OEM Carrier 50VA Control Transformer P201-35150 for Model YAC60140YAC401AC

The Carrier P201-35150 is the factory-specified 50VA step-down transformer for the YAC60140YAC401AC unit. Its job is to convert high-voltage line power (120/208/240 VAC) down to the safe 24V AC signal that runs your control board, thermostat, and all low-voltage switching circuits. When this transformer fails, the entire control circuit goes dark — symptoms include a completely unresponsive thermostat, a system that won't call for heating or cooling, or a tripped fuse on the secondary side that keeps blowing back repeatedly.

• Specs: 50VA rating | Primary: 120/208/240 VAC multi-tap | Secondary: 12/24 VAC | 60 Hz | Single-phase | CSA listed | Factory part number P201-35150
• OEM vs Generic: This is the genuine Carrier/Totaline factory part, wound to exact VA and voltage tolerances. Undersized or off-tolerance aftermarket transformers can overload under peak control-circuit demand, leading to repeat failures and potential board damage.
• Install difficulty: 2/5 — Shut off all power to the unit before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wires before disconnecting. Verify primary tap matches your supply voltage (120V vs 208/240V) before energizing.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement transformer for Carrier model YAC60140YAC401AC. Cross-references Totaline P201-35150. Confirm your unit's supply voltage and verify the data plate before selecting the correct primary tap. Questions about fitment? Our HVAC parts specialists are ready to verify compatibility before you order — ships today.