solid item temperatures
  • Use stainless-steel cup version for liquid or steam temperature sensing
  • Avoid pressing the cup top to prevent sensitivity issues
  • Keep terminals straight to maintain reliable electrical connections
Key Advantages
Independent strength research and development capability
Independent R&D Strength
Accurate and reliable quality control processes
Precise Quality Control
Complete functional specifications for various applications
Comprehensive Specifications
Efficient production and fast delivery capabilities
Fast Production Delivery

Get in Touch

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

Company Dongguan Ampfort Electronics Co., Ltd.
Location Floor 5,Changlong Industrial Building,No.6,Jiangnan Road,Jingshan,Chashan Town,Dongguan 523323,China
Contact Person Annie Fang

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