{"product_id":"carrier-c4850c48ay05021-contactor-1k1tl0","title":"OEM Carrier Contactor 2-Pole 24V Coil for C4850C48AY05021","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C4850C48AY05021\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-replacement contactor for the \u003cstrong\u003eCarrier C4850C48AY05021\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to send line voltage to the compressor and condenser fan motor. When it fails, the most common symptoms include the system failing to start entirely, the compressor humming without running, or the unit tripping the breaker repeatedly. Worn or pitted contacts are often visible on inspection and are a leading cause of compressor damage if left unaddressed.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole design | 24V AC coil voltage | Rated for line voltage compressor and fan motor loads | OEM part numbers HN53CB115 and HN53HF122 — verify your existing part number before ordering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier contactors feature factory-spec silver-alloy contact tips rated to exact amperage thresholds. Generic contactors often use lower-grade contacts that pit and arc prematurely, risking compressor damage and callback visits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at both the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, and a multimeter to confirm voltage drop across contacts. Always photograph existing wiring before disconnecting terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed by 3 PM local time ship 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 \u003cstrong\u003eCarrier C4850C48AY05021\u003c\/strong\u003e packaged unit. This listing covers both OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53HF122\u003c\/strong\u003e — check the part number printed on your existing contactor body to confirm the correct variant. If you are unsure, our HVAC parts specialists can verify fitment before you order. Add to cart now and get same-day shipping on this in-stock OEM part.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909877158259,"sku":"CARRIE-C4850C48AY05021-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909877191027,"sku":"CARRIE-C4850C48AY05021-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_8bc8e2e8-973d-4f84-a159-0c6226576d3b.jpg?v=1782904196","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c48ay05021-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}