CR4420S-150

Current Sensors Overview

The CR4420S-150 is a single-channel RMS AC current transducer manufactured by CR Magnetics Inc. It utilizes a split-core transformer design to measure alternating currents up to 150A. The device operates within a frequency range of 50Hz to 400Hz and features bidirectional polarization for accurate measurement in both directions. It requires a 24V DC supply voltage with a maximum current consumption of 45mA. The sensor provides an analog output signal, typically configured as a ratio or 4mA to 20mA current loop, ensuring compatibility with standard industrial monitoring systems.

Current Sensors Feature Summary

• Split-core transformer design allows for non-intrusive installation around existing conductors without circuit interruption.
• Bidirectional sensing capability enables accurate measurement of alternating current flow in both forward and reverse directions.
• RMS averaging technology ensures precise measurement of true root-mean-square values for AC waveforms.

Current Sensors Applications

• Industrial power distribution monitoring
• Motor control and protection systems
• Energy management and metering equipment

Current Sensors Procurement Notes

Verify the specific output configuration required for your application, as the CR4420S series may offer different output scaling options depending on the exact suffix or order code. Confirm that the operating environment falls within the specified temperature range and that the conductor size accommodates the split-core aperture. Ensure the load impedance matches the requirements for the selected output type to maintain accuracy.

Current Sensors Selection Notes

Select this model when a high-current capacity of 150A is required for AC measurements. Consider the split-core form factor if retrofitting into existing panels where breaking the primary circuit is not feasible. Compare against other series members like the CR4420S-75 or CR4420S-50 if lower current ratings suffice, noting that output types and sensitivity may vary across the product line.

Current Sensors Part Context

This component belongs to the CR4420S series of RMS AC current transducers from CR Magnetics Inc. The series is characterized by its use of adjustable transformers and modular packaging suitable for DIN rail or panel mounting. It is part of a broader family of current sensors designed for industrial automation and power quality applications, sharing common interface standards and mechanical dimensions with other variants in the lineup.

Current Sensors Replacement Considerations

Direct substitutes include other models within the CR4420S series such as the CR4420S-75 or CR4420S-50, provided the current rating difference is acceptable for the application. Cross-reference with the CR4420-150 if a fixed-core version is permissible, though installation methods will differ. Always verify pinout compatibility and output signal specifications before swapping components.