York S1-025-19242-700 Transformer

The York S1-025-19242-700 Transformer is an essential component for technicians servicing industrial-grade HVACR systems that utilize high-voltage power distribution. This precision-engineered 460V to 24V transformer is designed to step down three-phase line voltage to the standard low-voltage signal required for contactors, relays, and control boards. With a 40VA power rating, this unit provides sufficient amperage to support complex control strings in commercial rooftop units and air handlers without the risk of nuisance tripping or thermal overload. The foot mount configuration offers a rigid, vibration-resistant installation footprint, ensuring the S1-025-19242-700 remains secure within the electrical cabinet during high-static blower operation. By utilizing this OEM York replacement transformer, contractors ensure full compatibility with Johnson Controls equipment, maintaining the intended electrical impedance and circuit protection characteristics of the original system design.

Key Technical Benefits

• Industrial Voltage Step-Down: Specifically designed for 460VAC primary systems, converting high-line voltage to a stable 24VAC secondary output.
• 40VA Load Capacity: Optimized for commercial control circuits, providing reliable power for multiple solenoid coils and digital controllers.
• Rugged Foot Mount: Standardized mounting bracket for easy HVAC transformer replacement and improved heat dissipation.
• Class 2 Safety Certified: Meets strict electrical standards for low-voltage power supplies in permanent HVACR installations.

Common Technical Questions

Can I use this 40VA transformer if my original part was rated for 30VA?
Yes. In control circuits, a higher VA rating is acceptable as it allows the transformer to handle more load without overheating, as long as the 460V primary and 24V secondary voltages remain the same.

How do I confirm this is the correct transformer for my York unit?
Refer to the data plate on your existing component. If it lists part number S1-025-19242-700 and requires a foot mount for a 460V application, this is the direct engineering match for your equipment.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.