{"product_id":"carrier-c50a302761-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A302761","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model C50A302761\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C50A302761\u003c\/strong\u003e commercial rooftop unit. The transformer steps down 120V line voltage to the 24V signal voltage required by the thermostat, control board, contactor coils, and all low-voltage control circuit components. When the transformer fails, the entire control circuit goes dead — the thermostat displays nothing, the unit won't respond to any call for heating or cooling, and no safety or operating sequences can initiate.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Factory-matched impedance and thermal protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by Carrier's control board. Undersized or off-spec generic transformers can brown out under full contactor coil load, causing nuisance lockouts or permanent board damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminal connectors. Verify 0V at primary terminals before touching wiring. Label all low-voltage leads prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 specifically for the Carrier \u003cstrong\u003eC50A302761\u003c\/strong\u003e commercial packaged rooftop unit. Always verify the transformer's VA rating and primary\/secondary voltages on your unit's wiring diagram or data plate before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping on all in-stock OEM parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909704438131,"sku":"CARRIE-C50A302761-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909704470899,"sku":"CARRIE-C50A302761-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_856f27f0-b720-4f67-a24b-1ad08eadb7c5.jpg?v=1782940428","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a302761-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}