{"product_id":"carrier-c4850c50ay02711-contactor-1k1tl0","title":"OEM Carrier 2-Pole 24V Coil Definite Purpose Contactor for C4850C50AY02711 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor HN53CB115 for Model C4850C50AY02711\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor (part# \u003cstrong\u003eHN53CB115\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C4850C50AY02711\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay controlled by your thermostat's 24V signal. When the thermostat calls for cooling, the contactor closes to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioner that won't start — symptoms include the unit not responding to the thermostat, a buzzing or chattering noise at the contactor, or burned\/pitted contact points that prevent proper electrical flow.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | Rated for high-amperage compressor loads | Factory-matched contact material and pull-in voltage for Carrier C4850C50AY02711\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use factory-spec contact alloy and coil windings, ensuring reliable pull-in at low 24V signal. Generic contactors frequently exhibit chatter, premature pitting, and coil burnout — especially under heavy-load packaged unit applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires shutting off power at the disconnect and verifying zero voltage with a multimeter before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and wire labels. Photograph all wiring connections before removal. Line voltage is present inside the cabinet — if uncomfortable, contact a licensed HVAC technician.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-specified for the \u003cstrong\u003eCarrier C4850C50AY02711\u003c\/strong\u003e packaged unit. Verify coil voltage and pole configuration on your unit's wiring diagram or data plate before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you order and we'll make sure you get the right part the first time.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909813162355,"sku":"CARRIE-C4850C50AY02711-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909813195123,"sku":"CARRIE-C4850C50AY02711-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_48121f20-154a-4e65-878d-6c458ca40440.jpg?v=1782897317","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50ay02711-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}