Trane TRR0185 Transformer

The Trane TRR0185 Transformer is a heavy-duty 250VA control power transformer engineered for high-demand industrial and commercial HVACR applications. Designed for versatile field integration, this multi-tap component supports a 230/460V primary voltage configuration, stepping down to a stable 115V secondary output. This specific voltage ratio is critical for powering unit controllers, solenoids, and contactors in large-scale chillers and air handling units where precise electrical regulation is non-negotiable.

As a veteran-grade OEM replacement transformer, the TRR0185 (often cross-referenced as TRR00185 or part number X13550057-01) features a robust core construction capable of handling significant inrush currents without saturation. Its compact footprint allows for seamless mounting in cramped control cabinets, ensuring that 115V control circuits remain energized even under fluctuating line conditions. For technicians servicing Trane equipment, this unit provides the necessary 250VA power rating to support auxiliary loads and legacy control boards across various rooftop and self-contained cooling structures.

• Industrial Dual-Primary: Handles 230V or 460V input, allowing for standardized stocking across different job site power requirements.
• High 25VA Capacity: Sufficient 250VA rating to manage multiple high-draw contactor coils and peripheral electronics simultaneously.
• Optimized Heat Dissipation: Built to withstand the elevated ambient temperatures common in outdoor rooftop enclosures.
• Stable 115V Secondary: Maintains tight voltage regulation to protect sensitive control circuits from sagging during compressor starts.

• Can this replace a lower VA rated transformer? Yes, the 250VA rating is the maximum load capacity; it will safely replace a 100VA or 150VA unit as long as the 230/460V to 115V ratio matches your system's specs.
• What happens if I miswire the primary taps? Feeding 460V into the 230V tap will immediately cause secondary overvoltage and thermal failure. Always verify your line voltage with a multimeter at the leads before final termination.
• Is this compatible with 24V control systems? No, this transformer outputs 115V AC. It is intended for systems where the controls, relays, or oil heaters operate on line-level secondary voltage, not standard 24V thermostats.

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.