{"product_id":"carrier-c50a303052-contactor-1k1tl0","title":"OEM Carrier 2-Pole Contactor 24V Coil for C50A303052","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C50A303052\u003c\/h1\u003e\u003cp\u003eThis OEM contactor is the factory-specified high-voltage relay for the \u003cstrong\u003eCarrier C50A303052\u003c\/strong\u003e commercial packaged unit. The contactor acts as the primary electrical switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling. When the contactor fails — due to worn contacts, coil burnout, or pitting from arcing — the system will either refuse to start, hum without engaging, or drop out unexpectedly mid-cycle. Replaces OEM part numbers \u003cstrong\u003eHN53CB115, HN53CD115, HN53HF122, and HN53HG120\u003c\/strong\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for compressor load | Direct OEM replacement with matched contact material and spring tension\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 make\/break cycles. Generic contactors frequently use inferior contact material that pits and welds prematurely, causing compressor failures and costly callbacks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires lockout\/tagout of high-voltage power at the disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting. Line-side terminals carry lethal voltage — confirm power is off with a meter before touching any wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship the 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\u003eC50A303052\u003c\/strong\u003e packaged rooftop\/commercial unit. This listing covers cross-referenced OEM part numbers HN53CB115, HN53CD115, HN53HF122, and HN53HG120 — all factory-equivalent contactors for this platform. Verify your existing contactor's pole count and coil voltage on the unit's data plate or wiring diagram before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909703029107,"sku":"CARRIE-C50A303052-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909703061875,"sku":"CARRIE-C50A303052-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_143b20a5-f0a9-4bb7-83c5-5a6731ca2b82.jpg?v=1782897619","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a303052-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}