Functional Devices RIBXLSRA Sensor

The Functional Devices RIBXLSRA is a robust enclosed current sensor and relay combination designed for precise motor status monitoring and control in building automation systems. This "Relay in a Box" (RIB) solution integrates a 10 Amp SPST relay with an adjustable solid-core AC sensor, allowing contractors to toggle loads while simultaneously receiving current-sensing feedback. Engineered with a 10-30 Vac/dc coil, this unit is highly versatile for interfacing with various controllers. The adjustable trip point spans 1.25 to 150 Amps, providing the flexibility needed to calibrate for specific motor full-load amps (FLA). Built for demanding environments, the NEMA 1 enclosure features a plenum rating and high/low voltage separation to ensure code compliance and simplified wiring. An integrated override switch allows for manual control during system testing or maintenance, while LED indicators provide immediate visual confirmation of relay activation and current trip status, making it a reliable choice for HVAC motor interlocking and load status applications.

• Streamlined Installation: Combines a current switch and control relay in one pre-wired housing, reducing labor and terminal connections.
• Field Adjustability: Features an adjustable threshold of 1.25-150A to accurately detect belt breaks or motor failures.
• Manual Override: Includes a Hand-Off-Auto (HOA) switch for easier commissioning and troubleshooting without software commands.
• Universal Coil Voltage: Operates on a wide 10-30 Vac/dc input, making it compatible with most 24V control circuits.
• Safety Certified: UL Listed (UL916 and UL864) for energy management and fire protective signaling systems.

How do I set the adjustable trip point on the RIBXLSRA?
To calibrate, run the motor at normal load and turn the adjustment potentiometer until the current sensor LED just illuminates. This ensures the solid-state contact accurately reflects the motor’s operational status.

Can this relay be used for interlocking exhaust fans with supply fans?
Yes, the RIBXLSRA is commonly used in motor interlocking applications where the current sensed on one motor triggers the relay to start another piece of equipment.

What is the maximum voltage for the current sensor ring?
The remote solid-core sensor is rated for up to 600V, allowing it to be used with high-voltage motor leads while maintaining safe isolation for the Class 2 control circuit.

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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.