Functional Devices RIB02BDC Relay

The Functional Devices RIB02BDC is a performance-grade enclosed relay designed for high-voltage switching applications in commercial HVACR and building automation systems. Built with a 20 Amp SPDT contact rating, this pilot device operates reliably on a 208-277 Vac coil, making it ideal for controlling lighting loads, motor branch circuits, and electric heat stages. The pre-packaged design features a 1/2" NPT nipple for direct mounting to electrical boxes, reducing installation time and ensuring a clean, professional finish. The dry contact relay configuration allows for maximum flexibility when interfacing with DDC controllers or external power sources. Engineered for heavy-duty cycling, the NEMA 1 enclosure protects the internal switching components from debris, while the external LED provides immediate visual confirmation of the relay coil status. This Functional Devices RIB series component is a standard for contractors requiring a durable power control relay that eliminates the need for separate housings or complex mounting brackets.

Key Benefits

• 208-277 Vac Coil Voltage: Optimized for commercial power systems, providing versatile integration with heavy equipment circuits.
• Pre-Wired Lead Design: Simplifies field wiring with color-coded leads, ensuring accurate SPDT relay termination in high-density panels.
• UL Listed Enclosure: The durable housing meets safety standards for placement in air handling spaces and mechanical rooms.
• 20 Amp Contact Rating: Robust switching capacity handles inductive and resistive loads without premature contact pitting.
• Nipple-Mount Versatility: Direct attachment to knockouts allows for rapid retrofit or new construction deployment.

Common Questions

Can the RIB02BDC be used to switch 277V lighting circuits?
Yes, the 20 Amp rating and the 277 Vac coil compatibility make it a preferred choice for controlling high-voltage lighting ballasts and LED drivers via a control signal.

Is the LED indicator powered by the coil or the contacts?
The LED is integrated into the coil circuit, providing a clear indication that the control relay is energized, which is essential for rapid troubleshooting in the field.

What is the primary difference between the RIB01B and the RIB02B series?
The RIB02B series specifically addresses higher 208-277V coil requirements, whereas other models in the series target 120V or low-voltage 24V applications.

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.