{"product_id":"payne-pa12na042000aaaa-contactor-1iwybu","title":"OEM Payne Contactor 24V 2-Pole for PA12NA042000AAAA — HN51KB024","description":"\u003ch1\u003eOEM Payne 2-Pole Contactor 24V Coil for Model PA12NA042000AAAA — HN51KB024\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor (part number \u003cstrong\u003eHN51KB024\u003c\/strong\u003e) for the \u003cstrong\u003ePayne PA12NA042000AAAA\u003c\/strong\u003e split-system air conditioner. The contactor is a high-voltage relay that acts as the primary switching device in your outdoor condensing unit — when the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, closing the high-voltage contacts that power the compressor and condenser fan motor. A failed contactor is one of the most common causes of a completely unresponsive outdoor unit. Symptoms include the AC not turning on at all, a buzzing or chattering sound from the disconnect box, or visible pitting and burning on the contactor's contact points.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole design | 24V AC coil voltage | Factory-rated amperage for 3.5-ton R-410A application | Direct OEM replacement per Payne part number HN51KB024\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor is manufactured to exact Carrier\/Payne factory specifications, ensuring proper coil pull-in voltage and contact rating. Generic contactors may use undersized contacts that arc, pit prematurely, and shorten compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect box and verify zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed by 3PM local time ship the same business day from our climate-controlled parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the \u003cstrong\u003ePayne PA12NA042000AAAA\u003c\/strong\u003e 3.5-ton split-system condenser. Verify your existing contactor's coil voltage and pole configuration against your unit's wiring diagram before ordering. If you have any fitment questions, our HVAC parts specialists are available to confirm compatibility before you purchase — we want to make sure you get the right part the first time.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62909185589619,"sku":"PAYNE-PA12NA042000AAAA-CONTACTOR-HN51KB024","price":68.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909185622387,"sku":"PAYNE-PA12NA042000AAAA-CONTACTOR-HN51KB024-GEN","price":60.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KB024_948b8b49-a369-41d2-a43e-4d6fc92f2ec2.jpg?v=1780718097","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa12na042000aaaa-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}