What kind of switch is typically used to prevent overheating in a heating boiler?

The high limit cut-off switch is designed specifically to prevent overheating in heating systems, including boilers. This switch monitors the temperature within the boiler and is set to disengage the burner or heating element when a preset high temperature is reached. By doing so, it acts as a critical safety mechanism to ensure that the boiler does not operate beyond its safe thermal limits, thereby preventing potential hazards such as overheating, pressure buildup, and possible boiler failure.

This switch is essential for maintaining safe operating conditions, as overheating can lead to equipment damage and reduce the efficiency of the heating system. The high limit cut-off switch ultimately helps prolong the life of the boiler and enhances safety for users and maintenance personnel alike.