Lennox 52M74 Rollout Switch OEM Precision: Calibrated specifically to

OEM Precision: Calibrated specifically to a 0

preventing damage to the heat exchanger and potential safety hazards in residential HVAC systems

Frequent tripping is often caused by restricted airflow

Environmentally Sealed: Achieves an IP65 rating to prevent short circuits caused by condensation or external fluid leaks

Lennox 52M74 Rollout Switch OEM Precision: Calibrated specifically toThe Lennox 52M74 Rollout Switch is a critical safety component designed for precise over temperature protection in Lennox furnace units and residential HVAC systems. As a Single Pole Single Throw (SPST) switch, this manual reset flame rollout switch is engineered to interrupt the ignition circuit when it detects temperatures reaching the 320 degrees F threshold. This prevents hazardous conditions resulting from heat exchanger failure or flue