Lennox 99K63 M/R Rollout Switch 250°F

The Lennox 99K63 MR Rollout Switch crucial safety devices used in HVAC equipment such as furnace and air handlers. It performs the function of a observer, keeping track of the internal temperature all the time. In case the temperature goes high beyond a certain limit depending on the model, which is 250°F for this one, the rollout switch shuts off the power supply automatically. It helps to eliminate and control against overheating, equipment damage and even the risk of fire hazards. The Lennox 99K63 MR Rollout Switch is a small but highly essential safety component for your HVAC system.