Lennox 49L87 Limit Switch, 200-230°F

The Lennox 49L87 is an automatic-reset limit switch with a 3 in. insert, rated 200-230°F. Mounted on the furnace heat exchanger, it opens the circuit to shut down the burner or blower if temperatures climb outside this range, then resets on its own once the unit cools. This is a genuine Lennox replacement part. Confirm the part number 49L87 against your equipment's parts list before ordering.