Lennox 18M84 Limit Switch Els PW 17895 the Johnson Controls P100DA-81 provides

the Johnson Controls P100DA-81 provides a reliable

Designed with a rugged NEMA 3R metallic enclosure

birth defects

High-Accuracy Detection: Utilizing a tri-color crystal element

this unit is the industry-standard replacement

Lennox 18M84 Limit Switch Els PW 17895 the Johnson Controls P100DA-81 providesProfessional grade Lennox 18M84 limit switches are critical safety components designed to regulate internal furnace temperatures and protect heat exchangers from thermal stress. This OEM Lennox limit control features a 3 inch insertion depth and is factory calibrated for an auto reset range of 230 260F. As a normally closed switch, it breaks the electrical circuit to the gas valve if the plenum temperature exceeds the 260F threshold, typically caused