{"product_id":"carrier-c4850c50ay04151-contactor-1k1tl0","title":"OEM Carrier Contactor 2-Pole 24V Coil for C4850C50AY04151 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50AY04151\u003c\/h1\u003e\u003cp\u003eThis OEM contactor is the factory-specified replacement for the \u003cstrong\u003eCarrier C4850C50AY04151\u003c\/strong\u003e packaged unit. The contactor acts as the main high-voltage relay in the system, receiving a low-voltage (24V) signal from the thermostat and switching line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the most common symptom is an air conditioning system that simply won't turn on, even though the thermostat is calling for cooling. You may also notice a buzzing or chattering sound near the contactor in the electrical compartment.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V control coil voltage | Line voltage switching for compressor and condenser fan | OEM part numbers: \u003cstrong\u003eHN53CB115, HN53HF122, HN53HG120\u003c\/strong\u003e — all are factory-authorized replacements for this unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier contactors are manufactured to exact contact gap, coil pull-in voltage, and amperage ratings. Generic contactors often use thinner contact material that pits faster under the high inrush current of compressor startup, leading to repeat failures within a single season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at both the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting terminals. One-for-one terminal swap recommended.\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 Engineered specifically for the \u003cstrong\u003eCarrier C4850C50AY04151\u003c\/strong\u003e packaged unit. Cross-reference OEM part numbers HN53CB115, HN53HF122, or HN53HG120 against your unit's data plate and wiring diagram to confirm fitment. If you're unsure which part number applies to your exact serial range, our HVAC parts specialists can verify compatibility before you order — no guesswork required. Order now and receive same-day shipping on all in-stock contactors.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909809688947,"sku":"CARRIE-C4850C50AY04151-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909809721715,"sku":"CARRIE-C4850C50AY04151-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_91b51f77-cafa-4665-bc4e-5e9581300ee1.jpg?v=1782904277","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50ay04151-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}