ARH-B22-D70

Current Sensors Overview

The ARH-B22-D70 is a Rogowski coil current sensor module manufactured by LEM USA Inc. It features a single-channel design intended for high-precision current measurement applications. The device operates within a frequency range of 50/60Hz and incorporates a 55Ohm resistance characteristic with an inductance of 180 µH. Designed for free-hanging or in-line mounting, the unit measures 56.01mm in length and 33.69mm in width, with a maximum seated height of 18.91mm. It utilizes wire leads measuring 1.5m for termination.

Current Sensors Feature Summary

• Rogowski coil technology for non-intrusive current sensing
• Single-channel output configuration
• Free-hanging in-line mounting capability

Current Sensors Applications

• Industrial current monitoring systems
• Power quality analysis equipment
• Electrical distribution protection circuits

Current Sensors Procurement Notes

Verify the exact part number suffix against official LEM documentation to ensure correct specifications. Confirm that the required termination style matches the standard wire lead configuration. Check for any specific environmental ratings if operating in extreme conditions. Ensure compatibility with existing signal conditioning interfaces before procurement.

Current Sensors Selection Notes

Select this model when a Rogowski coil format is required for AC current measurement at standard power frequencies. Consider the physical dimensions and wire lead length for integration into the target assembly. Verify that the single-channel architecture meets the system's monitoring requirements without needing additional multiplexing.

Current Sensors Part Context

This component belongs to the ART-B22 series from LEM, which focuses on current sense transformers. The ARH-B22-D70 variant specifically denotes the Rogowski coil implementation within this family, distinguished by its modular design and specific electrical characteristics suitable for industrial applications.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult LEM technical support for direct equivalents or updated series replacements.