Always verify local plumbing codes regarding lead-free requirements for your specific potable water application

ensuring a sealed system that prevents unfiltered air leakage

and inert gas service

compatible with most industrial furnace control boards

current operating stage

Modine 5H0749330003 Relay 320720-756 Always verify local plumbing codesThe Modine 5H0749330003 Relay is a heavy duty, OEM spec electromagnetic switch engineered for 120V heating systems. This industrial unit heater relay serves as the primary interface between low power control signals and high power blower or burner circuits, ensuring seamless ignition and fan sequencing. As a genuine Modine replacement part, it is listed under cross reference R4222D1039, maintaining the precise electrical tolerances required for Modine