{"product_id":"carrier-c48a503012-contactor-1k1tl0","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for C48A503012","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C48A503012\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified high-voltage relay for the \u003cstrong\u003eCarrier C48A503012\u003c\/strong\u003e packaged unit. The contactor acts as the primary switching device that closes when the thermostat calls for cooling, sending 240V power to both the compressor and condenser fan motor. When it fails — due to pitted contacts, a burned coil, or a mechanically stuck plunger — the system will either refuse to start entirely, run continuously without cycling off, or trip the breaker repeatedly. OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53CD115\u003c\/strong\u003e are factory-matched replacements for this application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | 40A contact rating | Factory-matched coil resistance and contact material for reliable switching under load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact tips rated for tens of thousands of switching cycles. Generic alternatives frequently use lower-grade alloys that pit and weld after one season, causing the system to run non-stop and risk compressor burnout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always shut off power at both the disconnect and breaker panel before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting any terminals. Line-side terminals carry lethal voltage — treat them as live until confirmed otherwise.\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 Designed for the Carrier \u003cstrong\u003eC48A503012\u003c\/strong\u003e packaged unit. Replaces OEM part numbers HN53CB115 and HN53CD115. Verify pole count, coil voltage, and amperage rating on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you check out — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909733732723,"sku":"CARRIE-C48A503012-CONTACTOR-HN53CB115","price":40.8,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909733765491,"sku":"CARRIE-C48A503012-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_c84b5749-da50-4c21-b84c-bbc3a8659caf.jpg?v=1782898851","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a503012-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}