{"product_id":"oem-lennox-contactor-3-pole-120v-60a-77x57","title":"OEM Lennox Contactor 3-Pole 120V 60A — 77X57","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e77X57\u003c\/strong\u003e is a three-pole contactor with a 120-volt control coil rated at 60 amps per pole. This heavy-duty switching relay energizes all three legs of high-voltage power to the compressor and outdoor fan in Lennox equipment that uses a line-voltage (120V) control circuit, handling the full load each time the system calls for cooling.\u003c\/p\u003e\u003cp\u003eWarning signs of a worn contactor include a persistent buzzing or chattering coil, contacts that weld shut and keep the compressor running continuously, burnt or pitted terminals, and a unit that won't start on demand. With a three-pole design, a single failed pole can cause single-phasing that overheats and damages the compressor motor.\u003c\/p\u003e\u003cp\u003eBecause the \u003cstrong\u003e77X57\u003c\/strong\u003e carries a 60-amp rating and a 120V coil, matching the OEM specification is essential — the wrong coil voltage won't pull in, and an under-rated contactor will fail early under load. This factory part ensures the exact coil voltage, amperage, and three-pole layout your Lennox system requires for reliable, full-rated performance.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081081635187,"sku":"LNX-77X57","price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-3pole-LNX-77X57.jpg?v=1783759876","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-contactor-3-pole-120v-60a-77x57","provider":"National HVAC Parts","version":"1.0","type":"link"}