{"product_id":"carrier-c4850c50aj04051-contactor-1k1tl0","title":"OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for C4850C50AJ04051 — Ships Today","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil 30A for Model C4850C50AJ04051\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C4850C50AJ04051\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by your thermostat's 24V signal — when the thermostat 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 turn on, runs continuously without cycling off, or produces a loud chattering or buzzing noise from the condenser cabinet.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | 30A rating | Compatible OEM part numbers: HN53CB115, HN53HF122, HN53HG120 | Replaces all three factory variants for this model\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contacts rated to factory specifications, ensuring proper arc suppression and long service life. Generic contactors frequently use inferior contact materials that pit and burn prematurely, 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 disconnect power at the disconnect box and verify zero voltage with a multimeter before beginning work. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting any terminals to ensure correct reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-matched for the Carrier \u003cstrong\u003eC4850C50AJ04051\u003c\/strong\u003e packaged unit. This listing covers OEM part numbers HN53CB115, HN53HF122, and HN53HG120 — all three are approved replacements for this model. Verify your existing contactor's pole count, coil voltage, and amperage rating from the data plate before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping on all in-stock orders.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909839835507,"sku":"CARRIE-C4850C50AJ04051-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909839868275,"sku":"CARRIE-C4850C50AJ04051-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_b6252340-3425-4b1d-8358-1d6a469a22d2.jpg?v=1782897419","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50aj04051-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}