York S1-025-39925-000 Control Transformer Overview
The York S1-025-39925-000 is an OEM control transformer engineered for reliable voltage step-down in commercial and residential HVAC systems. Designed to convert a 460V primary supply to a 230V secondary output at 115VA, this transformer delivers stable, consistent power to control circuits, ensuring safe and dependable equipment operation.
Key Specifications
- Primary Voltage: 460V
- Secondary Voltage: 230V
- VA Rating: 115VA
- Brand: York (OEM Replacement Part)
- SKU: S1-025-39925-000
Features & Benefits
- OEM York replacement transformer for precise fit and performance
- Steps down 460V primary to 230V secondary for control circuit compatibility
- 115VA capacity supports a range of HVAC control loads
- Built to York’s exacting quality standards for long service life
- Direct replacement helps minimize equipment downtime
Application
This transformer is a direct OEM replacement for York HVAC systems requiring a 460V-to-230V step-down at 115VA. It is ideal for use in commercial rooftop units, air handlers, and other York equipment where control circuit voltage transformation is required. Always verify compatibility with your specific York unit model before installation.








