Functional Devices RIBH2C Relay

The Functional Devices RIBH2C Relay is a heavy-duty, pre-wired 10 Amp pilot control relay designed for reliable switching in building automation and HVAC control systems. This enclosed relay features two SPDT (Single Pole Double Throw) contacts, providing the versatility needed for managing multiple independent loads or creating interlocking logic in commercial building automation environments. Built for the rigors of field installation, the unit is housed in a plenum-rated NEMA 1 enclosure with a 0.75-inch NPT nipple for direct mounting to electrical junction boxes or HVAC air handlers.

Engineered to interface seamlessly with various power sources, the RIBH2C supports a wide-range high-voltage coil input of 208-277 Vac as well as a flexible 10-30 Vac/dc input for low-voltage control circuits. This dual-coil design makes it the preferred double pole relay for technicians working on 208V fans, 277V lighting circuits, and 24V DDC controllers. The integrated LED status indicator provides immediate visual confirmation of relay activation, significantly reducing troubleshooting time during HVAC system diagnostics and startup. With gold flash contacts and a mechanical life rating of 10 million cycles, this 10A pilot relay ensures long-term switching stability for critical energy management applications.

• Dual SPDT Configuration: Allows for simultaneous control of two separate circuits, ideal for fan-status and damper-actuation logic.
• Flexible Multi-Voltage Coil: Eliminates the need for multiple stock items by supporting 10-30 Vac/dc and 208-277 Vac inputs.
• Plenum-Rated Enclosure: Certified for use in ceiling spaces and air ducts, meeting strict fire safety standards for HVAC duct repair and installation.
• Pre-Wired Labor Savings: Features 16-inch, 600V color-coded leads to speed up wiring and minimize onsite labor costs.
• Reliable Visual Feedback: External LED allows technicians to verify relay state without opening the enclosure or probe-testing.

• Can the RIBH2C be used to switch 277V lighting loads? Yes, the 10-amp resistive rating at 277 Vac makes it suitable for many lighting and ballast applications.
• What is the difference between the RIBU2C and the RIBH2C? While both provide 2 SPDT 10A contacts, the RIBH2C is specifically designed for 208-277V high-voltage inputs, whereas the RIBU2C targets 120V circuits.
• Is the relay suitable for inductive motor loads? It is rated for 1/3 HP at 120-240 Vac (N/O) and 1/4 HP at 277 Vac, making it effective for small fractional horsepower motors and pilot duty control.

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.