OEM Lennox Armstrong Ducane Contactor Relay 1 Pole 30 Amp Replaces 10F73
OEM Lennox Armstrong Ducane Contactor Relay 1 Pole 30 Amp Replaces 10F73 This is a brand new OEM Lennox Armstrong Ducane upgraded Contactor Relay 1 Pole 30 Amp. It replaces the part numbers listed below. Function: A contactor form of a relay. Relays are switches that open and close circuits electrically. In most HVAC equipment a low voltage coil relay (24 vac) is energized in order to open or close a higher voltage (usually 120-240) circuit. Replaces Old Part #s: 10F73 Repair Difficulty Level: Partial List of Units that Use This Item: Hit Ctrl + F and enter your model number for a quick search!