Functional Devices-RIB TR40VA002 Transformer

For high-reliability power conversion in building automation and HVAC control systems, the Functional Devices RIB TR40VA002 Transformer provides a robust 40VA solution. This heavy-duty 120V to 24V step-down transformer is engineered for continuous-duty applications where stable secondary voltage is critical for powering sensors, driving relays, and managing digital I/O circuits. With its inherently limited overcurrent protection, this Class 2 UL 1585 listed unit eliminates the need for external fusing, simplifying the installation of 24Vac control circuits in demanding commercial environments.

The TR40VA002 features a versatile foot and dual threaded hub mount configuration, allowing for secure attachment to standard electrical knockouts or flat surfaces. This 40VA Class 2 transformer utilizes a split-bobbin construction to ensure superior isolation between the primary and secondary windings, maintaining a consistent 24Vac output even under fluctuating load conditions. Its 8-inch color-coded wire leads facilitate rapid termination, while the wide operating temperature range of -30°F to 140°F ensures dependable performance in unconditioned mechanical spaces. For contractors standardizing on RIB series transformers, this unit is a staple for local sub-panel builds and equipment upgrades.

• Dual-Mount Versatility: Equipped with both foot mounts and dual 1/2-inch NPT threaded hubs for flexible installation in enclosures or directly on junction boxes.
• Inherent Protection: Features inherently limited circuitry to protect against short circuits and overloads without requiring manual reset breakers.
• Industrial Durability: Split-bobbin design provides high dielectric strength and reliable 120Vac primary to 24Vac secondary voltage reduction.
• Standardized Wiring: Pre-stripped 8-inch leads use industry-standard color coding (White/Black primary, Yellow/White secondary) for error-free integration.

• What is the maximum load for this 40VA transformer? This unit is rated for 40VA at 24Vac, which provides approximately 1.67 Amps of secondary current for your control string.
• Can the TR40VA002 be used for both 50Hz and 60Hz systems? Yes, the Functional Devices TR40VA002 is rated for 50/60 Hz operation, making it compatible with various power grids.
• Is this transformer suitable for thermostats and HVAC controllers? Absolutely; as a Class 2 power source, it is the standard choice for powering 24V thermostats, zone dampers, and BAS controllers.

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.