{"product_id":"carrier-tchc1150hefmradcr601-transformer-h301d7","title":"OEM Carrier Transformer 460V Pri 24V Sec 75VA — TCHC1150HEFMRADCR601","description":"\u003ch1\u003eOEM Carrier Transformer 460V Primary \/ 24V Secondary 75VA for Model TCHC1150HEFMRADCR601\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier control transformer (part number \u003cstrong\u003eHT01BD702\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier TCHC1150HEFMRADCR601\u003c\/strong\u003e commercial HVAC unit. The transformer steps down the 460V line voltage to the 24V signal used by your thermostat, control board, contactors, and safety circuits. When this component fails, the entire low-voltage control circuit goes dead — the system will not respond to thermostat calls, contactors won't energize, and diagnostic LEDs may go dark entirely.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 460V AC primary voltage | 24V secondary voltage | 75VA capacity | Compact steel-core housing | Copper windings for maximum thermal efficiency and longevity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM part with factory-matched VA rating and insulation class. Generic transformers frequently ship with undersized VA ratings or looser voltage tolerances, which can starve sensitive control boards of clean 24V power and cause intermittent faults or premature board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — This unit operates at 460V; always disconnect and lock out power before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, and appropriate wire connectors. Photograph all wiring connections before removal. Due to the high-voltage primary side, installation by a licensed HVAC technician or electrician is strongly recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders ship same business day from our warehouse when placed before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier TCHC1150HEFMRADCR601\u003c\/strong\u003e commercial rooftop\/applied HVAC system. Always verify your unit's voltage rating and VA requirement on the equipment data plate before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — call or chat today and we'll get you the right part, fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640280273267,"sku":"CARRIE-TCHC1150HEFMRADCR601-TRANSFORMER-HT01BD702","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640280306035,"sku":"CARRIE-TCHC1150HEFMRADCR601-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-transformer-control-HT01BD702_e2d1cef4-9098-45a7-8992-f1634f8e43b6.jpg?v=1782942746","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc1150hefmradcr601-transformer-h301d7","provider":"National HVAC Parts","version":"1.0","type":"link"}