Pay in 4 interest-free payments of $8.30 Learn more
Ships within 48 hours · Estimated delivery Sep 2 - Sep 7
Using this component for high-voltage loads can result in insulation failure and system damage
the 64391 kit includes the bracket and the specialized high-temperature tape required for the conversion
Broad Interchangeability: Replaces multiple previous versions
This component meets stringent EIA-456-A industry standards
Lennox 66J78 Limit Switch Els PW 17895 Using this component for high-voltageExperienced HVAC contractors recognize the Lennox 66J78 Limit Switch as a critical safety component for maintaining furnace integrity and preventing heat exchanger damage. This OEM Lennox replacement part is a 36T series disc style control designed for High Limit or Secondary Rollout applications. It features a Normally Closed (NC) circuit that opens on temperature rise to interrupt the heating cycle if internal temperatures exceed safe operating
