{"product_id":"carrier-c4850c48ay04021-contactor-1k1tl0","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for C4850C48AY04021","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor for Model C4850C48AY04021 — HN53CB115 \/ HN53HF122\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor for the \u003cstrong\u003eCarrier C4850C48AY04021\u003c\/strong\u003e packaged or split-system unit. The contactor is a high-voltage relay controlled by your thermostat's 24V signal — when the stat calls for cooling, the contactor closes and sends line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an AC system won't respond at all: you may hear the indoor air handler running but nothing happens outside, or the unit hums without fully engaging. 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 AC coil voltage | 30–40 amp contact rating | Direct OEM factory replacement | Compatible with R-410A systems\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 units often use lower-grade alloys that pit and burn faster, leading to repeat failures within a single cooling season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at both the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdriver, 1\/4\" nut driver, multimeter, needle-nose pliers. Photograph all wiring before disconnecting. Coil wires and line\/load wires must be matched correctly to avoid damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct replacement for \u003cstrong\u003eCarrier model C4850C48AY04021\u003c\/strong\u003e. Cross-references OEM part numbers HN53CB115 and HN53HF122. Always confirm pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our fitment team is available to verify compatibility — just reach out before you buy. Order today and get your system back online fast with same-day shipping.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909881221491,"sku":"CARRIE-C4850C48AY04021-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909881254259,"sku":"CARRIE-C4850C48AY04021-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_6737f697-b084-47cc-bf81-1d81c803791f.jpg?v=1782898765","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48ay04021-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}