ATO-125-B1I-D16

Current Sense Transformers Overview

The ATO-125-B1I-D16 is a split-core current transformer manufactured by LEM USA Inc. designed for measuring AC primary currents ranging from 0 to 125 A. It features a 1000:1 turns ratio, producing a 1 mA/A output signal. The device operates within a frequency range of 50 Hz to 60 Hz and has a burden resistance of 24 Ohms. Classified as Class 1 accuracy, it supports applications up to 600 V CAT III PD2 with basic insulation.

Current Sense Transformers Feature Summary

• Split-core design allows installation without disconnecting the primary conductor
• High accuracy with low phase shift for precise measurement
• Suitable for basic insulation applications up to 600 V CAT III PD2

Current Sense Transformers Applications

• Measurement of AC primary currents in electrical systems
• Industrial monitoring where non-intrusive current sensing is required
• Energy management systems utilizing standard frequency ranges

Current Sense Transformers Procurement Notes

Verify that the specific part number matches the required split-core configuration and rated primary current of 125 A. Confirm compatibility with the system's voltage class and insulation requirements before procurement. Ensure the operating frequency aligns with the 50 Hz to 60 Hz specification to maintain accuracy standards.

Current Sense Transformers Selection Notes

Select this component when non-invasive current measurement is necessary for AC signals up to 125 A. The split-core architecture facilitates retrofitting into existing busbars or cables. Consider the 1 mA/A output interface for integration with compatible data acquisition or monitoring equipment requiring low-current inputs.

Current Sense Transformers Part Context

This model belongs to LEM's ATO series of current transformers, which are engineered for reliable performance in industrial environments. The series emphasizes ease of installation through split-core technology while maintaining high measurement fidelity across standard power frequencies.

Current Sense Transformers Replacement Considerations

Consult official LEM documentation for direct substitutes. Verify that any alternative maintains the 125 A rating, 1000:1 ratio, and split-core form factor to ensure functional equivalence.

Current Sense Transformers FAQ

What is the output signal type of the ATO-125-B1I-D16?

The device provides a current output with a ratio of 1 mA per Ampere of primary current.

Is this transformer suitable for DC current measurement?

No, it is designed specifically for AC primary currents within the 50 Hz to 60 Hz frequency range.