{"product_id":"carrier-c4850c50aj03051-contactor-1k1tl0","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for C4850C50AJ03051 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor for Model C4850C50AJ03051\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C4850C50AJ03051\u003c\/strong\u003e packaged unit. The contactor acts as a high-voltage relay, receiving a 24V signal from the control board to close its contacts and send line voltage to the compressor and condenser fan motor. When a contactor fails — whether from pitted contacts, a burned coil, or contacts welded shut — your system will either refuse to start entirely, run continuously without shutting off, or trip the circuit breaker. Replaces OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53HF122\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole configuration | 24V control coil | 30–40A contact rating | Direct OEM replacement with factory-matched coil pull-in voltage and contact plating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact tips rated for thousands of switching cycles. Generic contactors frequently use lower-grade alloys that pit and weld prematurely, leading to compressor damage or nuisance lockouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the disconnect box AND the breaker panel before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wire positions before removal. Note wire gauge and terminal positions carefully — incorrect wiring can damage the control board.\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 cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for \u003cstrong\u003eCarrier C4850C50AJ03051\u003c\/strong\u003e packaged units. Cross-references OEM part numbers HN53CB115 and HN53HF122. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — no guesswork, no returns.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909842719091,"sku":"CARRIE-C4850C50AJ03051-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909842751859,"sku":"CARRIE-C4850C50AJ03051-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_62f4105d-e6b6-4fec-a0d0-6bc239957d15.jpg?v=1782898792","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50aj03051-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}