Reznor 50418 Limit Switch ensuring that the blower runs

ensuring that the blower runs long enough to extract residual heat

Fixed Thermal Calibration: Factory-set 160°F trip point provides consistent over-temperature protection without the drift associated with adjustable switches

Its open construction and energy-limiting design ensure it manages momentary short circuits effectively

For 24V applications

Reznor 50418 Limit Switch ensuring that the blower runsThe Reznor 50418 Limit Switch is a critical OEM safety component engineered for Reznor HVAC equipment, specifically compatible with models like the UA100. This 125 145F auto limit switch functions as a high limit safety cut off, monitoring internal heat exchanger temperatures to prevent hazardous overheating. When the temperature exceeds the factory calibrated 145F threshold, the switch opens the electrical circuit to the gas valve, immediately