CR4160-20

Current Sensors Overview

The CR4160-20 is a True RMS AC current transducer from the CR4160 series, designed for precise measurement of alternating currents. It features a two-element solid core configuration with a 0.26-inch window, supporting an input range of 0 to 20 A. The device provides a ratiometric output signal ranging from 4 mA to 20 mA, powered by a 24 VDC supply with a tolerance of +/- 10%. It operates within a frequency band of 20 Hz to 5 kHz and maintains an accuracy of ±0.5%. The unit supports bidirectional current detection and offers dual installation options via DIN rail or panel mounting.

Current Sensors Feature Summary

• True RMS measurement capability ensures accurate readings for chopped wave and phase-fired control systems
• Two-element solid core design allows for direct integration into existing electrical circuits without breaking the conductor
• Ratiometric 4-20 mA output provides stable signal transmission compatible with standard industrial control interfaces

Current Sensors Applications

• Phase-fired controlled heater monitoring
• Quickly varying motor load analysis
• Industrial power quality assessment in AC distribution systems

Current Sensors Procurement Notes

Verify that the specific order matches the CR4160-20 designation to ensure the correct 20 A input range. Confirm the requirement for a two-element solid core design versus single-element split-core variants available in the broader CR4100 series. Ensure the application environment falls within the specified 0°C to 60°C operating temperature range. Check that the load impedance meets the minimum requirements for the 4-20 mA output circuitry. Validate that the 24 VDC power supply polarity and voltage stability align with the component's specifications.

Current Sensors Selection Notes

Select this model when high-precision True RMS measurement is required for non-sinusoidal AC waveforms common in industrial drives. The two-element architecture offers enhanced performance compared to single-element versions for the same physical footprint. Consider the 20 A input limit to ensure the transducer is not overloaded during peak current events. The ratiometric output simplifies calibration processes in systems where reference voltages may fluctuate. Evaluate the DIN rail or panel mounting flexibility against available space constraints in the control enclosure.

Current Sensors Part Context

The CR4160-20 belongs to the CR Magnetics CR4100 series of True RMS current transducers. This series is engineered for applications demanding higher accuracy than standard transducers, particularly in complex power electronics environments. The CR4160 variant specifically utilizes a two-element design, distinguishing it from the single-element CR4110/CR4120 and three-element CR4170/CR4180 models. These devices are constructed to meet UL 61010B-1 and CAN/CSA-C22.2 safety standards, ensuring reliability in industrial settings.

Current Sensors Replacement Considerations

For equivalent functionality, consider the CR4160-15 or CR4160-30 if the input range differs. The CR4110-20S offers a split-core alternative but lacks UL recognition. Verify that any substitute maintains the True RMS characteristic and 4-20 mA output format to ensure compatibility with existing control systems.