3-inch length with a normally closed circuit for reliable operation. Automatic reset feature that opens on temperature rise at 140°F and closes on temperature drop at 110°F. Designed for compatibility with , Luxaire, , and Evcon equipment, ensuring easy installation. Engineered to prevent overheating and provide precise temperature management, extending equipment life. The S1-02529041005 genuine replacement furnace fan 3" safety high-temperature limit switch features a 3-inch length and a normally closed circuit, with automatic reset. It opens on temperature rise at 140°F and closes on temperature drop at 110°F, offering consistent and accurate thermal control in demanding furnace applications. The S1-02529041005 furnace fan 3" safety high-temperature limit switch is designed for broad for , Luxaire, , and Evcon equipment, functioning as a reliable replacement for part 025-29041-005 L140. It fits popular P4HUB12N08001A, P4HUA12N06401A, YCJF24S41S1 units and additional compatible systems, ensuring easy installation. This furnace fan limit switch is engineered to prevent overheating by providing precise and dependable temperature management. When furnace temperatures exceed the predefined threshold, it automatically interrupts heating, then resumes operation after the temperature drops to a safe range, helping to protect vital components and extend equipment life. Color: Red & Silver Material: Metal+Plastic Package Contents: 1*Furnace high temperature limit switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.