Lennox 33W86 SPST Limit Switch 175°F Close

The Lennox 33W86 SPST Limit Switch is a safety device that is used for HVAC systems to provide accurate control of temperature. The switch is designed to switch off at 175°F, this means that the circuitry will be interrupted and be unable to flow through the Switch if the temperature rises to the maximum level. Originally installed within furnaces and air handling units, this limit switch aids in ensuring proper system and protection. It prevents equipment failure, lengthens life, and increases productivity while providing a healthy environment in and around the building.