Functional Devices-RIB TR100VA002 Transformer

The Functional Devices RIB TR100VA002 is a robust 100VA class 2 transformer engineered for high-demand HVACR control circuits. Designed with a primary voltage of 120 VAC and a secondary output of 24 VAC, this unit is a direct AE-202 replacement for technicians requiring reliable step-down power. Featuring a dual-mount configuration with a foot mount and 2-hub design, it simplifies installation in tight junction boxes or external panels. This step-down control transformer includes a built-in manual reset circuit breaker on the secondary side, providing essential overcurrent protection for downstream controllers and actuators. The split-bobbin design ensures superior dielectric strength and isolation between windings. Its UL listed construction meets strict safety standards for commercial and industrial 24 volt power supply applications, making it an essential component for powering multiple terminal units, dampers, or heavy-duty relays from a single source.

Key Benefits

• Dual-Hub Versatility: The 2-hub and foot mount design allows for flexible mounting orientations in 4x4 boxes or directly on equipment chassis.
• Enhanced Protection: Integrated manual reset breaker prevents transformer burnout during short circuits or load spikes, reducing field troubleshooting time.
• High Power Capacity: The 100VA rating supports larger control loops and multiple peripheral devices without significant voltage drop.
• Industry Compatibility: Seamlessly replaces legacy Functional Devices AE-202 models and most standard 120V to 24V transformers in the same power class.

Common Questions

Can I use this transformer to replace a lower VA rated unit?
Yes, as long as the primary/secondary voltages match. Moving from a 40VA or 75VA unit to this 100VA model provides more headroom and helps prevent overheating in expanded control systems.

Does this unit require an external fuse?
No, the TR100VA002 features a built-in manual reset breaker on the secondary side to protect the internal windings and secondary wiring from overcurrent conditions.

How do I mount this to a standard electrical box?
The dual-hub configuration allows one hub to be threaded into a standard 1/2-inch knockout while keeping the wiring secure and isolated within the enclosure.

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.