{"product_id":"carrier-c50a302051-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A302051","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C50A302051\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified control transformer for the \u003cstrong\u003eCarrier C50A302051\u003c\/strong\u003e commercial rooftop unit. Its sole job is stepping line voltage (120V) down to 24V AC to power the low-voltage control circuit — thermostats, relays, contactors, and the control board all depend on it. When this transformer fails, absolutely nothing works: no call for cooling, no call for heat, no fan — the system goes completely silent and unresponsive at the thermostat.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V AC | Class 2 control transformer | Direct OEM replacement for part number HT01BD236\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM transformer is wound to exact VA and impedance specs for the Carrier C50A302051 control board. Undersized or off-tolerance aftermarket transformers can cause erratic control behavior, nuisance tripping, or premature board failure — OEM is the only safe choice for a commercial application.\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, needle-nose pliers, multimeter to verify 24V output after install. Always label and photograph wire connections before disconnecting the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse stock.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Confirmed fit for Carrier model \u003cstrong\u003eC50A302051\u003c\/strong\u003e commercial packaged rooftop unit. Verify primary voltage (120V) on your unit's data plate before ordering — some rooftop configurations use 208\/240V primary transformers and will require a different part. Our technical team is available to confirm fitment before you order. In stock and ships today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909707944307,"sku":"CARRIE-C50A302051-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909707977075,"sku":"CARRIE-C50A302051-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_137355d2-59ea-4b86-84fb-4348b17dcfbf.jpg?v=1782940400","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a302051-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}