{"product_id":"carrier-c50a302561-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A302561","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C50A302561\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for \u003cstrong\u003eCarrier C50A302561\u003c\/strong\u003e commercial rooftop units. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, contactors, and all low-voltage safety circuits. When it fails, absolutely nothing in the control circuit responds — the thermostat goes blank, the system won't call for heating or cooling, and you may measure zero volts at the secondary terminals.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BD236 | Factory-matched for Carrier commercial rooftop applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances, protecting downstream control boards and contactors from voltage sag. Generic units may underperform under full control-circuit load, causing nuisance lockouts or premature board failure.\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. Always verify 0V at primary leads before handling. Label all low-voltage wiring prior to disconnecting the old unit.\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 Carrier model \u003cstrong\u003eC50A302561\u003c\/strong\u003e commercial packaged rooftop equipment. Confirm your existing transformer's VA rating and primary\/secondary voltages on the unit data plate before ordering. Our fitment team is available to verify compatibility — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909704831347,"sku":"CARRIE-C50A302561-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909704864115,"sku":"CARRIE-C50A302561-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_efaff00d-ba22-474f-bcc5-0c2137dde649.jpg?v=1782940417","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a302561-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}