KSD301 Series Snap-action Bimetal Thermostat Jaye's KSD301 Series Snap-Action Bimetal Thermostat is a compact temperature control and protection device designed for electrical appliances and heating equipment. It uses a bimetal disc sensing structure that quickly switches the circuit ON or...
Jaye Heater Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of ksd301 series snap-action bimetal thermostat in China, also supports custom service. Welcome to wholesale high quality ksd301 series snap-action bimetal thermostat at competitive price from our factory.

Jaye's KSD301 Series Snap-Action Bimetal Thermostat is a compact temperature control and protection device designed for electrical appliances and heating equipment. It uses a bimetal disc sensing structure that quickly switches the circuit ON or OFF when the preset temperature is reached. This thermostat is widely used in household appliances, heating equipment, electric devices, and industrial temperature protection systems.
We are a professional manufacturer of heating elements and temperature control components, providing reliable and cost-effective thermal solutions for global equipment manufacturers. With strict quality control and advanced production technology, our temperature control products deliver stable performance, accurate temperature response, and long service life.
| Rated voltage | 250/120V |
| Hot insulation resistance | >7MΩ |
| Rated current | 10A/16A |
| Normal working temperature range | 0~250 |
| Working temperature difference | ± 15 |
| Moisture leakage current | <0.5mA |
| Cold withstand voltage | >2400V/S |
| Contact state | Off/on |
| Rotation angle | 0-310ºC |
| Contact resistance | <50MΩ |
| Insulation resistance | >100MΩ |
| Electric strength | 2000V/0.5A/1s |
| Service life | 100, 000 times |
| Easy for installation | |
| Size of the terminal and the angle can be made according to the customer's requirements | |

The KSD301 snap-action thermostat is designed for safe and reliable temperature control.
The internal bimetal disc provides quick switching action when the temperature reaches the preset point, helping protect equipment from overheating.
The thermostat maintains stable temperature performance and helps electrical appliances operate within a safe temperature range.
Its small size allows easy installation inside limited spaces, making it suitable for compact heating equipment and household appliances.
The snap-action structure reduces contact arcing and improves operational reliability during repeated switching cycles.
Jaye Heater supports customized temperature settings, terminal types, reset methods, and mounting structures according to customer requirements.




Heating appliances require reliable temperature protection to prevent overheating. The KSD301 thermostat can monitor temperature changes and disconnect the circuit when abnormal temperature conditions occur.
Applications include:
Many household appliances use compact thermal protectors to improve safety and extend product life.
Common applications:
Industrial equipment often requires simple and reliable temperature protection solutions. KSD301 thermostats are suitable for equipment where automatic temperature switching is required.
Applications include:

Yes. Jaye Heater provides customized KSD301 thermostats according to customer requirements, including:
Operating temperature
Reset type
Contact type
Terminal design
Housing material
Mounting method
Automatic reset thermostats will return to their original state after the temperature drops below the reset point, while manual reset models require physical resetting after protection activation.
KSD301 thermostats are commonly used in coffee machines, water dispensers, electric heaters, microwave ovens, heating pads, and other compact electrical appliances.
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