though your control circuit will provide the line or low voltage to be switched across the contacts

Is the Kele ST-S3E-XME compatible with my existing BAS controller

Critical Safety Protection: Prevents hazardous overheating conditions by interrupting the burner circuit if airflow is restricted

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

and Square D 8910DP41V14

Modine 5H0749330003 Relay 320720-756 though your control circuit willThe 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