{"product_id":"carrier-c4850c48ay03651-contactor-1k1tl0","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for C4850C48AY03651","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C48AY03651\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified high-voltage relay for the \u003cstrong\u003eCarrier C4850C48AY03651\u003c\/strong\u003e packaged unit. The contactor acts as the primary switching device that energizes the compressor and condenser fan motor when the thermostat sends a 24V signal. A failed contactor is one of the most common reasons a system appears completely unresponsive — symptoms include an AC unit that hums but won't start, fails to cool, or shows visible pitting and burning on the contact points. Replaces OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e, \u003cstrong\u003eHN53HF122\u003c\/strong\u003e, and \u003cstrong\u003eHN53HG120\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole configuration | 24V coil voltage | 40A rated contacts | Factory-matched coil pull-in voltage for reliable thermostat triggering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact tips rated for the exact amperage draw of your Carrier system. Generic contactors often use lower-grade contacts that pit and arc faster, leading to repeat failures within a single season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before beginning. Tools needed: 1\/4\" and 5\/16\" nut drivers, flathead screwdriver, multimeter. Photograph all wire positions before disconnecting — incorrect wiring can damage the control board. Discharge any capacitors in the unit before working near high-voltage terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship 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 \u003cstrong\u003eCarrier C4850C48AY03651\u003c\/strong\u003e packaged unit and cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to confirm compatibility — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909882171763,"sku":"CARRIE-C4850C48AY03651-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909882204531,"sku":"CARRIE-C4850C48AY03651-CONTACTOR-HN53CB115-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-HN53CB115_c1763844-fadd-426f-b9c2-76287fc466ec.jpg?v=1782898762","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48ay03651-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}