{"product_id":"carrier-cp50p550p504021cp-contactor-1k1s1j","title":"OEM Carrier Contactor 2-Pole 24V Coil for CP50P550P504021CP","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model CP50P550P504021CP\u003c\/h1\u003e\u003cp\u003eThis OEM contactor is the factory-specified replacement for the \u003cstrong\u003eCarrier CP50P550P504021CP\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 to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the system will not start, or may run continuously without cycling off. OEM part number \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 packaged unit application | Direct OEM replacement, no modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor meets Carrier's exact coil pull-in voltage and contact material specifications. Generic aftermarket contactors frequently use lower-grade silver alloy contacts that pit faster under load, leading to repeat failures 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 verify zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. 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 Engineered as a direct OEM replacement for \u003cstrong\u003eCarrier model CP50P550P504021CP\u003c\/strong\u003e packaged units. Always confirm coil voltage and pole configuration on your unit's data plate before ordering. Cross-reference OEM part number HN53CD115 to ensure correct fitment. Have questions about compatibility? Our HVAC parts specialists verify fitment before every order — contact us before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909583688051,"sku":"CARRIE-CP50P550P504021CP-CONTACTOR-HN53CD115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909583720819,"sku":"CARRIE-CP50P550P504021CP-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_34ff6015-f406-402d-a7f5-e5c6574be09e.jpg?v=1782904620","url":"https:\/\/nationalhvacparts.com\/products\/carrier-cp50p550p504021cp-contactor-1k1s1j","provider":"National HVAC Parts","version":"1.0","type":"link"}