Functional Devices TR50VA001 Transformer

For veteran technicians and building automation contractors, the Functional Devices TR50VA001 Transformer is a reliable workhorse designed for Class 2 control circuits. This 50VA rated unit features a 120Vac primary voltage and a consistent 24Vac secondary voltage, making it ideal for powering HVAC controllers, relays, and low voltage safety circuits. Built with a robust split-bobbin construction, it provides high-level isolation between primary and secondary windings to ensure long-term performance in demanding environments. For added safety and protection against overcurrent conditions, the secondary side is equipped with an integrated 3amp fuse. The TR50VA001 is engineered for versatile installation, supporting both foot mount and single threaded hub mount configurations (0.5-inch NPT), allowing it to be secured directly to electrical knockouts or flat surfaces within control panels.

• Dual Mounting Versatility: Secure the unit via the foot mount or utilize the single threaded hub for direct installation to electrical boxes.
• Integrated Circuit Protection: Features a built-in 3amp fuse to protect downstream low-voltage components from short circuits.
• HVAC Control Optimization: The 50VA capacity provides sufficient overhead for driving multiple relays, zone valves, or dampers in building automation systems.
• Broad Temperature Resilience: Reliable operation in extreme environments ranging from -30°F to 140°F.
• Color-Coded Pigtails: Includes 8-inch wire leads with 0.5-inch stripping for fast, clear connections in the field.

• Is the 3amp fuse replaceable? No, the integrated fuse is internal and not field-replaceable to ensure the integrity of the Class 2 safety rating.
• What is the MTBF for this unit? This transformer is rated for a 100,000-hour Mean Time Between Failures at 77°F, reflecting its heavy-duty design.
• Does it work on 50Hz systems? Yes, the TR50VA001 is rated for both 50Hz and 60Hz operation.
• What are the wiring colors? The primary 120Vac side typically uses White (Neutral) and Black (Hot), while the secondary 24Vac side uses Yellow and Yellow/White leads.

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.