{"product_id":"carrier-c50a302521-contactor-1k1tl0","title":"OEM Carrier Contactor 2-Pole 24V Coil for C50A302521","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor for Model C50A302521 Packaged Unit\u003c\/h1\u003e\u003cp\u003eThis OEM contactor is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A302521\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay that closes when the thermostat sends a 24V signal, allowing line voltage to flow to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a welded\/stuck plunger — your system may fail to start entirely, run continuously without shutting off, or trip the breaker repeatedly. OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53CD115\u003c\/strong\u003e are the factory-authorized replacements for this application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V coil voltage | Rated for standard residential and light-commercial amperage loads | Direct OEM replacement with factory-matched contact gap and coil pull-in voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact tips that resist pitting and arcing far longer than generic substitutes. A failed generic contactor can weld shut, causing the compressor to run non-stop and void your equipment warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring terminals before disconnecting. Swap one wire at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. 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 Fits Carrier model \u003cstrong\u003eC50A302521\u003c\/strong\u003e packaged unit. Cross-references OEM part numbers HN53CB115 and HN53CD115. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to confirm compatibility — just reach out before you buy. \u003cstrong\u003eIn stock and ready to ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909706174835,"sku":"CARRIE-C50A302521-CONTACTOR-HN53CB115","price":40.8,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909706207603,"sku":"CARRIE-C50A302521-CONTACTOR-HN53CB115-GEN","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-2pole-HN53CB115_53e44828-b9e4-4ee4-aff2-59a1aacab1e9.jpg?v=1782904429","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a302521-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}