{"product_id":"oem-lennox-contactor-3-pole-40a-24v-coil-19j68","title":"OEM Lennox Contactor 3-Pole 40A 24V Coil — 19J68","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e19J68\u003c\/strong\u003e is a FirstChoice triple-pole (3-pole) contactor rated at 40 amps with a 24-volt control coil. Three-pole contactors like this switch all three legs of power to three-phase compressors and larger condensing units, providing complete circuit disconnection and reliable engagement each time the thermostat calls for cooling.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e When the \u003cstrong\u003e19J68\u003c\/strong\u003e begins to fail, you may see the unit fail to start, hear a persistent buzzing or chattering from the contactor, or find burned, pitted, or corroded contacts on one or more poles. Because it switches three legs, a single failed pole can cause single-phasing, which can quickly overheat and destroy a three-phase compressor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The Lennox \u003cstrong\u003e19J68\u003c\/strong\u003e is engineered to the precise coil voltage, contact rating, and pole configuration your equipment requires. Substituting a mismatched contactor risks single-phasing, chatter, and coil burnout that can lead to catastrophic compressor failure. Installing the correct OEM FirstChoice part ensures dependable switching across all three poles and protects your Lennox investment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081081110899,"sku":"LNX-19J68","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-19J68.jpg?v=1783759888","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-contactor-3-pole-40a-24v-coil-19j68","provider":"National HVAC Parts","version":"1.0","type":"link"}