OEM Lennox Contactor — 60M12

The genuine OEM Lennox 60M12 contactor is the high-current electrical switch that powers your outdoor unit's compressor and condenser fan motor on and off in response to the thermostat's cooling call. Rated to Lennox's exact voltage, amperage, and coil specifications, it handles thousands of switching cycles while delivering clean, reliable power to the components that drive your system's cooling capacity.

A worn contactor commonly causes the outdoor unit to fail to start, chatter or buzz loudly, or run continuously because the contacts weld shut. You may notice pitted or burned contacts, a hard-starting or non-responsive condenser, or the fan and compressor cutting out intermittently. Because it carries heavy load every cycle, the contactor is one of the most frequently replaced parts in a condensing unit.

OEM is important because the 60M12 matches your Lennox unit's contact configuration, coil voltage, and current rating — an undersized or mismatched contactor can overheat, weld, or fail prematurely, risking compressor damage. The factory-spec part installs directly onto the existing terminals for a precise fit and restores dependable, safe switching so your Lennox condensing unit cools consistently.