{"product_id":"carrier-c50a502052-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A502052","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C50A502052\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C50A502052\u003c\/strong\u003e commercial rooftop unit. The transformer steps down line voltage (120V) to the 24V signal voltage that powers your thermostat, control board, and all low-voltage switching components. When the transformer fails, the entire control circuit goes dark — your thermostat goes blank, contactors won't energize, and the system will not respond to any calls for heating or cooling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA output rating | 120V primary \/ 24V secondary | OEM part number HT01BD236 | Factory-matched for Carrier C50A502052 rooftop units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier transformer wound to exact VA and voltage tolerances. Generic transformers often underperform at rated load, causing nuisance tripping of the secondary fuse and erratic control board behavior — stick with OEM to protect downstream components.\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, wire nuts or spade terminals, multimeter. Always verify 24V output before reconnecting the control circuit. Confirm the secondary fuse or circuit breaker is intact before condemning the transformer.\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 specifically for the Carrier \u003cstrong\u003eC50A502052\u003c\/strong\u003e commercial packaged rooftop unit. Verify the 40VA rating and 120V\/24V configuration on your unit's data plate before ordering. If your unit runs a 208\/240V primary, do not order this part — contact our team for the correct variant. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909676781939,"sku":"CARRIE-C50A502052-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909676814707,"sku":"CARRIE-C50A502052-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_d5a1bcb2-cf19-49db-8ea7-cf6afba566d0.jpg?v=1782940559","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a502052-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}