{"product_id":"carrier-c4850c50ay02591-contactor-1k1tl0","title":"OEM Carrier 2-Pole 24V Coil Definite Purpose 40A Contactor for C4850C50AY02591 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50AY02591\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor for the \u003cstrong\u003eCarrier C4850C50AY02591\u003c\/strong\u003e packaged unit, carrying OEM part number \u003cstrong\u003eHN53CB115\u003c\/strong\u003e. The contactor is a high-voltage relay controlled by your thermostat's 24V signal — when the call for cooling comes in, the contactor closes and sends line voltage to the compressor and condenser fan motor. When it fails, the result is an AC system that simply won't turn on, or one that buzzes and chatters without the compressor ever engaging. Pitted or burned contacts are the most common cause of warm air complaints during peak cooling season.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil | 30–40A contact rating | Heavy-duty silver alloy contacts | Direct OEM replacement for HN53CB115\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HN53CB115 contactor is wound and rated to Carrier's exact factory specifications, ensuring proper coil pull-in voltage and contact longevity. Generic contactors often use thinner contact materials that pit faster under high-amperage compressor loads, leading to repeat failures within one to two seasons.\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 screwdrivers, needle-nose pliers, multimeter to confirm de-energized. Photograph all wiring before disconnecting. Swap one wire at a time to avoid miswiring. Takes most technicians 15–30 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty. In-stock units ship the same business day from our fulfillment warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the \u003cstrong\u003eCarrier C4850C50AY02591\u003c\/strong\u003e packaged unit. Verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before your order ships — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909813227891,"sku":"CARRIE-C4850C50AY02591-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909813260659,"sku":"CARRIE-C4850C50AY02591-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_2d6c6e0d-c7a0-45df-b27a-cb62dbb4e0e7.jpg?v=1782897261","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50ay02591-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}