OEM Carrier 50VA Control Transformer P201-35150 for Model YAC2460YACX108T

This is the genuine OEM step-down transformer for the Carrier YAC2460YACX108T, factory part number P201-35150. The transformer converts incoming line voltage (120/208/240 VAC) down to a safe 12/24 VAC to power the system's control board, thermostat circuit, and all low-voltage components. When this transformer fails, the entire control circuit loses power — you'll typically see a completely blank thermostat, no response to any system commands, or a tripped fuse on the control board. Replacing it with the exact OEM unit restores proper control-circuit voltage and protects sensitive downstream electronics from over-voltage damage.

• Specs: 50 VA rating | Primary: 120/208/240 VAC multi-tap | Secondary: 12/24 VAC | Single phase | 60 Hz | CSA listed | Dimensions: 3.8" L × 3.1" W × 2.2" H
• OEM vs Generic: This OEM unit is manufactured to exact Carrier factory tolerances. Generic transformers often use thinner gauge windings and lower-grade core laminations, which can cause voltage sag under load, nuisance board resets, and premature failure — particularly on multi-stage systems where control-circuit demand is highest.
• Install difficulty: 3/5 — Disconnect all power (line and low-voltage) before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 24V output before reconnecting boards). Label and photograph all wiring connections prior to removal. Improper wiring can instantly damage the control board.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as the factory-specified replacement for Carrier model YAC2460YACX108T. Also sold under the Totaline brand (same part). Verify your existing transformer's VA rating and primary/secondary voltage from the unit's data plate or wiring diagram before ordering. Need fitment confirmation? Contact our HVAC parts specialists before you buy.