What is the key function of a temperature limit switch?

The key function of a temperature limit switch is to prevent overheating. This device is an essential safety component within heating systems. It monitors the temperature of the system and is designed to shut down the operation of the heating system if it detects that the temperature exceeds a predetermined safe level. This action is critical to avoid potential hazards, such as damage to the heating system or even fire risks. By shutting off the system when overheating occurs, the temperature limit switch plays a vital role in ensuring safe operation and protecting both the equipment and the environment.