Functional Devices RIBU1C Relay

The Functional Devices RIBU1C Relay is a trade-standard enclosed pilot relay designed for reliable HVAC control circuit isolation and load management. Engineered as a versatile "relay in a box," this SPDT relay features a multi-voltage coil that accepts 10-30VAC/DC or 120VAC, making it a universal solution for building automation systems (BAS) and motor control applications. With a 10 amp resistive contact rating at 277VAC, the RIBU1C provides a robust interface for switching fans, pumps, and lighting loads. This unit serves as a direct cross-reference replacement for the CVR-11C, FUN-RIB-24-01C, and RIB2401C, ensuring seamless integration into existing NEMA 1 or plenum-rated environments. The pre-wired design includes 16-inch, 600V rated leads and an external LED indicator for immediate visual verification of relay status, reducing diagnostic time for field technicians. Its continous duty coil and mechanical life of 10 million cycles ensure long-term performance in demanding commercial settings.

• Universal Coil Compatibility: Operates on 10-30VAC/DC or 120VAC to simplify inventory and installation across varied control platforms.
• Labor-Saving Design: Pre-enclosed in a plenum-rated housing with a 1/2" NPT nipple, eliminating the need for separate sockets or mounting rails.
• Visual Diagnostics: Integrated LED status indicator allows for rapid troubleshooting of the control signal and contact state.
• Cross-Industry Versatility: Gold-flash contacts and 10A switching capacity make it suitable for fire alarm systems, energy management, and industrial automation.

Can the RIBU1C switch electronic ballasts?
No, the RIBU1C is not rated for electronic ballast loads. For those specific applications, a dedicated ballast-rated relay like the RIB2401B is recommended to prevent premature contact failure.

Is the RIBU1C suitable for outdoor installation?
The standard RIBU1C carries a NEMA 1 housing rating. For outdoor or wash-down environments, it must be installed within a secondary NEMA 4 or NEMA 4X rated enclosure to protect against moisture.

How do I wire the dual-voltage coil inputs?
The relay features separate inputs for different voltages. Use the White/Blue and White/Yellow wires for 10-30V control signals, or the White/Black and White/Yellow wires for 120VAC signals. Never apply voltage to both sets of coil leads simultaneously.

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.