Lennox 97W45 Limit Switch 320074-702 Enhanced Safety: Finger-proof construction and

Enhanced Safety: Finger-proof construction and full fuse isolation in the off position minimize shock risks during electrical disconnect maintenance

refer to your valve body’s nameplate specifications for fluid temperature limits

Thermal Protection: Features internal thermal overload protection to prevent localized overheating should the motor encounter a locked rotor condition or excessive static load

This genuine OEM replacement part ensures complete signal integrity between your control board and critical peripherals like the pressure switch or inducer motor

this specific model requires a 208V to 240V signal to energize the coil

Lennox 97W45 Limit Switch 320074-702 Enhanced Safety: Finger-proof construction andThe Lennox 97W45 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Engineered as a normally closed thermal switch, this L140 30F secondary limit monitors heat exchanger temperatures to prevent overheating and potential heat exchanger fatigue. With a fixed temperature setting of 140F and a 30F differential, this Lennox high limit sensor ensures a reliable cutout when