{"product_id":"carrier-n6a48ng481452-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for N6A48NG481452","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model N6A48NG481452\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier N6A48NG481452\u003c\/strong\u003e packaged unit. Its primary function is to step down 120V line voltage to the 24V signal required by the thermostat, contactor coils, and control board. When this transformer fails, the entire control circuit goes dead — the thermostat loses power, nothing responds to a call for heating or cooling, and the system appears completely non-functional despite having line voltage present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | Class 2 output | OEM part number HT01BC116 | Direct factory-matched replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact factory VA and impedance specifications, ensuring reliable 24V output under full control-circuit load. Generic transformers with undersized VA ratings can sag voltage under load, causing erratic board behavior or contactor chatter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter to confirm 24V output after installation. Always photograph wiring before disconnecting leads from the primary and secondary terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the Carrier \u003cstrong\u003eN6A48NG481452\u003c\/strong\u003e packaged unit. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or component label before ordering. Our fitment team is available to confirm compatibility prior to purchase. Order now — this part ships today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909279601011,"sku":"CARRIE-N6A48NG481452-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909279633779,"sku":"CARRIE-N6A48NG481452-TRANSFORMER-HT01BC116-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-HT01BC116_c26e44f4-8e2a-4e32-ad38-54e06e7ba2a7.jpg?v=1782941755","url":"https:\/\/nationalhvacparts.com\/products\/carrier-n6a48ng481452-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}