{"product_id":"carrier-c50a405053-contactor-1k40tt","title":"OEM Carrier Contactor 2-Pole 24V Coil for C50A405053","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor for Model C50A405053 — HN53HF122 \/ HN53HG120\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C50A405053\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay that controls power delivery to the compressor and condenser fan motor. When the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, closing the contacts and allowing line voltage to flow. A failed contactor typically results in an air conditioner that won't turn on at all, buzzes or chatters without starting, or runs continuously without cycling off due to welded contacts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V coil voltage | Line voltage rated for standard residential\/light commercial applications | Replaces OEM part numbers \u003cstrong\u003eHN53HF122\u003c\/strong\u003e and \u003cstrong\u003eHN53HG120\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory OEM contactor meets exact Carrier contact gap, coil pull-in voltage, and amp rating specifications. Generic contactors may use lower-grade contact material that pits and welds prematurely, causing nuisance callbacks and callbacks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Line voltage terminals remain energized until the disconnect is fully open — treat with caution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships 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\u003eC50A405053\u003c\/strong\u003e commercial packaged unit. Cross-references OEM part numbers HN53HF122 and HN53HG120. Verify pole count, coil voltage, and amperage rating on your unit's data plate before ordering to ensure proper fitment. Have questions about compatibility? Our HVAC parts specialists confirm fitment before you order — no guessing required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909679239539,"sku":"CARRIE-C50A405053-CONTACTOR-HN53HF122","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909679272307,"sku":"CARRIE-C50A405053-CONTACTOR-HN53HF122-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-HN53HF122.jpg?v=1782904462","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a405053-contactor-1k40tt","provider":"National HVAC Parts","version":"1.0","type":"link"}