{"product_id":"carrier-hc1cjx042000aaaa-contactor-1iwxlq","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for HC1CJX042000AAAA","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model HC1CJX042000AAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM replacement contactor (part number \u003cstrong\u003eHN51KC024\u003c\/strong\u003e) factory-specified for the \u003cstrong\u003eCarrier HC1CJX042000AAAA\u003c\/strong\u003e split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from your thermostat and closes to deliver line voltage to the compressor and condenser fan motor. When the contactor fails — due to worn contacts, pitting, or a burned coil — your system will either fail to energize entirely, run continuously without shutting off, or produce a loud chattering or buzzing noise from the disconnect box.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | 30–40A contact rating | Direct OEM replacement for part number HN51KC024 | Factory-matched contact material and coil pull-in voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use factory-grade silver-alloy contact tips rated for thousands of cycles. Generic contactors frequently use lower-grade alloys that pit and weld prematurely, leading to repeat failures — especially during high-demand summer cooling seasons.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always disconnect power at the outdoor disconnect and verify zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, voltage tester. Photograph all wiring before removal. Line-voltage terminals are present — exercise caution throughout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Orders placed by 3 PM local time ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier HC1CJX042000AAAA\u003c\/strong\u003e condensing unit. Always verify coil voltage and pole configuration against your unit's wiring diagram and data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — reach out via chat or phone and we'll verify your application in minutes.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909335241075,"sku":"CARRIE-HC1CJX042000AAAA-CONTACTOR-HN51KC024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909335273843,"sku":"CARRIE-HC1CJX042000AAAA-CONTACTOR-HN51KC024-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-HN51KC024_267f9bfd-5e00-4e83-975b-1c068329bdd8.jpg?v=1782898989","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hc1cjx042000aaaa-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}