Lennox 10M63 Auto Limit Switch 120°F Open 160°F Close

The Lennox 10M63 Auto Limit Switch has thermal protection to avoid overheating, and this is made clear by automatic temperature sensing and circuit interruption when unsafe heat conditions occur. This is a temperature-operated control that is installed in furnaces and air handlers of HVAC Systems to check the level of heat in the room and ensure the operating temperature. Happens when the switch is opened at 120°C to prevent the flow of power and is closed at 160°C when normal temperatures are regained.