The KSD301 Series is a compact, snap-action bimetal thermostat designed for temperature control and overheating protection. It features a single-pole, single-throw (SPST) contact structure and is suitable for resistive loads.
It is widely used in coffee makers, water dispensers, toasters, microwave ovens, heating pads, portable refrigerators and other compact household appliances.
Technical Specifications
| Item | Specification |
|---|---|
| Function | Temperature control / Overheat protection |
| Applicable Appliances | Coffee makers, water dispensers, toasters, microwave ovens, heating equipment and portable refrigerators |
| Rated Current | 5 A / 10 A / 16 A |
| Contact Rating | 250 VAC, 10 A or 16 A; 24 VDC, 10 A |
| Temperature Differential | According to the selected specification |
| Temperature Tolerance | According to the selected specification |
| Protection Class | IP00 |
| Contact Material | Silver or gold |
| Dielectric Strength | ≥1,200 VAC |
| Insulation Resistance | ≥100 MΩ under normal temperature and humidity |
| Base Material | Heat-resistant resin |
| Vibration Resistance | 50 Hz, single amplitude of 0.35 mm |
| Impact Resistance | 150 m/s² |
| Operating Temperature Range | -25°C to +300°C |
| Operating Life | More than 100,000 cycles |
| Relative Humidity | Up to 95% at +20°C |
| Atmospheric Pressure | 86–106 kPa |
| Mounting Position | Any position |
Temperature Characteristics
Automatic-Reset Type
The contacts open when the preset temperature is reached and automatically close again after the temperature drops. This is normally a normally closed (NC) configuration.
One-Shot Type
The thermostat remains closed at room temperature and opens when the preset temperature is reached. Once activated, it cannot automatically reset.
Customization
Operating temperatures and tolerances can be manufactured according to customer requirements. Temperature set-point intervals of approximately 2°C–5°C are available.
