OEM Carrier 50VA Control Transformer P201-35150 for Model YAC2460YAC508T

This is the genuine OEM step-down transformer for the Carrier YAC2460YAC508T HVAC system, sold under Carrier part number P201-35150 (also known as Totaline P201-35150). The transformer converts high-voltage line power — 120, 208, or 240 VAC — down to the 12/24VAC low-voltage signal that powers your system's control board, thermostat, and all 24V safety circuits. When this transformer fails, the result is typically a completely unresponsive system: a blank thermostat display, a control board with no indicator lights, or a unit that powers on at the air handler but does nothing. Because it sits at the center of every low-voltage command in the system, a failed transformer is often misdiagnosed as a board failure — always test this part first.

• Specs: 50 VA rating | Primary voltage: 120 / 208 / 240 VAC (multi-tap) | Secondary voltage: 12/24 VAC | 60 Hz single-phase | CSA listed | Dimensions: 3.8" L × 3.1" W × 2.2" H
• OEM vs Generic: This is a factory-authorized Carrier / Totaline part, wound to exact VA and voltage tolerances. Off-brand transformers often run hot at full load, trip thermal cutouts prematurely, and can under-drive 24V boards — causing erratic faults that are nearly impossible to diagnose.
• Install difficulty: 3/5 — Line-voltage wiring is involved. Turn off the disconnect and verify zero voltage with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, wire nuts. Photograph all wiring connections before removal. Confirm correct primary tap (120V or 240V) matches your supply voltage.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Factory-specified transformer for Carrier model YAC2460YAC508T. The multi-tap primary (120/208/240V) makes this part suitable for both residential and light-commercial voltage configurations. Verify your line voltage and VA draw before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — no guesswork, no returns.