Reliable Output: Provides a consistent 24V step-down transformer performance for contactors

which is a frequent cause of electrical shorts and mechanical seizure

Direct OEM Compatibility: Ensures seamless fitment and electrical calibration for York residential gas furnaces without the need for field modifications

operating efficiently in temperatures ranging from -40°F to 150°F

typically found in MS and MB series units

York S1-024-19082-039 Sequencer Relay Reliable Output: Provides a consistentThe York S1 024 19082 039 Sequencer Relay is a mission critical 24V electric heat sequencer engineered for precise staging of heating elements and blower motors in residential air handlers and furnaces. This single pole double throw (SPDT) component features a thermal bimetal disc design, providing reliable M1 M2 on delay timings to prevent high amperage spikes during initial startup. Designed as a direct O. E. M. replacement for York heating systems,