{"product_id":"carrier-c50a404021-contactor-1k1tl0","title":"OEM Carrier 2-Pole Contactor 30A 24V Coil for C50A404021 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil 30A for Model C50A404021\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C50A404021\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by your thermostat's 24V signal — when the call for cooling comes in, the contactor closes to send line voltage to the compressor and condenser fan motor. A failing contactor is one of the most common causes of a completely unresponsive air conditioning system. Symptoms include the unit not turning on at all, audible clicking with no compressor start, pitted or burned contact points, or the contactor coil failing to pull in. OEM part numbers covered: \u003cstrong\u003eHN53CB115\u003c\/strong\u003e, \u003cstrong\u003eHN53CD115\u003c\/strong\u003e, and \u003cstrong\u003eHN53HF122\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | 30A rated | Factory-matched contact material for long service life and low resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use precision-machined contact points and factory-spec coil windings. Generic units often exhibit premature pitting, coil burnout, or inconsistent pull-in voltage — leading to repeat failures and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Transfer one wire at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed by 3PM local time 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\u003eC50A404021\u003c\/strong\u003e packaged unit. This listing covers OEM part numbers HN53CB115, HN53CD115, and HN53HF122 — all factory-approved replacements for this application. Verify pole count, coil voltage, and amperage rating on your existing contactor's data label before ordering. Our HVAC parts specialists are available to confirm fitment before you buy — don't hesitate to reach out. \u003cstrong\u003eIn stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909682844019,"sku":"CARRIE-C50A404021-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909682876787,"sku":"CARRIE-C50A404021-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_949ec730-e404-4dc0-b80e-2f589ee7b2db.jpg?v=1782897723","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a404021-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}