The York S1-025-49713-000 is an OEM replacement control transformer engineered to deliver reliable, stable low-voltage power for York HVAC systems and compatible equipment. With a 208/240V primary and a 24V secondary at 75VA capacity, this transformer steps down line voltage to the 24V control circuit standard used throughout residential and light commercial HVAC applications — powering thermostats, contactors, relays, gas valves, and other control components.
Key Specifications
- Primary Voltage: 208/240V
- Secondary Voltage: 24V
- VA Rating: 75VA
- OEM Part Number: S1-025-49713-000
- Brand: York
Features & Benefits
- OEM-grade replacement ensures proper fit and function in York equipment
- 75VA capacity supports multiple control circuit loads simultaneously
- 208/240V dual primary voltage accommodates common commercial and residential supply voltages
- 24V secondary output meets the standard control voltage for thermostats, contactors, and solenoid valves
- Designed for long-lasting, dependable performance in demanding HVAC environments
Applications
- York residential and commercial HVAC systems
- Control circuit power supply for thermostats and relays
- Replacement for failed or degraded OEM transformers in York equipment








