{"product_id":"carrier-ca15na03000gaaaa-contactor-1iwxlq","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for CA15NA03000GAAAA","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model CA15NA03000GAAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor for the \u003cstrong\u003eCarrier CA15NA03000GAAAA\u003c\/strong\u003e split-system air conditioner, sold under OEM part number \u003cstrong\u003eHN51KC024\u003c\/strong\u003e. The contactor is the high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to power the compressor and condenser fan motor. When the contactor fails — whether from pitted contacts, a burned coil, or a stuck plunger — the result is an AC unit that hums but won't start, trips the breaker, or simply does nothing when the thermostat calls for cooling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole configuration | 24V AC coil voltage | 30–40 amp contact rating | Replaces OEM part number HN51KC024 | Factory-matched contact material and coil resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use factory-spec silver-alloy contact tips and precision-wound coils that meet Carrier's exact pull-in and drop-out voltage tolerances. Generic contactors often use lower-grade contact materials that pit and arc more rapidly, 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 breaker 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 wire connections before removing the old contactor. Note: contacts carry line voltage — exercise caution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before 3PM ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-specified for the \u003cstrong\u003eCarrier CA15NA03000GAAAA\u003c\/strong\u003e single-stage split-system condenser. Always confirm coil voltage and pole configuration on your unit's data plate before ordering. Our HVAC parts specialists are available to verify fitment before you purchase — no guesswork, no returns.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909650862451,"sku":"CARRIE-CA15NA03000GAAAA-CONTACTOR-HN51KC024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909650895219,"sku":"CARRIE-CA15NA03000GAAAA-CONTACTOR-HN51KC024-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-HN51KC024_0ffda344-58ff-46a4-9df7-4d7fc383a4a5.jpg?v=1782898890","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ca15na03000gaaaa-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}