KSD301 KSD302 Ceramic Temperature Switch Thermostat 10A–30A 250V

2PCS KSD301 / KSD302 Ceramic Temperature Switch Thermostat

Keep your electrical equipment running safely and efficiently with these precision-engineered ceramic disc thermostats. This 2-piece set includes KSD301 (Normally Closed) and KSD302 (Normally Open/Closed) temperature switches, designed for reliable thermal cutoff and temperature regulation in a wide range of household appliances, industrial equipment, and DIY electronics projects.

Key Features

• Versatile Temperature Range: Available from 0°C to 350°C to suit virtually any thermal protection application.
• Multiple Current Ratings: Choose from 10A, 16A, or 30A to match your circuit requirements.
• High Voltage Rated: Supports up to 250V AC for safe use in mains-connected appliances.
• Ceramic Construction: Durable ceramic housing ensures excellent heat resistance, electrical insulation, and long service life.
• Normally Open & Normally Closed Options: Flexible configurations to suit both safety cutoff and activation-based temperature control circuits.
• CE & RoHS Certified: Meets European safety and environmental compliance standards.
• 3C Certified: Certification No. 2020010204274244.
• No Battery Required: Fully passive electromechanical device — no power source needed for operation.

Specifications

Common Applications

• Water heaters, boilers, and electric kettles
• Coffee makers and food warmers
• Hair dryers, curling irons, and other personal care appliances
• Motors, transformers, and power supplies
• 3D printers and DIY electronics projects
• Industrial heating equipment and ovens

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Frequently Asked Questions

Q: What is the difference between the KSD301 and KSD302 ceramic thermostat?

A: The KSD301 is a normally closed (NC) thermostat — it stays in the closed (conducting) position at normal temperatures and opens the circuit when the set temperature is reached, cutting off current. The KSD302 is available in both normally open (NO) and normally closed (NC) configurations, offering more flexibility for activation-based or cutoff-based thermal control circuits.

Q: What current and voltage ratings are available for these temperature switches?

A: These ceramic thermostat switches are available in 10A, 16A, and 30A current ratings, all rated for 250V AC. Choose the rating that matches the load requirements of your specific appliance or circuit.

Q: Are these thermostats suitable for use in household appliances and DIY projects?

A: Yes. The KSD301/KSD302 ceramic temperature switches are widely used in water heaters, coffee makers, hair dryers, motors, 3D printers, and a broad range of industrial and DIY electronics applications. They are CE and RoHS certified, making them suitable for use in both consumer appliances and professional projects within the supported temperature range of 0°C to 350°C.

Q: Do these switches require any battery or external power to operate?

A: No. These are fully passive electromechanical devices. They operate based on the bimetallic disc mechanism inside the ceramic housing and do not require any battery or external power source to function.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.