{"product_id":"carrier-c4850c50zn040900-contactor-1k1tl0","title":"OEM Carrier Contactor 2-Pole 24V Coil for C4850C50ZN040900 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50ZN040900\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified high-voltage relay for the \u003cstrong\u003eCarrier C4850C50ZN040900\u003c\/strong\u003e packaged unit. The contactor acts as the main switching component that closes the high-voltage circuit to the compressor and condenser fan motor when your thermostat calls for cooling. When the contactor fails — due to pitted or welded contacts, a burned coil, or a weak pull-in — your system will either refuse to start entirely, run continuously without shutting off, or trip the breaker repeatedly. Replacing the contactor is one of the most common and cost-effective repairs in HVAC service. OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53HF122\u003c\/strong\u003e are both factory-authorized replacements for this application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V control coil | High-amperage load contacts rated for compressor and fan duty | Direct OEM drop-in replacement — no wiring modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors feature factory-matched contact material and coil pull-in voltage tolerances. Generic units often use lower-grade contact alloys that pit faster under load cycling, shortening service life significantly in high-duty applications like packaged rooftop units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect and lock out power at the disconnect box 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. Terminals are line-side (L1\/L2) and load-side (T1\/T2) — correct orientation is critical.\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 stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC4850C50ZN040900\u003c\/strong\u003e packaged unit. Verify coil voltage (24V) and pole configuration against your unit's wiring diagram and data plate before ordering. Replaces OEM part numbers HN53CB115 and HN53HF122. Our fitment team is available to confirm compatibility before you order — reach out via chat or phone.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909774430579,"sku":"CARRIE-C4850C50ZN040900-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909774463347,"sku":"CARRIE-C4850C50ZN040900-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_a2108ea0-035e-478a-84a5-e3d57798e668.jpg?v=1782904338","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50zn040900-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}