4Pcs KSD301 Thermostat 120°C/248°F 30A 250V Normally Closed N.C Switch, Ceramic

What is this?A thermostat automatically switches circuits on or off by sensing temperature changes to maintain a set point, widely used in circuits requiring automatic temperature-based switching, including household appliances (coffee makers, ovens, microwaves, air fryers, toasters, rice cookers, steamers, heaters) as well as transformers, motors, automotive electronics, and automated equipmentWhat will I get?Model: KSD301Action Temperature: 120°C/248°FAction Type: N.C (Normally Closed)Rated Voltage/Current: 250V/30AReset Method: AutomaticBody Material: CeramicTerminal Type: Bent-foot Fixed RingSize: 32 x 13mm / 1.26 x 0.51 inch (L x H)Total Height: 22mm / 0.87 inchDiameter: 16 mm / 0.63 inchIn the package of: 4 pcs x Adjust Snap Disc Temperature SwitchAre there any advantages of the product?Double Metal Chip: The universal auto-reset thermostat features a snap-action bimetallic disc for rapid response, high sensitivity, and precise temperature controlProtection: Its high current-carrying capacity and arc-free safety design ensure long-term reliability and extended service life for temperature regulation and overheating protection in various electrical appliancesHow to use it?For proper operation, firmly install the thermostat on the surface of the heating component, connect it in series with the control circuit, ensuring correct polarityWhat should I notice?The original state of the temperature control switch contact is closed, and it opens when the temperature sensing exceeds the rated temperature. Always verify specifications (voltage, current, action temperature) and contact type (NC) before purchase