{"product_id":"carrier-c50a502712-contactor-1k1tl0","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for C50A502712","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C50A502712\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor is the factory-specified part for the \u003cstrong\u003eCarrier C50A502712\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 power the compressor and condenser fan motor. When it fails — due to pitted contacts, a burned coil, or a stuck plunger — the unit will either refuse to start, run continuously without shutting off, or trip the breaker. OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53CD115\u003c\/strong\u003e are the factory-matched replacements for this application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole configuration | 24V control coil | 30–40A contact rating | Factory-matched contact material and coil resistance for reliable switching under load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors (HN53CB115 \/ HN53CD115) use factory-grade silver-alloy contacts rated for thousands of switching cycles. Generic substitutes often use lower-grade contact material that pits prematurely, especially in high-cycling applications — leading to repeat failures within a single season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always disconnect power at the disconnect box and verify voltage is absent with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all high-voltage wiring before removal. Coil wires (24V) are typically push-on terminals; line and load lugs are screw-type.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier C50A502712\u003c\/strong\u003e commercial packaged unit. Cross-references OEM part numbers HN53CB115 and HN53CD115. Confirm pole count, amperage rating, and coil voltage on your unit's data plate before ordering. Our team is available to verify fitment — reach out before you buy if you have any questions. Order today and receive same-day shipping on all in-stock parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909674848627,"sku":"CARRIE-C50A502712-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909674881395,"sku":"CARRIE-C50A502712-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_61a6edf8-551e-4582-8a2a-989163c53e2e.jpg?v=1782898858","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a502712-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}