OEM Carrier 50VA Control Transformer P201-35150 for Model YAC60140YAC302AT

This is the genuine OEM replacement control transformer for the Carrier YAC60140YAC302AT HVAC system. The transformer steps down incoming line voltage (120/208/240 VAC) to safe low-voltage output (12/24 VAC) that powers the system's control board, thermostat, and all low-voltage circuit components. When this transformer fails, the result is typically a completely unresponsive system — blank thermostat display, no fan, no heat or cooling — because the entire 24V control circuit loses power. A shorted transformer may also trip a circuit breaker or blow a low-voltage fuse repeatedly.

• Specs: 50 VA rating | Primary: 120/208/240 VAC | Secondary: 12/24 VAC | 60 Hz | Single phase | CSA listed | OEM Part # P201-35150
• OEM vs Generic: This factory-authorized Carrier/Totaline OEM transformer is wound to exact VA and voltage tolerances. Generic aftermarket units frequently underperform rated VA under sustained load, causing nuisance lockouts and premature control board failure.
• Install difficulty: 3/5 — Shut off all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire labels or tape. Always tag and photograph all wiring connections before removing the old transformer. Verify secondary output voltage (should read ~24–28 VAC unloaded) after installation before restoring full system power.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed and factory-specified for Carrier model YAC60140YAC302AT. Confirm primary voltage matches your unit's supply voltage (120V, 208V, or 240V) on the equipment data plate prior to ordering. Need fitment verification? Our HVAC parts specialists confirm compatibility before you buy — order with confidence and get your system back online fast.