{"product_id":"carrier-cp50p550p505521cp-contactor-1k1s1j","title":"OEM Carrier Contactor 2-Pole 24V Coil for CP50P550P505521CP","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model CP50P550P505521CP\u003c\/h1\u003e\u003cp\u003eThis OEM contactor is the factory-specified replacement for the \u003cstrong\u003eCarrier CP50P550P505521CP\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to deliver line voltage to the compressor and condenser fan motor. When it fails — due to pitted contacts, a burned coil, or a stuck plunger — your system will either refuse to start entirely, run constantly without cycling off, or fail to cool despite the indoor blower operating normally.\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 | OEM part number HN53CD115 | Exact factory replacement dimensions and terminal layout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact tips rated for thousands of switching cycles. Generic contactors frequently use inferior contact materials that pit and weld prematurely, leading to repeat failures within a single cooling season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always disconnect power at the disconnect box and breaker before beginning work. 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 and transfer wires one at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for Carrier model \u003cstrong\u003eCP50P550P505521CP\u003c\/strong\u003e packaged units. Cross-reference OEM part number HN53CD115 and verify coil voltage and pole configuration on your unit's wiring diagram or data plate before ordering. Our fitment team is available to confirm compatibility prior to purchase — same-day shipping on all in-stock orders.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909583163763,"sku":"CARRIE-CP50P550P505521CP-CONTACTOR-HN53CD115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909583196531,"sku":"CARRIE-CP50P550P505521CP-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_382e6558-27b1-40f3-8769-c4ba3c102557.jpg?v=1782904625","url":"https:\/\/nationalhvacparts.com\/products\/carrier-cp50p550p505521cp-contactor-1k1s1j","provider":"National HVAC Parts","version":"1.0","type":"link"}