Functional Devices RIBXKTF Sensor

The Functional Devices RIBXKTF is a robust, enclosed self-powered solid core current sensor engineered for high-accuracy load monitoring in demanding commercial HVACR environments. This fixed threshold current switch triggers at a low 0.25 Amp set point, making it an ideal choice for verifying the run status of small fractional horsepower motors, fans, and pumps. With a sensing range up to 150 Amps and a maximum sensing voltage of 600 VAC, the RIBXKTF provides reliable performance across a broad spectrum of power applications. The unit features an integrated SPST solid state contact that remains open when current is below the threshold and closes once sensed amperage exceeds 0.25A. Its terminal strip output accepts 14-22 AWG wire, simplifying field terminations without the need for additional wire nuts or complex splicing. Designed for durability, this UL Listed current sensor operates within a temperature range of -30 to 140°F, ensuring stable switching even in unconditioned mechanical rooms.

• Low 0.25A Fixed Threshold: Ensures sensitive detection of status for low-draw equipment and failing belt drives.
• Self-Powered Design: Inductive power from the monitored line eliminates the need for external power supplies or batteries.
• Solid Core Construction: Provides superior accuracy and long-term reliability compared to split-core alternatives in permanent installations.
• High Voltage Rating: Safely monitors lines up to 600 VAC, suitable for industrial motor control centers.
• Ratcheting Wire Clamp: Includes a secure wire clamp and removable mounting tab for stable, vibration-resistant installation.

What is the maximum switching capacity for the sensor contacts?
The internal solid-state switch is rated for 30 VAC/VDC at a maximum of 0.4 Amps. It is intended for signaling a BMS or DDC controller, not for switching heavy inductive loads directly.

Does this sensor require a separate power source to operate?
No, the RIBXKTF is self-powered. It derives the energy needed to operate the internal circuitry directly from the magnetic field of the conductor being monitored.

Can I use this on a VFD-controlled motor?
Yes, however, ensure the carrier frequency and minimum speed of the drive maintain at least 0.25A through the core to keep the sensor contact closed during operation.

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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.