Functional Devices RIB TR300VA002 Transformer

The Functional Devices RIB TR300VA002 is a heavy-duty, multi-tap class 2 transformer engineered for reliable power distribution in industrial and commercial HVACR control circuits. Featuring a 300VA power rating, this unit handles significant inductive loads while maintaining stable 24Vac secondary voltage. The primary side is versatile, supporting 480/240/208/120Vac inputs, making it a standard stock item for technicians servicing diverse electrical environments. Built with dual end-bell openings for simplified wiring and a secure foot mount configuration, it integrates seamlessly into control panels. The inclusion of an integrated circuit breaker provides essential over current protection, preventing damage to downstream controllers or actuators during a fault. This step-down transformer is designed for high-duty cycles where voltage stability and thermal management are critical for system uptime.

Key Benefits

• Multi-Tap Primary: Supports 120, 208, 240, and 480Vac for maximum site flexibility.
• Integrated Protection: Manual reset circuit breaker eliminates the need for external fusing on the secondary side.
• High VA Capacity: 300VA rating allows for powering multiple dampers, valves, or large controller arrays.
• Durable Construction: Dual end-bells protect internal windings while providing clean 1/2-inch NPT conduit hubs.
• Reliable Mounting: Rigid foot mount design ensures stability in high-vibration mechanical rooms.

Common Questions

How do I reset the circuit breaker on the TR300VA002?
The integrated breaker features a manual reset button; if tripped due to an overcurrent or short circuit, verify the load requirements and press the button to restore power.

Is this transformer rated for outdoor use?
This is an open-style transformer with end-bells; it should be installed within a secondary NEMA-rated enclosure if used in outdoor or high-moisture environments.

Can I use this for 24VDC applications?
No, this unit outputs 24Vac. If your controls require DC power, a separate bridge rectifier or switching power supply is necessary downstream.

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.