York S1-025-22273-002 Limit Switch This specific Source 1 flame

This specific Source 1 flame sensor is optimized for model series starting with DGAA and DGAH

or a "bottomed out" appearance in the pulley

this DIN rail end clip prevents lateral sliding of terminal blocks

Can this SPDT switch be used on both 3-pole and 4-pole York contactors

Is this compatible with LP or Natural Gas systems

York S1-025-22273-002 Limit Switch This specific Source 1 flameThe York S1 025 22273 002 Limit Switch is a critical fixed temperature safety control engineered for York, Luxaire, and Coleman furnace assemblies. This automatic reset limit switch features a 140F cut out and a 100F cut in differential, ensuring the heat exchanger does not exceed safe operating thermal limits. As a genuine OEM York furnace part, it provides the precise calibration required for proper high limit protection, preventing system cycling