Lennox 46K08 Limit switch 321142-301 High-Pressure Reliability: Rated for severe

High-Pressure Reliability: Rated for severe duty with a 300 psi maximum working pressure and a wide temperature range of 35°F to 280°F

This unit serves as the direct replacement for 8403-058 and 8403-059

or an audible "humming" or "chattering" sound

Direct Replacement: Replaces obsolete part number PLT3026

When installing reversing valves

Lennox 46K08 Limit switch 321142-301 High-Pressure Reliability: Rated for severeThe Lennox 46K08 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Engineered for high reliability applications, this auto reset limit switch operates within a predefined 140 160F temperature range, ensuring the heat exchanger does not exceed safe operating limits. When the plenum temperature reaches the high end threshold, the switch opens the electrical circuit to