Functional Devices RIB RIBM2401SB Relay

The Functional Devices RIBM2401SB is a heavy-duty, 4-inch track mount relay designed for demanding commercial and industrial HVACR control circuits. As a veteran-preferred 20 Amp SPST relay, this unit features a versatile multi-voltage coil that accepts 24 Vac/dc or 120 Vac inputs, eliminating the need for multiple stocked parts on your service truck. The integrated manual override switch (Closed/Open/Auto) is an essential tool for field technicians, allowing for immediate load testing or emergency bypass without needing to jump terminals.

Engineered for high-cycle reliability, the RIBM2401SB provides a 10-million-cycle mechanical life and is housed in a compact, track-ready form factor that simplifies panel building and control logic expansion. The visible LED status indicator provides instant diagnostic feedback by confirming when the relay is activated. Whether you are managing lighting loads, motor starters, or complex building automation system (BAS) interfaces, this Relay in a Box (RIB) module ensures clean switching and robust 20A contact ratings for resistive and inductive applications.

• Universal Coil Compatibility: Operates on 24 Vac/dc or 120 Vac, reducing inventory overhead for standard HVAC control relays.
• On-Board Manual Override: Features a 3-position switch for streamlined troubleshooting and manual circuit control.
• High-Current Capacity: Rated for 20 Amp resistive loads and up to 2 HP at 277 Vac, suitable for direct motor switching.
• Rapid Installation: Designed for 4-inch MT4 mounting track, facilitating high-density relay packaging in control panels.
• Durable Construction: Built to operate in extreme environments from -30°F to 140°F with 5-95% non-condensing humidity.

• Can this relay be used for 208-277 Vac applications? While the coil is restricted to 24V or 120V, the SPST contacts are rated to switch loads up to 277 Vac.
• What does the LED indicate? The red LED glows when the relay coil is energized and the contacts have successfully transferred (if the override is in Auto).
• Is the mounting track included? This module is designed for track mounting; however, the MT4 series track is typically sold separately or as part of a larger enclosure assembly.

This item is not eligible for free shipping.

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.