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An overheat protection device is a safety mechanism designed to prevent components or systems from reaching dangerously high temperatures, which could lead to damage or failure. These devices are commonly found in electronics, 電機, and heating systems, automatically shutting them down or reducing their power output when a critical temperature is reached. In essence, overheat protection devices act as a crucial safety net, preventing potentially catastrophic consequences from excessive heat.

A micro motor overheat protection switch and an overload protector are both safety devices for electric motors, but they protect against different types of faults. An overheat protection switch, often a thermal switch, responds to excessive heat in the motor windings, while an overload protector monitors current and trips when it exceeds a safe level, preventing motor damage from overcurrent.