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