ART-B22-D70

Current Sense Transformers Overview

The ART-B22-D70 is a non-invasive split core current sense transformer manufactured by LEM USA Inc. Designed for free hanging in-line mounting, this component operates within a frequency range of 50/60Hz. It features an inductance of 180 µH and a DC resistance (DCR) of 55 Ohm. The physical dimensions are 2.205 inches in length, 1.326 inches in width, with a maximum seated height of 0.744 inches. Termination is provided via wire leads measuring 1.5 meters.

Current Sense Transformers Feature Summary

• Non-invasive split core design allows for easy installation around conductors without circuit interruption.
• Free hanging in-line mounting configuration provides flexible integration into assembly structures.
• Wire lead termination facilitates direct connection to measurement or control circuitry.

Current Sense Transformers Applications

• Current sensing in AC power distribution systems
• Integration with microcontroller-based embedded applications
• Industrial monitoring of 50/60Hz electrical loads

Current Sense Transformers Procurement Notes

Verify the specific datasheet version when sourcing, as suffixes such as /SP3 or /SP110 indicate variations in cable length or connector types. Confirm that the standard ART-B22-D70 unit matches the required 1.5m wire lead specification if no custom cable assembly is needed. Ensure the application environment supports the free-hanging mechanical orientation and does not require panel mounting alternatives.

Current Sense Transformers Selection Notes

Select this component when a passive, non-invasive solution for low-frequency AC current measurement is required. The split core architecture eliminates the need to disconnect existing busbars or cables during installation. Consider the 180 µH inductance and 55 Ohm DCR values for signal conditioning circuit design. This part is suitable for applications where high bandwidth is not critical, focusing instead on accurate 50/60Hz representation.

Current Sense Transformers Part Context

The ART-B22-D70 belongs to the ART series of Rogowski coils and current transformers from LEM. This series is engineered for robust industrial performance, offering thin and flexible form factors. The component is distinct from LEM's Hall effect sensors, providing a purely inductive sensing method ideal for isolated AC current monitoring in power electronics and grid infrastructure.

Current Sense Transformers Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model. Variants such as ART-B22-D70/SP110 offer different cable configurations but retain the same core sensor functionality. Cross-referencing requires matching the split core geometry, inductance, and frequency response characteristics precisely.