Any product that produce heat have a thermal breaker, a thermal fuse, or both. Thermal breaker usually look like short cylindrical shaped device, while a thermal fuse look like a fuse in which one end is pointed, and it is rated by how many degrees it will go bad. It would say it on the fuse. Thermal breakers will open the circuit when it reaches certain temperature, then closes again as the device cool down. This process keeps repeating to limit the temperature of a heating device.
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Any product that produce heat have a thermal breaker, a thermal fuse, or both. Thermal breaker usually look like short cylindrical shaped device, while a thermal fuse look like a fuse in which one end is pointed, and it is rated by how many degrees it will go bad. It would say it on the fuse. Thermal breakers will open the circuit when it reaches certain temperature, then closes again as the device cool down. This process keeps repeating to limit the temperature of a heating device.