{"product_id":"carrier-c4850c50ak02751-contactor-1k1tl0","title":"OEM Carrier 2-Pole Contactor 24V Coil for C4850C50AK02751 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50AK02751\u003c\/h1\u003e\u003cp\u003eThis OEM contactor is the factory-specified replacement for the \u003cstrong\u003eCarrier C4850C50AK02751\u003c\/strong\u003e packaged unit. The contactor acts as a high-voltage relay, using a low-voltage 24V signal from your thermostat to switch line-voltage power to the compressor and condenser fan motor. When the contactor fails, symptoms include an air conditioner that won't turn on despite a call for cooling, a unit that hums without the compressor engaging, or visible pitting and burning on the contact points during inspection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V coil voltage | Line voltage load contacts rated for compressor and fan motor duty | OEM part numbers HN53CB115, HN53HF122, HN53HG120 — factory-matched replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact points to factory specification, ensuring proper contact resistance and long service life. Generic contactors frequently use lower-grade alloys that pit faster under load, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/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, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Transfer wires one at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed by 3 PM local time ship same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC4850C50AK02751\u003c\/strong\u003e packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Verify coil voltage and pole configuration on your unit's data plate before ordering. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909832855923,"sku":"CARRIE-C4850C50AK02751-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909832888691,"sku":"CARRIE-C4850C50AK02751-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_5befb9be-0db3-42ef-80e0-8f84b5ea35b1.jpg?v=1782897585","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50ak02751-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}