3455R81890028

Temperature Sensors - Thermostats - Mechanical

3455R81890028 is an application field and working principle of temperature sensors and thermostats especially for those of mechanical type. This type of temperature sensor/thermostat uses a mechanical switch to indicate whether a particular temperature has been reached. This switch is triggered by changes in the temperature of the environment.

The working principle of 3455R81890028

The thermistor is the key component inside 3455R81890028. A thermistor is a temperature-sensitive resistor that changes its resistance with changes in temperature – typically, its resistance decreases with an increase in temperature. This change in resistance produces a change in voltage, which is detectable by a measuring instrument such as a voltmeter. The thermistor is insulated from the environment, and is then connected to a switch. With this arrangement, the thermistor controls the opening and closing of the switch.

The switch will remain open when the temperature inside the environment stays below a predetermined value. When the temperature in the environment increases to this specific temperature, the thermistor\'s resistance decreases and the switch is closed. This closes the circuit and the temperature sensor/thermostat indicates that the environmental temperature has reached a predetermined threshold.

There are variations on this arrangement. For instance, the switch may be open when the predetermined temperature is reached, instead of closed, and there may be multiple switches to indicate even more precise threshold temperatures.

Applications of 3455R81890028

3455R81890028 have wide applications in industry and life. Its main application are temperature regulation and overheat protection. In industry, it can be used for water heaters, climate control systems, medical equipment, and air conditioners, etc. In our daily life, 3455R81890028 can be found in everyday household objects such as refrigerators, air conditioners, washing machines, ovens, toasters, and irons.

Moreover, 3455R81890028 can also be used in safety systems to prevent overheating in electrical appliances. For example, in a vacuum cleaner, when the temperature of the winding of the motor reaches a certain temperature, the 3455R81890028 will react to turn off the appliance and prevent the motor from being damaged.

Overall, 3455R81890028 are a type of temperature sensor/thermostat that is popular for its flexibility, ease of use, and relatively low cost. Many applications that require temperature regulation can benefit from this type of device, and it continues to be a staple for many industries and households.