Functional Devices RIBD01BDC Relay

The Functional Devices RIBD01BDC is an industrial-grade 120V 20A SPDT Time Delay Relay engineered for precision control in building automation and HVACR systems. This enclosed relay allows for versatile field adjustments, supporting Delay on Make, Delay on Break, and Delay on Make/Break modes using an onboard DIP switch and potentiometer. Designed for high-reliability applications, it features a Class 2 dry contact input, allowing technicians to interface low-voltage controllers or thermostats with high-amperage loads. As the designated RIBD01BDC-DOB direct replacement, this unit integrates seamlessly into existing setups while providing a broader timing range from 6 seconds to 20 minutes. The NEMA 1 enclosed relay housing ensures safety and protection for the internal circuitry, while the SPDT continuous duty coil supports 20 Amp resistive loads at 277 Vac. Whether managing 1 HP motor loads or pilot duty circuits, this enclosed time delay relay provides the rugged durability needed for demanding contractor environments.

• Universal Replacement: Specifically serves as the direct RIBD01BDC-DOB direct replacement, simplifying field service and inventory.
• Multi-Mode Timing: Field-selectable Delay on Make and Delay on Break functionality covers various fan, pump, and light control sequences.
• High Load Capacity: Rated for 20 Amp resistive and 2 HP at 277 Vac, making it suitable for heavy-duty HVACR equipment.
• Visible Status: Integrated LED indicators provide real-time feedback; a red LED for relay activation and a flashing pink LED for timing status.
• Plenum Rated: Built with a 1/2" NPT nipple and UL listed for use in plenum spaces, meeting strict building safety codes.

How do I adjust the time delay range?
The unit utilizes a 4-position DIP switch to select the base timing range (6s-20m) and a single-turn potentiometer for fine-tuning the specific delay within that range.

Can this relay control a motor?
Yes, it is rated for 1 HP at 120 Vac and 2 HP at 277 Vac, providing robust control for fans and small motors.

What is the benefit of the dry contact input?
The Class 2 dry contact input allows the relay to be triggered by a simple switch or BAS controller without requiring additional power at the trigger source.

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.