York S1-025-27747-002 Temp Control and PGB series furnaces

and PGB series furnaces

This auto reset limit switch features a 3-inch insertion depth and is factory-calibrated for an L200-40 configuration

reduced torque

High Thermal Strength: Constructed from high-purity silicon carbide to provide stable electrical resistance and resist premature burn-out

and MI40T residential series

York S1-025-27747-002 Temp Control and PGB series furnacesThe York S1 025 27747 002 serves as a high integrity safety component engineered for precise thermal regulation within furnace and air handler assemblies. This manual reset high limit switch is factory calibrated to open at 200 degrees Fahrenheit, functioning as a primary fail safe to interrupt the burner circuit or unit operation if internal temperatures exceed engineered safety thresholds. As a critical HVAC safety control, it prevents heat