Industrial Build: Rated for higher ambient temperatures at the lead wire compared to standard residential thermocouples

This model is technically identical to the SEC99AA-60C

Integrated Ignition-Sensing: Combines the pilot burner and flame sensor to streamline the ignition sequence and improve response times

System Protection: Integrated 3-amp replacable fuse guards the 24V furnace control circuit and transformer from electrical faults

this SPST furnace switch acts as a primary safety mechanism to prevent hazardous conditions by interrupting the burner circuit if heat exceeds calibrated limits

Lochinvar & A.O. Smith 100208490 Relay 319848-301 Industrial Build: Rated for higherThe Lochinvar & A. O. Smith 100208490 Relay is a heavy duty, 10AMP DPDT relay designed for high reliability switching in commercial and residential HVACR systems. Engineering to handle demanding electrical loads, this double pole double throw relay provides precise control over dual circuits, making it a critical component for sequencing blowers, burners, or pumps. This genuine OEM replacement part is identical to industry part numbers RLY2051 and