Reliable Switching: High-quality SPNO contacts provide clean signal transmission to the integrated furnace control (IFC)

Check your specific Maxitrol spring selection chart to ensure the physical dimensions match your regulator's internal tower

As a primary switching relay

maintaining the integrity of the original safety circuit

meeting stringent safety standards for North American HVAC systems

York S1-2940-3551 Relay Reliable Switching: High-quality SPNO contactsThe York S1 2940 3551 Relay is a specialized 24V 3 pole plug in heat relay engineered for precise switching in residential and light commercial HVAC systems. This HVAC contactor relay functions as a critical interface between low voltage control circuits and high voltage heating components, ensuring reliable load management. Designed for 24VAC coil operation, the S1 2940 3551 features a robust 3 pole configuration that allows for multi circuit control