Its heavy-duty construction resists fatigue

3-inch long sensing bulb offers high thermal sensitivity and response time to shifting air temperatures

normally closed (NC) safety device that monitors the heat exchanger and inducer housing temperatures

As a manual reset limit switch

Can I use this to replace a 19" or 20" thermocouple

York S1-025-41319-000 Limit Switch Its heavy-duty construction resists fatigueThe York S1 025 41319 000 Limit Switch is a critical furnace high limit control engineered for precise thermal monitoring within York, Luxaire, and Coleman residential heating platforms. This OEM York replacement part features a factory calibrated fixed temperature setting, designed to open the electrical circuit at 165 degrees Fahrenheit and automatically reset once the plenum temperature cools to 125 degrees Fahrenheit, providing a standard 40