Functional Devices RIBU1S Relay

The Functional Devices RIBU1S is a versatile, prepackaged enclosed pilot relay designed to streamline Building Automation Systems (BAS) and HVAC/R control applications. This 10 Amp SPST-NO relay features a multi-voltage coil that accepts 10-30 VAC/DC or 120 VAC, providing field flexibility for technicians working with varied control power sources. Its NEMA 1 rated enclosure ensures protection for internal components while the integrated Hand-Off-Auto (HOA) override switch allows for manual circuit testing or emergency bypass without additional wiring. Built with a 1/2" NPT nipple for easy mounting to standard junction boxes, this RIB relay eliminates the need for separate relay sockets and DIN rails, reducing labor time and installation errors in lighting control and motor load setups.

• Universal Coil Compatibility: Operates on 10-30V AC/DC or 120V AC, simplifying inventory for multiple job sites.
• Manual Override Switch: Integrated HOA switch allows for direct control of the load during commissioning or troubleshooting.
• Contractor-Ready Design: Pre-wired with color-coded 16-inch leads and a 1/2" NPT hub for immediate installation.
• Durable Performance: Rated for a 10-million-cycle mechanical life and features a gold-flash contact for reliable low-voltage signals.
• Internal LED Indicator: Provides immediate visual confirmation of the relay status when the coil is energized.

• Can the RIBU1S be used for motor control? Yes, it is rated for 1/3 HP at 120-240 VAC, making it suitable for small fan motors and pump controls.
• Does this relay require a separate enclosure? No, the RIBU1S is a self-contained unit with a plenum-rated housing, ready for direct mounting to a conduit knockout.
• Is this model normally open or normally closed? This specific model is SPST-NO (Normally Open). For the normally closed version, refer to the RIBU1S-NC.

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.