{"product_id":"carrier-c50a304051-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A304051","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model C50A304051\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C50A304051\u003c\/strong\u003e commercial packaged unit. The transformer steps down 120V line voltage to 24V AC to power the control board, thermostat, and all low-voltage switching components. When this part fails, the entire control circuit goes dead — you'll see a blank thermostat, no response to calls for heating or cooling, and no contactor activity. It is one of the first components to check when a unit has completely stopped responding.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BD236 | Factory-matched for Carrier C50A304051\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM transformer meets exact VA load ratings required by the Carrier control board. Undersized or off-tolerance generic units can overheat, trip internal fuses, or fail prematurely under full control circuit load — particularly in packaged units with multiple low-voltage accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Verify 24V output on secondary terminals before reconnecting control wiring. Photograph existing wire routing before removal.\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 Carrier \u003cstrong\u003eC50A304051\u003c\/strong\u003e commercial rooftop\/packaged unit. Always verify the VA rating and primary\/secondary voltages on your unit's data plate before ordering. Our parts specialists are available to confirm fitment — reach out before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909696541043,"sku":"CARRIE-C50A304051-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909696573811,"sku":"CARRIE-C50A304051-TRANSFORMER-HT01BD236-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BD236_326b2dbd-a5fb-4f7f-be72-a504fdc188ba.jpg?v=1782940456","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a304051-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}