{"product_id":"carrier-c4850c50aj03611-contactor-1k1tl0","title":"OEM Carrier 2-Pole 40A Contactor 24V Coil for C4850C50AJ03611 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor HN53CB115 for Model C4850C50AJ03611\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor (part number \u003cstrong\u003eHN53CB115\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C50AJ03611\u003c\/strong\u003e packaged unit. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to send line voltage to the compressor and condenser fan motor. When a contactor fails, the most common symptoms include the system failing to turn on at all, the compressor humming but not starting, or visible pitting and burning on the contact points. Left unaddressed, a worn contactor can cause compressor damage — making early replacement critical.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole configuration | 24V AC coil voltage | 40A rated contacts | Direct OEM replacement for part number HN53CB115 | Factory-matched construction for reliable switching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor uses factory-spec contact materials and coil windings, ensuring proper pull-in voltage and extended contact life. Generic contactors often use lower-grade contact alloys that pit and weld faster, increasing the risk of compressor failure or a contactor stuck in the closed position.\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 servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor to ensure correct reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eC4850C50AJ03611\u003c\/strong\u003e packaged unit. Always verify coil voltage and pole configuration against your unit's wiring diagram and data plate before ordering. Our fitment team is available to confirm compatibility before you purchase — same-day shipping available on all in-stock orders.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909840720243,"sku":"CARRIE-C4850C50AJ03611-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909840753011,"sku":"CARRIE-C4850C50AJ03611-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_d382e8a0-eaf4-42cf-8742-6679a7c19ceb.jpg?v=1782897527","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50aj03611-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}