Functional Devices TR240VA001 Transformer

The Functional Devices-RIB TR240VA001 Transformer is a high-capacity 240VA control transformer designed for demanding commercial and industrial automation environments. This 120V to 24V step-down transformer provides a reliable secondary output of 24Vac from a standard 120Vac primary source, making it an essential component for powering multiple relays, controllers, and building management system (BMS) peripherals. Engineered with a robust split-bobbin construction, the unit operates efficiently across a frequency range of 50/60 Hz and sustains performance in extreme ambient temperatures ranging from -30°F to 140°F. Professional installers often utilize the TR240VA001 as a direct replacement for the AE-204 transformer, ensuring seamless integration into existing HVAC 24V transformer setups. This model features a versatile foot and single threaded hub mount configuration with a bottom opening, facilitating clean wire routing through 1/2-inch knockouts or surface mounting. It ships with 9.5-inch color-coded pigtail leads for rapid termination without the need for additional terminal blocks.

Core Technical Benefits

• High Power Density: Delivers 240VA of continuous power, suitable for driving large relay banks, actuators, and sensor networks that exceed the capacity of standard 40VA or 75VA units.
• Flexible Mounting: Equipped with dual-mounting capabilities including a foot mount for panel floors and a 1/2" threaded hub for secure attachment to electrical boxes.
• Industrial Durability: UL Listed construction ensures safe operation in 24V control circuit applications without the risk of early saturation or thermal failure.
• Simplified Wiring: Features pre-stripped pigtail leads and a bottom-opening design to minimize installation time in tight enclosures.

Common Questions

Is the TR240VA001 compatible with older AE-204 installations?
Yes, this unit is technically identical to the AE-204 and can be swapped directly into the same mounting footprint and electrical configuration.

Does this transformer include internal circuit protection?
No, this specific model is designed without over-current protection. Technicians should install an external fuse or circuit breaker on the secondary side to protect downstream 24Vac components from surges.

Can I use this transformer in unheated outdoor enclosures?
The TR240VA001 is rated for temperatures as low as -30°F, making it suitable for rooftops and unconditioned mechanical rooms, provided the enclosure is NEMA-rated for the environment.

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.

TR240VA001 is the cross of TR150VA002