The Functional Devices TR75VA005 Transformer is a heavy-duty solution for contractors requiring a multi-tap control transformer for building automation and HVACR systems. Built with a 75VA power rating, this unit facilitates reliable voltage reduction across various input requirements including 480V, 240V, 208V, and 120V primary voltage down to a standard 24Vac secondary voltage. The split-bobbin construction provides inherent isolation, while the integrated secondary circuit breaker offers essential overcurrent protection, eliminating the need for external fusing in many Class 2 applications. Designed for field versatility, the TR75VA005 features foot and single threaded hub mount options, ensuring a secure fit in standard electrical knockouts or flat surfaces. This multi-voltage transformer is UL Listed (Class 2), CE, and RoHS compliant, making it a reliable choice for driving relays, powering digital I/O circuits, or managing magnetic switches in industrial environments. Its 50/60 Hz frequency compatibility and wide operating temperature range (-30 to 140°F) ensure stable performance in demanding mechanical rooms. Key Benefits Multi-Tap Versatility: Supports 120, 208, 240, and 480 Vac inputs for diverse job site requirements. Integral Safety: Manual reset circuit breaker protects downstream 24V components from shorts and overloads. Flexible Mounting: 0.5-inch NPT threaded hub and foot mount tabs allow for various enclosure orientations. Contractor Grade: Color-coded pigtail leads (8-9.5 inches) simplify wiring and reduce installation time. High Reliability: MTBF of 100,000 hours at 77°F for long-term operational stability. Common Questions Can this transformer be mounted directly to an electrical box? Yes, the 0.5" threaded hub allows you to mount the unit through a standard knockout on an electrical panel or junction box. What does the circuit breaker protect? The integrated breaker provides overcurrent protection for the 24Vac secondary side, preventing damage to the transformer if a short occurs in the control circuit. Is this suitable for both 50Hz and 60Hz systems? Correct, this model is rated for 50/60 Hz frequency, making it compatible with various power grid standards. 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.
