Description
The Trane SFRLY90370 1/4″ SPDT Relay is an electromechanical switching component used to control low-voltage signals in higher-load electrical circuits. Installed within air handling units, heat pumps, and furnace control boards, it provides isolated switching between thermostats and compressors or fan motors. The relay acts as an interface element within control circuits, enabling safe activation of components based on 24 VAC commands in residential and commercial HVAC systems, supporting consistent system operation and reducing control circuit load. It is compatible with 50/60Hz control designs used in standard connections and control circuits.
