Functional Devices TR100VA008 Transformer

The Functional Devices TR100VA008 is a multi-tap 100VA control transformer engineered for versatile integration into industrial and commercial automation systems. This heavy-duty step-down transformer features a flexible primary voltage range of 480/277/240/208Vac, accommodating a wide variety of line power configurations. It provides a stable 120Vac secondary voltage output, optimized for powering controllers, sensors, and magnetic switches in HVACR and building management environments. Designed for long-term reliability, the TR100VA008 specifications include an integrated circuit breaker over current protection, which allows for rapid manual resetting and eliminates the need for external fuse replacements during maintenance. The RIB series transformer utilizes a split-bobbin design to ensure superior isolation and thermal performance in ambient temperatures ranging from -30 to 140° F. For flexible installation, it supports both foot and dual threaded hub mount configurations, making it an ideal choice for contractors looking for a 100VA 480V to 120V transformer with a small footprint.

• Universal Multi-Tap Input: Simplifies inventory by supporting 480, 277, 240, and 208 VAC primary connections.
• Integrated Protection: Built-in manual-reset circuit breaker safeguards secondary circuits against shorts and overloads.
• Flexible Mounting: Dual 1/2" NPT hubs and foot-mount options allow for secure attachment to junction boxes or internal panels.
• Industrial Durability: UL5085-2 Listed and CE compliant with a high MTBF for critical control applications.

How do I wire the TR100VA008 for different primary voltages?
The unit comes with color-coded 8-inch leads. Technicians should refer to the wiring diagram on the nameplate to select the specific lead for your line voltage (e.g., 480V or 208V) and cap off the unused primary wires.

Can this transformer be used for continuous 100VA loads?
Yes, the Functional Devices TR100VA008 is rated for a continuous 100VA output, making it suitable for driving multiple relays, digital I/O circuits, and powering sensors simultaneously.

Is the circuit breaker on the primary or secondary side?
This model features the circuit breaker on the secondary output side to protect the sensitive control components from downstream electrical faults.

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.