ATO-5-B420-D10/SP4

Current Sense Transformers Overview

The ATO-5-B420-D10/SP4 is a split-core AC current transformer from LEM's ATO series, designed for electronic measurement of AC primary currents. It features a 5 A current rating and operates within a frequency range of 50Hz to 60Hz. The device utilizes a non-invasive split core design with DIN rail mounting capabilities. Electrical specifications include a DC resistance of 600 Ohms and a loop power requirement of 20-30VDC. The unit provides a 4-20mA output signal with an average RMS measurement capability of 125 Amps. Physical dimensions are 33.50mm in length and 32.00mm in width.

Current Sense Transformers Feature Summary

• Split-core design enables non-invasive installation around conductors
• DIN rail mounting facilitates secure integration into industrial panels
• 4-20mA output signal supports standard industrial monitoring systems

Current Sense Transformers Applications

• Electronic measurement of AC primary currents
• Industrial current monitoring applications
• Power distribution system sensing

Current Sense Transformers Procurement Notes

Verify the specific suffix D10/SP4 against official LEM documentation to confirm cable length and connector type. Ensure the 20-30VDC loop power supply matches your system voltage. Confirm that the 5A primary rating aligns with your maximum expected load. Check for restricted availability status on distributor platforms before finalizing orders.

Current Sense Transformers Selection Notes

Select this model when non-invasive AC current measurement is required without breaking the circuit. The split-core architecture allows for retrofitting existing installations. Verify that the operating frequency range of 50Hz to 60Hz matches your power grid standards. Ensure the DIN rail form factor fits your enclosure constraints.

Current Sense Transformers Part Context

This component belongs to the LEM ATO series of industrial current transformers. The series focuses on robust, split-core solutions for AC current sensing. The ATO-5-B420-D10/SP4 variant specifically addresses applications requiring a 5A rating with integrated cabling options for direct connection to monitoring equipment.

Current Sense Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided source material.