{"product_id":"carrier-c4850c50aj03511-contactor-1k1tl0","title":"OEM Carrier Contactor 2-Pole 24V Coil for C4850C50AJ03511","description":"\u003ch1\u003eOEM Carrier Contactor 2-Pole 24V Coil for Model C4850C50AJ03511\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM contactor (part# \u003cstrong\u003eHN53CB115\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C50AJ03511\u003c\/strong\u003e packaged unit. The contactor is the high-voltage relay that receives a 24V signal from the thermostat or control board and closes the circuit to send line voltage to the compressor and condenser fan motor. When a contactor fails — whether from pitted contacts, a burned coil, or a stuck plunger — the result is an air conditioning system that won't start, hums without running, or trips the breaker repeatedly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | Rated for high-amperage compressor loads | Direct OEM replacement for part number HN53CB115\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use factory-spec contact materials and coil windings, ensuring correct pull-in voltage and contact resistance. Generic contactors may use thinner contact surfaces that pit faster under load, especially in high-cycle summer conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always disconnect power at the breaker and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wire terminations before removing the old contactor and 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 in materials and workmanship. Orders placed before cutoff ship 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\u003eC4850C50AJ03511\u003c\/strong\u003e packaged unit. Verify coil voltage and pole configuration on your unit's wiring diagram or data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists can confirm fitment — contact us before you order. \u003cstrong\u003eIn stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909842129267,"sku":"CARRIE-C4850C50AJ03511-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909842162035,"sku":"CARRIE-C4850C50AJ03511-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_dc83a2f4-c712-4301-94d5-030ade2199fa.jpg?v=1782904239","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50aj03511-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}