{"product_id":"carrier-ha1bjx036000abaa-contactor-1iwybu","title":"OEM Carrier 2-Pole Contactor 24V Coil for HA1BJX036000ABAA","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model HA1BJX036000ABAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor (part number \u003cstrong\u003eHN51KB024\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier HA1BJX036000ABAA\u003c\/strong\u003e split-system air conditioner. The contactor is a high-voltage relay controlled by the thermostat's 24V signal. When your thermostat calls for cooling, the contactor closes its contacts to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioner that hums but won't start, runs constantly without cycling off, or simply will not turn on at all. Pitted or burned contacts are a telltale sign of contactor failure and can be visually confirmed during inspection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for 3-ton (036) class condensers | Direct OEM replacement per Carrier part number HN51KB024\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit meets Carrier's exact coil pull-in voltage and contact ampacity specs. Aftermarket contactors frequently use lower-grade contact material that pits faster under high-cycle loads, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removal to ensure correct reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before our same-day shipping cutoff ship from our warehouse today.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier HA1BJX036000ABAA\u003c\/strong\u003e condenser unit. Always verify your unit's data plate voltage and amperage ratings match this contactor's specifications before installation. Our fitment team is available to confirm compatibility before you order — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909362340211,"sku":"CARRIE-HA1BJX036000ABAA-CONTACTOR-HN51KB024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909362372979,"sku":"CARRIE-HA1BJX036000ABAA-CONTACTOR-HN51KB024-GEN","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-2pole-HN51KB024.jpg?v=1782897660","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ha1bjx036000abaa-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}