{"product_id":"carrier-hc1ajx024000aaaa-contactor-1iwybu","title":"OEM Carrier Contactor 2-Pole 24V Coil for HC1AJX024000AAAA","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model HC1AJX024000AAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor (part number \u003cstrong\u003eHN51KB024\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier HC1AJX024000AAAA\u003c\/strong\u003e split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from the thermostat control circuit and closes to send 240V line power to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — your system will either refuse to start, run continuously without shutting off, or trip the breaker repeatedly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V coil voltage | 240V line voltage | Factory-matched contact rating | OEM part number HN51KB024\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor is manufactured to Carrier's exact contact gap, coil pull-in voltage, and current rating specifications. Aftermarket units frequently use inferior contact alloys that pit quickly under load, shortening service life and causing intermittent failures.\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: flat-head 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 3 PM ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the Carrier \u003cstrong\u003eHC1AJX024000AAAA\u003c\/strong\u003e split-system air conditioner. Always verify coil voltage and pole configuration against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — no guesswork, no returns.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909342974323,"sku":"CARRIE-HC1AJX024000AAAA-CONTACTOR-HN51KB024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909343007091,"sku":"CARRIE-HC1AJX024000AAAA-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_063555e6-3c4e-4b1b-b40e-07519fdd51de.jpg?v=1782904802","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hc1ajx024000aaaa-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}