{"product_id":"carrier-c4850c50aj05091-contactor-1k1tl0","title":"OEM Carrier 2-Pole 24V Coil Contactor for C4850C50AJ05091 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Contactor 2-Pole 24V Coil for Model C4850C50AJ05091\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C4850C50AJ05091\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by a low-voltage (24V) signal from the thermostat. When the thermostat calls for cooling, the 24V coil energizes, closing the contacts and sending line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioner that won't turn on — symptoms include a system that hums but never starts, pitted or burned contacts visible on inspection, or a unit that is completely unresponsive despite correct thermostat signals.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole configuration | 24V coil voltage | Rated for high-amperage compressor loads | OEM part numbers HN53CB115 and HN53HF122 — verify your existing part number before ordering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use factory-spec contact material and coil windings, ensuring precise pull-in voltage and long contact life. Generic contactors may use lower-grade alloy contacts that pit faster under load, 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 disconnect box and verify voltage is absent with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed by 3 PM local time ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC4850C50AJ05091\u003c\/strong\u003e packaged unit. This listing covers OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53HF122\u003c\/strong\u003e — check the part number printed on your existing contactor to confirm the correct variant. Not sure which fits your unit? Contact our fitment team before ordering and we'll verify compatibility at no charge.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909835870579,"sku":"CARRIE-C4850C50AJ05091-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909835903347,"sku":"CARRIE-C4850C50AJ05091-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_094440ab-d0f2-4a0b-8846-11d5f36957da.jpg?v=1782897234","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50aj05091-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}