{"product_id":"carrier-ha1cjx024000aaaa-contactor-1iwybu","title":"OEM Carrier Contactor 24V Coil 2-Pole for HA1CJX024000AAAA","description":"\u003ch1\u003eOEM Carrier Contactor 2-Pole 24V Coil for Model HA1CJX024000AAAA\u003c\/h1\u003e\u003cp\u003eThis is the OEM replacement contactor (part number \u003cstrong\u003eHN51KB024\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier HA1CJX024000AAAA\u003c\/strong\u003e split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to send 240V power to the compressor and condenser fan motor. When the contactor fails — whether from pitted contacts, a stuck plunger, or a burned coil — your outdoor unit will refuse to energize, leaving the air handler running but no cooling taking place. In some cases, a failed contactor causes the unit to run continuously without cycling off.\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 Carrier HA1CJX024000AAAA | OEM part number HN51KB024 — direct factory replacement, no modification required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors feature silver-alloy contacts rated to factory specifications, ensuring proper arc suppression and long service life. Generic contactors frequently use inferior contact materials that pit and weld faster under load, increasing the risk of a locked-on condition and compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Transfer wires one at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This contactor is factory-specified for the Carrier \u003cstrong\u003eHA1CJX024000AAAA\u003c\/strong\u003e split-system condenser. Always verify coil voltage and pole configuration against your unit's wiring diagram and data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — reach out via chat or phone.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909357621619,"sku":"CARRIE-HA1CJX024000AAAA-CONTACTOR-HN51KB024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909357654387,"sku":"CARRIE-HA1CJX024000AAAA-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_d04a8a59-c84f-4428-9e7b-e9aa338cf96b.jpg?v=1782905291","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ha1cjx024000aaaa-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}