{"product_id":"carrier-c50a302064-transformer-h301d7","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A302064","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C50A302064\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part number \u003cstrong\u003eHT01BD702\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eC50A302064\u003c\/strong\u003e commercial packaged unit. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, contactor coil, and all low-voltage safety circuits. When the transformer fails, the entire control circuit goes dark — the thermostat shows a blank screen, the system won't respond to any call for heating or cooling, and no safety faults can even be logged. It is often the first component to check when nothing works at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | Class 2 transformer | Factory-matched to Carrier C50A302064 control circuit requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances for Carrier equipment. Undersized or off-tolerance generic units can overheat, blow internal fuses, or allow voltage sag that causes nuisance lockouts and contactor chatter.\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 24V output after installation before closing the unit. Label or photograph existing wiring 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\u003eC50A302064\u003c\/strong\u003e commercial rooftop\/packaged unit. Confirm your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. Our parts specialists are available to verify fitment — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909705519475,"sku":"CARRIE-C50A302064-TRANSFORMER-HT01BD702","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909705552243,"sku":"CARRIE-C50A302064-TRANSFORMER-HT01BD702-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-HT01BD702_eb0be124-fe27-49f1-b24c-1e628a71dbd5.jpg?v=1782940410","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a302064-transformer-h301d7","provider":"National HVAC Parts","version":"1.0","type":"link"}