{"product_id":"carrier-c50a303512-contactor-1k1tl0","title":"OEM Carrier Contactor 2-Pole 24V Coil for C50A303512","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C50A303512\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified switching relay for the \u003cstrong\u003eCarrier C50A303512\u003c\/strong\u003e packaged unit. The contactor serves as the high-voltage relay that closes the circuit to the compressor and condenser fan motor when the thermostat calls for cooling. When it fails — due to pitted contacts, a burned coil, or contacts welded shut — the most common symptoms are an AC unit that won't turn on at all, one that runs continuously regardless of thermostat commands, or a unit that hums without fully starting. Replaces OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53CD115\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole configuration | 24V AC coil voltage | Factory-rated amperage for Carrier C50A303512 | Direct OEM replacement — no modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors feature silver-alloy contact tips rated to factory tolerances, ensuring reliable switching across thousands of cycles. Generic aftermarket units often use lower-grade contact materials that pit and fail prematurely, especially under high-load summer conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all 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 wiring connections before removing the old contactor to simplify reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship the same business day from our warehouse — get your system back online fast.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eC50A303512\u003c\/strong\u003e commercial packaged unit. Cross-references OEM part numbers HN53CB115 and HN53CD115. Always confirm coil voltage and pole configuration on your unit's data plate before ordering. Our fitment specialists are available to verify compatibility before you buy — don't guess on a critical switching component.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909702177139,"sku":"CARRIE-C50A303512-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909702209907,"sku":"CARRIE-C50A303512-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_c78b5229-a333-49f1-b02d-8a6631a285d5.jpg?v=1782904436","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a303512-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}