{"product_id":"carrier-c4850c50z2040900-contactor-1k1tl0","title":"OEM Carrier 2-Pole 24V Coil Definite Purpose Contactor for C4850C50Z2040900 — Ships Today","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor for Model C4850C50Z2040900\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM replacement contactor for the \u003cstrong\u003eCarrier C4850C50Z2040900\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by a 24V signal from the thermostat or control board. When the thermostat calls for cooling, the 24V coil energizes and closes the contacts, sending line voltage to the compressor and condenser fan motor. When the contactor fails — due to burned or pitted contacts, a welded contactor, or a failed coil — the system either won't start at all or runs continuously without responding to the thermostat. Replaces OEM part numbers \u003cstrong\u003eHN53CB115\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 coil voltage | Rated for line voltage compressor and fan motor loads | Direct OEM replacement — factory-matched contact material and coil pull-in voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use higher-grade silver-alloy contact tips that resist pitting and arcing far longer than generic alternatives. Inferior contacts can weld shut, causing the unit to run non-stop, or fail to close reliably, leaving you with no cooling during peak season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always shut off power at the disconnect and verify zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor to ensure correct re-termination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC4850C50Z2040900\u003c\/strong\u003e packaged unit. Cross-references OEM part numbers HN53CB115 and HN53HF122. Verify pole count, coil voltage, and amperage rating on your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909803954547,"sku":"CARRIE-C4850C50Z2040900-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909803987315,"sku":"CARRIE-C4850C50Z2040900-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_93bd6fca-d966-47a5-bcd1-949181b8dae1.jpg?v=1782897326","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50z2040900-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}