you preserve the factory specifications of the burner ignition system and ensure safe heating operation throughout the season

While it can switch higher voltage loads on the contact side up to its rated capacity

mixing brands can lead to improper calibration or failure

the T-4000-2142 ensures proper ventilation for internal bimetal sensing elements

The forged brass construction and nickel-plated stem provide the durability needed for closed-loop systems

Lennox 27K12 Limit Switch Els PW 17895 you preserve the factory specificationsThe Lennox 27K12 Limit Switch is a critical safety component designed for precise thermal regulation within various residential furnace and HVAC systems. Engineering as a normally closed (NC) switch, this automatic reset limit switch is tasked with monitoring heat exchanger temperatures to prevent hazardous overheating conditions. It features a specific 3 inch insertion depth, allowing for accurate probe placement within the supply plenum air stream.