Trane TRR1122 Transformer

For service professionals maintaining Trane and American Standard residential or commercial packages, the Trane TRR1122 Transformer is the heavy-duty OEM solution for reliable 24V control circuits. This 40VA HVAC transformer is engineered to convert 200/230V primary input down to a stable 24V secondary output, providing the necessary low-voltage power for contactors, relays, and digital thermostats. With its foot-mount design and compact 4.59-inch length, it fits seamlessly into tight control panels found in air handlers and condensing units. Utilizing a genuine Trane replacement part ensures that the electrical specs precisely match the system’s original engineering requirements, preventing the premature failure of sensitive electronics often caused by the fluctuating voltage of generic alternatives. Whether you are troubleshooting a dead control board or replacing a burnt coil, this 1.31 lb unit provides the 200/230V to 24V conversion needed for high-demand cooling and heating applications.

• OEM Compatibility: Replaces multiple previous part numbers including TRR1557 and TRR1322, ensuring an exact fit.
• Optimized Power Delivery: Provides 40VA of power, supporting multiple low-voltage components simultaneously without voltage sag.
• Durable Foot-Mount: Features a rugged base for secure attachment in high-vibration air handler environments.
• Precise Electrical Specs: Specifically designed for 200/230V primary configurations typical in North American HVAC installations.

What is the secondary amperage for this model?
With a 40VA rating at 24V, this transformer supports approximately 1.66 amps on the secondary side, sufficient for standard control circuits.

Can I use this for a 120V system?
No, this unit is built specifically for 200/230V primary input. For 120V applications, check the system wiring diagram for the appropriate multi-tap or dedicated 120V transformer.

Does this include a built-in circuit breaker?
This is a standard step-down transformer; it is recommended to install a 3-amp inline fuse on the secondary side to protect the coil from shorts in the field wiring.

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.