After about 5 minutes of connecting the electric kettle to the power supply, the steam causes the bimetallic plate of the steam temperature sensing element to deform, and the top opening switch contacts disconnect the power supply. If the steam switch fails, the water in the pot will continue to boil until it is dried, causing a sharp increase in the temperature of the heating element. There are two bimetallic plates located at the bottom of the heating plate, which will rapidly increase in temperature due to thermal conduction, expand and deform, and disconnect the power supply. Therefore, the safety protection device for electric kettles is designed very scientifically and reliably.

The key component of an electric kettle is the thermostat, and the quality and service life of the thermostat determine the quality and service life of the kettle. Temperature controllers are divided into: simple temperature controllers, simple+jump temperature controllers, waterproof and anti dry burning temperature controllers. It is recommended that consumers choose waterproof and anti dry burning temperature controllers for electric kettles. In addition to the key temperature controller, the composition of an electric kettle must include these basic components: the kettle opening button, kettle top cover, power switch, handle, power indicator light, heating floor, etc.