Functional Devices-RIB TR375VA001 Transformer

For large-scale HVAC and building automation systems, the Functional Devices-RIB TR375VA001 Transformer provides a high-capacity power solution. This 375VA control transformer is designed to convert a 120VAC primary input to a 24VAC secondary output, making it an essential component for driving heavy-duty relay logic, magnetic switches, and extensive I/O circuits. As a direct replacement for the AE-205, this unit features a robust split-bobbin construction to ensure superior isolation and reliable performance in demanding environments. The dual bottom openings and foot-mount design allow for versatile installation within standard panels, while its wide operating temperature range of -30°F to 140°F ensures stability in mechanical rooms or unconditioned spaces. With its UL5085-2 listing, this 120V to 24V step-down transformer meets rigorous safety standards for commercial and industrial 24V power supply applications, providing a 100,000-hour MTBF for long-term operational consistency.

Key Benefits

• High Power Capacity: Delivers 375VA of power, sufficient for multiple HVAC 24VAC controls and high-draw peripherals without voltage drop.
• Universal Compatibility: Serves as a technical replacement for the AE-205 transformer, ensuring a seamless fit for legacy system upgrades.
• Simplified Wiring: Features color-coded wire leads with a 7-inch typical length for rapid termination and identification.
• Rugged Reliability: Built with a split-bobbin design to prevent electrical interference and enhance safety in heavy-duty control panels.

Common Questions

Can this transformer be used for Class 2 circuits?
No, due to the high 375VA output, this model is not Class 2 rated. It is designed for general-purpose applications where higher current loads are required beyond the 100VA limit of Class 2 systems.

Does this unit include built-in overcurrent protection?
The TR375VA001 does not include an internal circuit breaker or fuse. It is recommended to install external overcurrent protection on the secondary side to protect downstream 24V components.

What are the mounting requirements for this transformer?
This is a foot-mounted unit featuring dual bottom openings for flexible conduit entry. It is typically installed in NEMA-rated enclosures for building automation or industrial control systems.

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.