{"product_id":"carrier-c48a503011-contactor-1k1tl0","title":"OEM Carrier Contactor 2-Pole 24V for C48A503011 — HN53CB115","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor for Model C48A503011 — HN53CB115 \/ HN53CD115\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C48A503011\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by a 24V signal from your thermostat or control board. When energized, it closes the circuit to deliver 240V power to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioning system that hums, clicks, or simply refuses to start — even when the thermostat is calling for cooling. Pitted or burned contacts, a stuck plunger, or a failed coil are all tell-tale signs this part needs immediate replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole configuration | 24V coil voltage | Factory-rated amperage for C48A503011 | OEM part numbers HN53CB115 and HN53CD115 (direct interchange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the exact factory-matched contactor. OEM contacts are rated to precise ampacity and cycle tolerances. Generic contactors often use lower-grade contact materials that pit faster, especially in high-cycle summer conditions — shortening compressor life and leading to repeat failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect AND the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting terminals. The contactor pulls straight out of its mounting bracket after removing two screws.\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 Engineered for the Carrier \u003cstrong\u003eC48A503011\u003c\/strong\u003e packaged unit. OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53CD115\u003c\/strong\u003e are direct interchanges for this application — either part number fulfills the same factory specification. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909734289779,"sku":"CARRIE-C48A503011-CONTACTOR-HN53CB115","price":40.8,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909734322547,"sku":"CARRIE-C48A503011-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_5be64930-d3ce-4d3b-bf3e-324a7098f91a.jpg?v=1782905045","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a503011-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}