{"product_id":"carrier-c50a405021-contactor-1k1s1j","title":"OEM Carrier Contactor 2-Pole 24V Coil for C50A405021","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C50A405021\u003c\/h1\u003e\u003cp\u003eThis OEM contactor is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A405021\u003c\/strong\u003e packaged unit. The contactor is a 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 the contactor fails — due to worn or pitted contacts, a burned coil, or contacts that stick open or closed — the system will either fail to start entirely, run continuously without shutting off, or trip a breaker. This is one of the most commonly replaced components in any packaged HVAC system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | Replaces OEM part numbers \u003cstrong\u003eHN53CD115\u003c\/strong\u003e and \u003cstrong\u003eHN53HF122\u003c\/strong\u003e | Factory-matched contact ratings for Carrier C50A405021 packaged equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor uses factory-grade silver-alloy contact tips rated for the exact load of your C50A405021 unit. Aftermarket contactors often use inferior contact materials that pit and corrode faster, 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 breaker panel 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 are present — exercise extreme caution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for \u003cstrong\u003eCarrier model C50A405021\u003c\/strong\u003e packaged units. Cross-references OEM part numbers HN53CD115 and HN53HF122. Verify your existing contactor's pole count and coil voltage against your unit's data plate before ordering. Our fitment specialists are available to confirm compatibility before you buy — same-day shipping means your system is back up and running fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909681009011,"sku":"CARRIE-C50A405021-CONTACTOR-HN53CD115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909681041779,"sku":"CARRIE-C50A405021-CONTACTOR-HN53CD115-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-HN53CD115_65e99cbb-648b-4f92-80d1-4626a7cce85b.jpg?v=1782904455","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a405021-contactor-1k1s1j","provider":"National HVAC Parts","version":"1.0","type":"link"}