{"product_id":"oem-lennox-contactor-3-pole-240v-40a-x3663","title":"OEM Lennox Contactor 3-Pole 240V 40A — X3663","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003eX3663\u003c\/strong\u003e is a heavy-duty 3-pole contactor rated for 240 volts and 40 amps, designed to switch line power to the compressor and outdoor fan motor in higher-capacity Lennox air conditioning and heat pump systems. The 40-amp contact rating makes it well suited to larger-tonnage units that draw more current, providing clean, reliable make-and-break switching every time the system cycles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e burned or welded contacts that keep the condenser energized continuously, a humming or non-pulling-in coil, intermittent compressor starts, or scorched terminals and a burnt electrical smell at the outdoor unit. Contactor wear is normal over thousands of switching cycles, making this an expected maintenance replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e the Lennox \u003cstrong\u003eX3663\u003c\/strong\u003e matches the precise contact rating, coil specification, and physical footprint your equipment requires. Choosing genuine OEM guarantees correct current handling for larger loads, proper terminal fit, and maximum service life — safeguarding your compressor investment and keeping your Lennox warranty intact.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081081241971,"sku":"LNX-X3663","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-X3663.jpg?v=1783759878","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-contactor-3-pole-240v-40a-x3663","provider":"National HVAC Parts","version":"1.0","type":"link"}