The Functional Devices RIBXGHF is a high-performance split-core current sensor engineered for precise AC current monitoring in commercial and industrial HVACR environments. Designed to interface directly with PLC or BMS systems, this solid-state current switch features an adjustable threshold of 0.75 to 150 Amps, allowing for versatile field calibration. The RIBXGHF series is particularly effective for status monitoring of 120VAC motors, fans, and pumps, providing a reliable digital output when the sensed current exceeds the user-defined setpoint. Its split-core architecture enables seamless installation around existing wiring without disconnecting the circuit, significantly reducing labor time during retrofits. Built for heavy-duty applications, the Functional Devices RIB current sensor ensures long-term stability and immunity to EMI/RFI interference, making it a staple for contractors prioritizing load status detection and preventative maintenance cycles. Key Benefits for the Contractor: Split-Core Versatility: Eliminates the need to break the circuit or disconnect lugs, facilitating faster current switch installation. Adjustable Trip Point: Multi-turn potentiometer allows for fine-tuning the current switch sensitivity to prevent false triggering on fluctuating loads. Self-Powered Design: Operates directly from the induced current of the monitored line, removing the need for an external power supply. High Amperage Capacity: Capable of sensing up to 150 Amps, covering a broad spectrum of HVAC motor monitoring requirements. Compact Footprint: Fits easily within crowded electrical panels and starter enclosures. Common Technical Questions: How do you calibrate the trip point on the RIBXGHF? With the load running at normal operating amperage, turn the adjustment screw until the status LED changes state. We recommend setting the threshold approximately 10-15% below the normal run current to ensure reliable load loss detection. Can this sensor be used with Variable Frequency Drives (VFDs)? Yes, the RIBXGHF is effective for monitoring the output of a VFD, though caution should be exercised regarding the frequency range. It is optimized for 50/60Hz applications; ensure the VFD carrier frequency is compatible with solid-state sensing to maintain accuracy. What is the maximum voltage for the sensed conductor? While the internal circuitry is isolated, the sensed conductor should not exceed 600VAC to maintain proper dielectric insulation between the core and the wire. 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.
