{"product_id":"carrier-c4850c50ak02051-contactor-1k1tl0","title":"OEM Carrier Contactor 2-Pole 24V Coil Definite Purpose Contactor for C4850C50AK02051 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50AK02051\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C4850C50AK02051\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by a 24V signal from your thermostat or control board. When you call for cooling, the contactor closes its poles to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioning system that powers on but refuses to cool — you may hear a faint click or buzzing with no compressor engagement, or the unit may not respond at all. 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 design | 24V coil voltage | Factory-rated amperage for Carrier packaged units | Silver-alloy contact tips for long service life and low resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor is manufactured to exact Carrier specifications. Aftermarket contactors often use lower-grade contact materials that pit and arc more quickly, leading to premature failure and potential compressor damage caused by voltage drop across worn contacts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power at the disconnect box and verify voltage is absent 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 removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. 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 for the Carrier \u003cstrong\u003eC4850C50AK02051\u003c\/strong\u003e packaged unit. Verify coil voltage (24V) and pole configuration against your unit's wiring diagram and data plate before ordering. This part replaces OEM numbers HN53CB115 and HN53HF122. Our parts specialists are available to confirm fitment prior to purchase — don't guess on a high-voltage component. Order today and enjoy same-day shipping on all in-stock HVAC parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909834428787,"sku":"CARRIE-C4850C50AK02051-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909834461555,"sku":"CARRIE-C4850C50AK02051-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_e3b94567-1416-41bb-af5a-cc521a14f9ad.jpg?v=1782904132","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50ak02051-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}