{"product_id":"carrier-c48a503051-contactor-1k1tl0","title":"OEM Carrier 2-Pole 40A Contactor 24V Coil for C48A503051 Packaged Unit","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C48A503051 Packaged Unit\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C48A503051\u003c\/strong\u003e packaged unit. 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. A failed contactor is one of the most common reasons a packaged unit won't turn on at all, or why the compressor hums but never engages. Pitted, burned, or stuck contacts are telltale signs it's time for a replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil | 30–40A contact rating | Direct OEM replacement — matches factory wiring and mounting footprint exactly. Replaces OEM part numbers HN53CB115, HN53CD115, HN53HF122, and HN53HG120.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact tips rated for thousands of switching cycles. Generic contactors often use lower-grade contact materials that pit and weld prematurely, leading to compressor failure or nuisance lockouts within a single cooling season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect and lock out power before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Line-voltage terminals must be torqued to spec to prevent arcing.\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 warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct replacement for the \u003cstrong\u003eCarrier C48A503051\u003c\/strong\u003e packaged unit. Cross-references OEM part numbers HN53CB115, HN53CD115, HN53HF122, and HN53HG120 — verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy. \u003cstrong\u003eOrder today and your part ships the same day.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909733306739,"sku":"CARRIE-C48A503051-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909733339507,"sku":"CARRIE-C48A503051-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_e3df28cd-acf6-4864-83ac-17d5a95e615d.jpg?v=1782897532","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a503051-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}