If you are switching the relay using a standard 24V thermostat signal

OEM Compatibility: Specifically designed as a direct replacement for Lennox 43K5301 and 43K8801

Manufactured from high-grade brass to withstand the thermal stress of continuous combustion cycles

Durable Construction: Built to withstand the harsh environment of a furnace burner box or plenum

Key Benefits Precise Thermal Regulation: Actuates between 25°F and 41°F to maintain specific environmental conditions in forced-air systems

ASCO 290411-001 Din Connector If you are switching theThe ASCO 290411 001 DIN Connector is a standard 18mm Form A spade plug designed for reliable electrical termination in industrial solenoid valve applications. Constructed from glass fiber reinforced polyamide, this non lighted connector provides a rigid, high impact housing suitable for demanding HVACR and process environments. It features an IP65 enclosure rating, ensuring protection against moisture entry and washdown when properly installed with