or clamp mounting through an outlet box knockout

preventing the delayed ignition or nuisance lockouts typical of universal alternatives

The intuitive slide-switch interface for heating

Compatible with 120V AC power supply cords for straightforward field installation and service

Lennox 93W72 Limit Switch 321142-301 or clamp mounting through anThe Lennox 93W72 Limit Switch (also identified as L155 30F) is a critical safety component designed for precise thermal regulation in residential and commercial heating systems. This genuine OEM Lennox replacement part is engineered to monitor internal furnace temperatures and disrupt the electrical circuit if the heat exceeds the safety threshold of 155F. Featuring an auto reset function, the switch restores the circuit once temperatures drop by 30F