York S1-025-51476-000 Auto Switch Limit 120°F-150°F

The York S1-025-51476-000 Auto Limit Switch is a temperature control component used to regulate circuit operation on preset thermal conditions. It operates with a closing temperature of 120F and an opening temperature of 150F, allowing controlled switching as system temperatures rise or fall. This switch is commonly used in furnace assemblies, air handlers, and burner control sections where temperature-based circuit control is required. It is positioned near heat exchange areas to detect temperature variation and trigger electrical switching for regulated operation. Within HVAC systems, its structure supports stable integration into compatible control configurations.