{"product_id":"carrier-lc748lccsrmy2500-contactor-1h3zxd","title":"OEM Carrier Contactor 2-Pole 24V for LC748LCCSRMY2500","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor for Model LC748LCCSRMY2500 — Part# HN52TC024 \/ HN52TC040\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM replacement contactor for the \u003cstrong\u003eCarrier LC748LCCSRMY2500\u003c\/strong\u003e condensing unit. The contactor is a high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to deliver line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contact points, a stuck plunger, or a burned-out coil — the system will either refuse to turn on at all, run continuously without shutting off, or trip the breaker repeatedly. Replacing with a genuine OEM part ensures correct coil pull-in voltage, contact ampacity, and long-term reliability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole configuration | 24V coil voltage | Compatible OEM Part Numbers: \u003cstrong\u003eHN52TC024\u003c\/strong\u003e and \u003cstrong\u003eHN52TC040\u003c\/strong\u003e | Heavy-duty silver-alloy contact points rated for high cycle life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM contactors are manufactured to exact factory tolerances for coil resistance and contact rating. Generic contactors often use lower-grade contact alloys that pit and char faster, leading to premature failure — especially in high-cycle cooling climates.\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, multimeter. Photograph all wiring connections before disconnecting. Line-voltage terminals remain energized at the disconnect box — verify power is off with your multimeter before touching any wires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty. Orders placed by 3PM EST ship same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for \u003cstrong\u003eCarrier model LC748LCCSRMY2500\u003c\/strong\u003e. Cross-references OEM part numbers HN52TC024 and HN52TC040. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Not sure it's the right part? Our HVAC parts specialists confirm fitment before you buy — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909293494643,"sku":"CARRIE-LC748LCCSRMY2500-CONTACTOR-HN52TC024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909293527411,"sku":"CARRIE-LC748LCCSRMY2500-CONTACTOR-HN52TC024-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-HN52TC024_20835630-7cdc-47aa-bbe2-efce11122543.jpg?v=1782905074","url":"https:\/\/nationalhvacparts.com\/products\/carrier-lc748lccsrmy2500-contactor-1h3zxd","provider":"National HVAC Parts","version":"1.0","type":"link"}