{"product_id":"carrier-tchc2550hecmray602-transformer-h301d7","title":"OEM Carrier Transformer 460V\/24V 75VA for TCHC2550HECMRAY602","description":"\u003ch1\u003eOEM Carrier Control Transformer 460V\/24V 75VA for Model TCHC2550HECMRAY602\u003c\/h1\u003e\u003cp\u003eThis genuine OEM Carrier transformer (part #HT01BD702) is the factory-specified replacement for the \u003cstrong\u003eCarrier TCHC2550HECMRAY602\u003c\/strong\u003e commercial HVAC system. The transformer steps down the 460V primary supply voltage to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coils, and safety switches. When this transformer fails, the entire control circuit goes dark: the system will not respond to thermostat calls, safety shutdowns cannot operate, and the unit will appear completely dead despite line voltage being present at the disconnect.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 460V AC Primary | 24V AC Secondary | 75VA Rated | Steel core with copper windings | Compact footprint: approx. 4.3\" × 3.25\" × 3.5\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part. OEM transformers are wound and rated to exact VA tolerances, preventing nuisance tripped breakers and control board damage that undersized generic units can cause on commercial equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — This unit operates on 460V primary voltage. All power must be locked out and tagged before servicing. Tools required: multimeter, screwdrivers, wire strippers, and proper PPE. Installation by a licensed HVAC\/R technician is strongly recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer 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\u003eTCHC2550HECMRAY602\u003c\/strong\u003e commercial system. Verify your unit's primary voltage (460V), secondary voltage (24V), and minimum VA load before ordering. If you have questions about fitment, our technical team confirms compatibility before you purchase — just reach out. Order now and get same-day shipping on this hard-to-find commercial transformer.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640271262067,"sku":"CARRIE-TCHC2550HECMRAY602-TRANSFORMER-HT01BD702","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640271294835,"sku":"CARRIE-TCHC2550HECMRAY602-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_cab7a45c-95ae-49a6-a9c5-c6bd2fe29a62.jpg?v=1782942766","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc2550hecmray602-transformer-h301d7","provider":"National HVAC Parts","version":"1.0","type":"link"}