Thermostats are known by various names, such as thermostat switches, temperature protectors, and temperature controllers. Based on their working principle, they can be categorized into snap-action thermostats, liquid-filled thermostats, pressure thermostats, and electronic thermostats. In modern industrial control equipment, digital thermostats are the most commonly used type. Structurally, thermostats can be divided into integrated thermostats and modular thermostats.

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