{"product_id":"carrier-upflow100cu12a-transformer-fnyqxl","title":"OEM Carrier Transformer 50VA 120\/240V-24V for UPFLOW100CU12A","description":"\u003ch1\u003eOEM Carrier Control Circuit Transformer 50VA 120\/240V–24V for Model UPFLOW100CU12A\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #P201-35150) is the factory-specified step-down transformer for the \u003cstrong\u003eCarrier UPFLOW100CU12A\u003c\/strong\u003e air handler. Its sole job is to convert high-voltage line power (120, 208, or 240 VAC) down to a safe 12 or 24 VAC to power your system's control board, thermostat, and all low-voltage control circuitry. When this transformer fails, nothing works — the thermostat goes dark, the system won't respond to calls for heat or cooling, and no fault codes are generated because the control board itself has lost power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 50VA rating | Primary: 120 \/ 208 \/ 240 VAC | Secondary: 12 \/ 24 VAC | Single-phase | 50\/60 Hz | Screw terminals | 4-wire (White=Common, Black=120V, Red=208V, Orange=240V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM Totaline\/Carrier unit is factory-wound to exact VA and voltage tolerances. Undersized or off-tolerance generic transformers run hot, trip thermal cutoffs prematurely, and can damage sensitive control boards — a risk not worth taking on a 50VA part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker and verify zero voltage before disconnecting. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts. Photograph existing wire routing before removal. Always tap to the correct primary voltage leg matching your supply.\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 Direct OEM replacement for the Carrier \u003cstrong\u003eUPFLOW100CU12A\u003c\/strong\u003e air handler. Replaces legacy Carrier part number 35150. Verify your unit's supply voltage before selecting primary tap (120V, 208V, or 240V). Contact our team for fitment confirmation before ordering — we verify compatibility at no charge.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640240230771,"sku":"CARRIE-UPFLOW100CU12A-TRANSFORMER-P201-35150","price":56.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640240263539,"sku":"CARRIE-UPFLOW100CU12A-TRANSFORMER-P201-35150-GEN","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-P201-35150_323225f7-d7a3-4161-8c9d-93c829630c37.jpg?v=1782942961","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow100cu12a-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}