CR4120S-25

Current Sensors Overview

The CR4120S-25 is a True RMS AC current transducer manufactured by CR Magnetics Inc. It features a split core design with a window diameter of 1.13 inches and supports a primary current rating of 25A. The device operates within a frequency range of 20 Hz to 5 kHz and provides a 4-20 mA DC output signal. This component is engineered for accurate measurement of non-sinusoidal AC waveforms, including chopped and phase-fired control signals.

Current Sensors Feature Summary

• True RMS measurement capability for accurate reading of complex AC waveforms
• Split core construction allowing installation without disconnecting conductors
• Designed specifically for non-sinusoidal applications such as phase-fired controls

Current Sensors Applications

• Phase-fired control systems
• Chopped wave circuit monitoring
• Industrial power quality analysis

Current Sensors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct configuration. Confirm that the required output signal matches the standard 4-20 mA DC specification. Check for any additional mounting hardware requirements or accessory compatibility before finalizing the procurement order.

Current Sensors Selection Notes

Select this model when precise measurement of distorted AC currents is required in industrial settings. Ensure the operating frequency falls within the 20 Hz to 5 kHz range. Verify that the primary conductor size fits within the 1.13-inch split core aperture. Consider the 25A rating relative to the maximum expected load current.

Current Sensors Part Context

This part belongs to the CR4120S series of True RMS AC split core current transducers. The series is characterized by its ability to handle non-linear loads and provide reliable analog output. The CR4120S-25 variant specifically denotes the 25 Ampere current rating configuration within this product family.

Current Sensors Replacement Considerations

Consult official cross-reference data for direct substitutes. Ensure replacement units maintain the same True RMS functionality and 4-20 mA output type. Verify physical dimensions and window diameter compatibility for existing installations.