3150U00200460

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3150U00200460 is a mechanical thermostat, which is a type of temperature sensor. Compared with the traditional temperature sensors, the sensor is relatively simple in structure and uses a controlling system to measure the temperature and switch on/off the various loads according to the set temperature value. It is extensively used in the fields of heating, air conditioning and refrigeration.

Principally, a mechanical thermostat contains a sensor, a temperature sensing element and a controlling system. The sensor is installed in a housing with an adjustable temperature setting knob, and is connected to the load via the controlling system. On the other side, the temperature sensing element, typically a bi-metal strip, is usually located between the two contacts of the switch. Sitting on the end of the bi-metal strip is a movable contact which will make or break contact with the other contact when the temperature changes.

When the surroundings temperature is cooler than the set temperature, the bi-metal strip will be in a curved shape and the movable contact will remain on the other contact. This will make a connection between the two contacts, and the controlling system will then complete the circuit and provide power to the load. Vice versa, when the surroundings temperature is higher than the set temperature, the bi-metal strip will be flattened due to thermal expansion and this will break the connection between the two contacts, resulting in the controlling system interrupting the power from the load.

The mechanical thermostats are widely used in the field of industrial automation. Especially in the field of heating, air conditioning and refrigeration, the thermostats are commonly used as temperature sensors for controlling the temperature in the working environment. They are extensively used for controlling the heating system to ensure the safety and comfort of the buildings. In the industry of refrigeration, the thermostat can also be used to control the temperature of the refrigerators in order to maintain a regulated temperature.

The mechanical thermostat is a reliable temperature sensor and its working principle is straightforward and easy to understand. Thanks to its relatively simple structure and accurate temperature setting, the thermostat is widely used in various applications. It is an essential temperature sensor in the field of industrial automation and it will continue to play an important role in the future.

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