{"product_id":"carrier-tchc0250hefmraf531-contactor-1h3zxi","title":"OEM Carrier 2-Pole Contactor 40A 24V for TCHC0250HEFMRAF531","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 40 Amp 24V for Model TCHC0250HEFMRAF531\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier contactor (part number \u003cstrong\u003eHN52TC040\u003c\/strong\u003e) is the factory-specified high-voltage relay for the \u003cstrong\u003eCarrier TCHC0250HEFMRAF531\u003c\/strong\u003e system. The contactor acts as the primary switching device between the 24V thermostat control signal and the high-voltage compressor and condenser fan circuits. When the thermostat calls for cooling, the 24V coil energizes, pulling in the contacts and delivering line voltage to your compressor and fan motor. A failed contactor is one of the most common reasons an air conditioning system hums at the outdoor unit but never starts — or fails to respond to the thermostat entirely.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole | 40 FLA (Full Load Amps) | 24V 50\/60Hz Coil | OEM Part Number HN52TC040 | Factory drop-in replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM contactor, manufactured to exact factory tolerances. Generic contactors may have undersized contacts that arc and pit prematurely under high-load cycling, leading to repeat failures within one season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power at the breaker and confirm voltage is absent with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting the old unit. The contactor is typically located in the electrical compartment of the outdoor condenser.\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 Engineered for the Carrier model \u003cstrong\u003eTCHC0250HEFMRAF531\u003c\/strong\u003e. Verify your existing contactor's pole count, amperage rating, and coil voltage on the unit's data plate or wiring diagram before ordering. Our technical team is available to confirm fitment — reach out before you buy if you have any questions. In-stock and ready to ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640284860787,"sku":"CARRIE-TCHC0250HEFMRAF531-CONTACTOR-HN52TC040","price":71.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640284893555,"sku":"CARRIE-TCHC0250HEFMRAF531-CONTACTOR-HN52TC040-GEN","price":62.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN52TC040_0fd53a96-aa42-4fbe-af78-06f7b3e67b1b.jpg?v=1775015655","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc0250hefmraf531-contactor-1h3zxi","provider":"National HVAC Parts","version":"1.0","type":"link"}