Lennox 73K19 Limit Switch 323269-701 the E5-16-03 features a dual-stage

the E5-16-03 features a dual-stage filtration design: the first stage uses multi-layered fiber media and a screen for bulk contaminant removal

Sediment Resistance: The above-drain seat design prevents debris from fouling the seal

System Protection: Optimized condensate management ensures water is effectively channeled to the secondary drain

This furnace high limit switch features an automatic reset mechanism that restores circuit continuity once the temperature drops to the 145°F cut-in point

Lennox 73K19 Limit Switch 323269-701 the E5-16-03 features a dual-stageThe Lennox 73K19 is a technical grade L160 30F Limit Switch engineered for critical temperature oversight in residential and commercial HVAC furnace units. This OEM disc style limit control features a normally closed (NC) circuit configuration and utilizes an automatic reset mechanism for system continuity. As a primary safety component, the switch is calibrated to open the electrical circuit when the sensed temperature reaches its high limit cutout