{"product_id":"carrier-c4850c50z3105110-contactor-1k1tl0","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for C4850C50Z3105110 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50Z3105110\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM contactor for the \u003cstrong\u003eCarrier C4850C50Z3105110\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by your thermostat's 24V signal — when the call for cooling arrives, the contactor closes its poles to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an air conditioning system won't turn on, hums without starting, or drops out mid-cycle. Pitted or burned contacts, a weak coil, or contacts welded shut are all signs this part needs replacing. OEM part numbers covered: \u003cstrong\u003eHN53CB115\u003c\/strong\u003e, \u003cstrong\u003eHN53HF122\u003c\/strong\u003e, and \u003cstrong\u003eHN53HG120\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | 30–40A contact rating | Direct OEM factory replacement — matches original mounting footprint and wire gauges exactly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact tips rated for thousands of switching cycles. Generic contactors often use lower-grade alloys that pit and burn faster, leading to premature compressor failure and repeat service calls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting line voltage at the disconnect box before opening the unit. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring before removal. Verify coil voltage with a multimeter prior to installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units 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\u003eC4850C50Z3105110\u003c\/strong\u003e packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Confirm pole count, coil voltage, and amperage rating on your unit's data plate before ordering. Our fitment team is available to verify compatibility — just reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909787144563,"sku":"CARRIE-C4850C50Z3105110-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909787177331,"sku":"CARRIE-C4850C50Z3105110-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_484e315e-88a5-493b-889e-f6ebc56ce83f.jpg?v=1782898831","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50z3105110-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}