High Reliability: No moving parts reduce mechanical failure risks

Designed with a rugged brass body and high-grade NBR seals

meeting the demanding torque requirements of high-static pressure applications

which significantly prolongs the component's operational life compared to standard alternatives

6-inch diameter motors to ensure a secure

Lennox 12J77 Limit L99H008 High Reliability: No moving partsThe Lennox 12J77 Limit Switch is a critical safety component designed for precise temperature regulation in Lennox heating systems. Engineered as a Single Pole Single Throw (SPST) device, this fixed temperature limit control ensures operational safety by monitoring internal plenum temperatures. The switch features a 60F opening point and a 35F closing point, providing an narrow differential necessary for preventing equipment overheating or cycling