{"product_id":"carrier-c4850c48ay03551-contactor-1k1tl0","title":"OEM Carrier Contactor 2-Pole 24V for C4850C48AY03551","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C48AY03551\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified high-voltage relay for the \u003cstrong\u003eCarrier C4850C48AY03551\u003c\/strong\u003e packaged unit. The contactor serves as the primary switching device that allows the 24V thermostat signal to energize the compressor and condenser fan motor at line voltage. When the contactor fails — due to pitted or burned contacts, a welded contact, or a failed coil — the system will either refuse to start entirely, run continuously without shutting off, or trip the breaker repeatedly. 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 AC coil voltage | Factory-rated amperage for Carrier C4850C48AY03551 | Silver-alloy contact surfaces for long service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor meets Carrier's exact coil pull-in voltage and contact gap specifications. Aftermarket contactors frequently use lower-grade contact alloys that pit and arc prematurely, leading to callbacks and compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at both the disconnect and breaker panel before beginning. 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 units ship same business day when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC4850C48AY03551\u003c\/strong\u003e packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120 — verify your existing part number against this list before ordering. Not sure if this is the right fit? Our HVAC parts specialists confirm fitment before every order. \u003cstrong\u003eOrder now and get same-day shipping from our stocked warehouse.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909882827123,"sku":"CARRIE-C4850C48AY03551-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909882859891,"sku":"CARRIE-C4850C48AY03551-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_80d2f07c-e79f-447f-b18b-1199fbabdb22.jpg?v=1782905026","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48ay03551-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}