{"product_id":"carrier-tchc2550hecmrap601-transformer-h301d7","title":"OEM Carrier Transformer 460V–24V 75VA for TCHC2550HECMRAP601","description":"\u003ch1\u003eOEM Carrier Control Transformer 460V–24V 75VA — HT01BD702 for Model TCHC2550HECMRAP601\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier control transformer (part# \u003cstrong\u003eHT01BD702\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eTCHC2550HECMRAP601\u003c\/strong\u003e commercial HVAC unit. The transformer steps down 460V line voltage to the 24V signal used by thermostats, contactors, control boards, and every other low-voltage component in the system. When it fails, the entire control circuit goes dead — no thermostat response, no staging, no operation at all. Replacing it with the correct OEM part is the fastest path back to full system function.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 460V AC primary | 24V secondary | 75VA power rating | Compact steel-core, copper-wound construction | Direct OEM drop-in replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and rated to Carrier's exact tolerances. Undersized or off-spec generic units can sag under load, causing erratic control-board behavior, nuisance tripping, and premature component failure across the entire low-voltage circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — This is a 460V primary circuit. Always shut off and lock out\/tag out the disconnect before opening the panel. Tools needed: flat-head and Phillips screwdrivers, wire stripper, multimeter. Confirm primary voltage at the transformer terminals before energizing. Licensed technician strongly recommended on 460V commercial equipment.\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 Fits Carrier model \u003cstrong\u003eTCHC2550HECMRAP601\u003c\/strong\u003e commercial HVAC equipment requiring a 460V primary \/ 24V secondary, 75VA control transformer. Always verify your unit's nameplate voltage before ordering. Have a question about fitment? Our parts team confirms compatibility before you buy — reach out today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640274833779,"sku":"CARRIE-TCHC2550HECMRAP601-TRANSFORMER-HT01BD702","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640274866547,"sku":"CARRIE-TCHC2550HECMRAP601-TRANSFORMER-HT01BD702-GEN","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-blower-motor-ecm-HT01BD702_330fecfb-2556-417a-908d-f6c25fdb43a7.jpg?v=1782942774","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc2550hecmrap601-transformer-h301d7","provider":"National HVAC Parts","version":"1.0","type":"link"}