{"product_id":"carrier-ca13na0300ngaaba-contactor-1iwxlq","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for CA13NA0300NGAABA","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model CA13NA0300NGAABA\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM replacement contactor (part number \u003cstrong\u003eHN51KC024\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier CA13NA0300NGAABA\u003c\/strong\u003e split-system air conditioner. The contactor is a high-voltage relay that bridges the gap between the low-voltage thermostat signal and the high-voltage power supply to the compressor and condenser fan motor. When the contactor fails — due to pitted or burnt contacts, a stuck plunger, or a failed coil — the outdoor unit simply will not energize, even when the thermostat is calling for cooling. You may hear the indoor air handler running while the outdoor unit remains completely silent.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole design | 24V AC coil voltage | 30–40 amp contact rating | Direct OEM replacement for part number HN51KC024 | Factory-matched coil pull-in voltage for reliable switching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors feature silver-alloy contact tips rated for thousands of switching cycles under load. Generic contactors often use inferior contact materials that pit and arc prematurely, shortening compressor life and causing nuisance lockouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect and lock out all power before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter. Always photograph existing wiring before removing the old contactor. Double-check line and load terminal orientation before re-energizing.\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 cut-off ship the same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eCA13NA0300NGAABA\u003c\/strong\u003e 2.5-ton split-system air conditioner. Verify the OEM part number HN51KC024 on your existing contactor's label or equipment data plate before ordering to confirm fitment. Not sure? Our HVAC parts specialists verify compatibility before every order — reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909657678195,"sku":"CARRIE-CA13NA0300NGAABA-CONTACTOR-HN51KC024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909657710963,"sku":"CARRIE-CA13NA0300NGAABA-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_02e85ae0-5b2b-4d78-9d16-97cde88201a5.jpg?v=1782898867","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ca13na0300ngaaba-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}