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Lennox 51W15 is an OEM interlock switch (102317-01) for HVAC equipment that provides a safety interlock function. The compact switch measures approximately 1.7 x 1.7 x 0.5 inches and is listed under item code LNX51W15. It is used on furnaces and air handlers to break the electrical circuit to the blower motor and control board when a service panel is removed and can cut 24V or 120V power.
Genuine Lennox interlock switch MPN 51W15; compact form factor; interrupts 24V/120V power to blower and control board; replaces legacy parts 58H33 and 70L63.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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