{"product_id":"carrier-c50a404011-contactor-1k1tl0","title":"OEM Carrier 410A Contactor 2-Pole 24V Coil for C50A404011","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model C50A404011\u003c\/h1\u003e\u003cp\u003eThis OEM contactor is the factory-specified replacement for the \u003cstrong\u003eCarrier C50A404011\u003c\/strong\u003e packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the control board and closes the circuit to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — the system will power on at the thermostat but the compressor and outdoor unit will not respond. In some cases, a failed contactor causes the system to run continuously without cycling off.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V control coil | Rated for R-410A system load | OEM part numbers HN53CB115 and HN53CD115 | Factory-matched contact material and coil resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use factory-spec contact alloy and coil wire gauging. Generic contactors frequently use undersized contacts that pit and weld prematurely, especially under high-cycling summer loads — OEM is strongly recommended for compressor protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power at the breaker and verify with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removal. Line-voltage terminals must be re-torqued to spec to prevent arcing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits \u003cstrong\u003eCarrier C50A404011\u003c\/strong\u003e commercial packaged units. This listing covers OEM part numbers \u003cstrong\u003eHN53CB115\u003c\/strong\u003e and \u003cstrong\u003eHN53CD115\u003c\/strong\u003e — both are direct replacements for this model. Always verify pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Not sure it fits? Our parts team confirms fitment before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909682909555,"sku":"CARRIE-C50A404011-CONTACTOR-HN53CB115","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909682942323,"sku":"CARRIE-C50A404011-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_91d6c2bc-4309-4ee8-81e6-2387731923a2.jpg?v=1782900104","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a404011-contactor-1k1tl0","provider":"National HVAC Parts","version":"1.0","type":"link"}