Operational principle
KSD-301 series use bimetal as temperature-sensitive component. In normal condition, the pair of metal sheets are in a free state with contacts being closed / disconnected state .when the temperature reaches the temperature for action, the pair will generate inner stress and move rapidly to open / close contact, switch off /on circuit, and thus playing a role in temperature control. When the electrical devices cool to the reset temperature, the contacts will automatically close / open and return to normal working condition.

Direction for Use:
Hand warmer, hot-water bag, electrical heater.
Technical Parameters
Switch Type : normally closed& normally opened
Operating Voltage/Current: AC250V/10A AC125V/16A
Operating Temperature: 45-100℃ (one step for every 5℃)
Standard Tolerance: ±3℃ ±5℃
Reset Temperature: operating temperature decrease by 15-45℃
Contact Closure Resistance: ≤50mΩ
Insulation Resistance: ≥100MΩ
Service Life: 30000 times