Functional Devices RIBXKTA Sensor

The Functional Devices RIBXKTA is a solid-state adjustable current sensor designed for accurate load monitoring and status feedback in demanding HVAC and industrial automation environments. Engineered with a split-core housing, this AC current transducer allows for installation without disconnecting the primary conductor, making it a preferred choice for retrofitting BMS (Building Management Systems) and motor control centers. It operates with a high-performance 0-5 Vdc output, providing a linear signal proportional to the sensed current across three field-selectable ranges. The device supports an adjustable sensing range of 0.5-10, 0-20, or 0-50 Amps, or alternatively, the high-range models handle up to 150 Amp current sensing. With a solid-core or split-core form factor option, the RIBXKTA ensures high accuracy for VFD monitoring and fan or pump status verification. Its self-powered design eliminates the need for external power supplies, simplifying wiring and reducing site labor costs for contractors.

Key Benefits

• Reduced Installation Time: The split-core design allows for easy mounting over existing conductors without breaking the circuit.
• Linear Output Signal: Provides a precise 0-5 Vdc analog signal for accurate integration with analog input cards.
• Internal Scaling: Features field-selectable jumpers to optimize resolution for small motors or large industrial loads.
• True Load Verification: Offers more reliable feedback than motor starters by detecting belt breaks or coupling failures through amperage monitoring.
• Industrial Durability: Rated for high-voltage environments, providing 600 Vac insulation for the monitored conductor.

Common Questions

How do I calibrate the zero and span for this sensor?
The RIBXKTA comes factory-calibrated for its linear ranges. You simply select the appropriate range via the onboard jumper and verify the 5 Vdc output at the maximum anticipated load. Fine-tuning the BMS controller offset is recommended for low-end accuracy.

Is this sensor compatible with Variable Frequency Drives (VFDs)?
Yes, this current transducer is designed to handle the distorted waveforms associated with VFD motor leads, though for best results, it should be installed on the line side or used within its specified frequency response range.

What is the maximum conductor size for the split-core housing?
The standard housing accommodates conductors up to roughly 0.75 inches in diameter, making it suitable for most THHN wire gauges used in 150 Amp circuits.

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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.