{"product_id":"carrier-c50a503051-contactor-1k1tl0","title":"OEM Carrier 2-Pole Contactor 24V Coil for C50A503051","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C50A503051\u003c\/h1\u003e\u003cp\u003eThis OEM contactor is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A503051\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by the 24V thermostat signal — when your thermostat calls for cooling, the contactor closes to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioner that hums but won't start, trips the breaker, or simply refuses to turn on at all. Pitted or burned contacts are a clear sign of contactor failure and should be replaced promptly to protect the compressor.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V coil voltage | High-amperage contacts | Direct OEM replacement — part numbers HN53CB115, HN53CD115, HN53HF122, HN53HG120\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use factory-grade silver-alloy contact tips rated for thousands of switching cycles. Generic contactors often use lower-grade alloys that pit and burn faster, risking compressor damage and premature failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power at the disconnect box and verify voltage is absent with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before removing the old contactor. Line-voltage terminals are present — exercise caution at all times.\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 Fits Carrier model \u003cstrong\u003eC50A503051\u003c\/strong\u003e commercial packaged units. Cross-references OEM part numbers HN53CB115, HN53CD115, HN53HF122, and HN53HG120 — verify your existing part number or unit data plate before ordering to confirm the correct amperage rating. Our HVAC parts specialists are available to verify fitment prior to purchase. \u003cstrong\u003eIn stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909673046387,"sku":"CARRIE-C50A503051-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909673079155,"sku":"CARRIE-C50A503051-CONTACTOR-HN53CB115-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-HN53CB115_992b288a-a307-4030-8dd3-d02a3fbe151e.jpg?v=1782897638","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a503051-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}