Explore durable fan and limit controls at F.W. Webb. A limit switch prevents damage to a furnace and provides safety by protecting the unit from overheating; it turns off the gas supply to the burners when it gets too hot. Use our helpful filters to sort limit switches, pressure controls, and thermostats by size, material, end connection, voltage, and electrical rating. Browse quality fan and limit controls from trusted makers, including Source 1, Johnson Controls, Mars, Supco, and White Rodgers, to find the right match for any HVACR equipment.
Limit switches are used in machinery or manufacturing applications when a moving component or machine makes contact with a lever or actuator.
Limit switches have the following advantages:
