{"product_id":"carrier-c4850c48zn055500-contactor-1k1tl0","title":"OEM Carrier 2-Pole Contactor 24V Coil for C4850C48ZN055500 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C48ZN055500\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C4850C48ZN055500\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat. When you call for cooling, the control board energizes the contactor coil, closing the high-voltage contacts that power the compressor and condenser fan motor. A failed contactor is one of the most common causes of an AC that simply won't turn on — symptoms include the thermostat calling for cooling with no response from the outdoor unit, a buzzing or chattering noise at the contactor, or burned\/pitted contact points visible upon inspection.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | High-amperage contacts rated for compressor load | Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact points engineered to factory arc-resistance specifications. Generic contactors often use lower-grade contacts that pit and weld faster under compressor inrush current, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power at the disconnect box and verify voltage is zero before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor — line, load, and coil terminals must be reconnected correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units 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 specifically for the Carrier \u003cstrong\u003eC4850C48ZN055500\u003c\/strong\u003e packaged unit. This listing covers three valid OEM part numbers — HN53CB115, HN53HF122, and HN53HG120 — all of which are factory-authorized replacements for this application. Verify coil voltage and pole configuration on your unit's data plate before ordering. Our parts specialists are available to confirm fitment prior to purchase.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909855891827,"sku":"CARRIE-C4850C48ZN055500-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909855924595,"sku":"CARRIE-C4850C48ZN055500-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_a8c0eb28-8adb-47cc-8817-6c1e9de20dd5.jpg?v=1782897578","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48zn055500-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}