AP 400 B10

Current Sensors Overview

The LEM AP 400 B10 is a unidirectional, split-core current transducer designed for the electronic measurement of AC and DC currents. It features a selectable primary current range of 200 A, 300 A, or 400 A via an internal switch. The device provides galvanic isolation between the primary circuit and secondary electronics. Output signals are configurable to 0-5 V or 0-10 V DC, allowing flexible integration into monitoring systems.

Current Sensors Feature Summary

• Split-core design enables installation without disconnecting primary conductors
• Galvanic isolation ensures safety between high voltage circuits and control electronics
• Selectable primary current rating allows adaptation to specific load requirements
• Configurable analog output supports standard industrial control interfaces

Current Sensors Applications

• Industrial motor drive monitoring
• Power supply current regulation
• Battery management systems
• Uninterruptible power supply (UPS) input/output monitoring

Current Sensors Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact output configuration and calibration settings. Ensure the selected unit matches the required primary current range setting. Cross-reference the datasheet revision date to guarantee compatibility with existing system designs and interface requirements.

Current Sensors Selection Notes

Select this model when split-core installation is required for AC/DC current monitoring. Confirm that the application requires a unidirectional measurement capability. Verify that the available space accommodates the split-core aperture size. Ensure the control system accepts the selected analog voltage output range for proper signal conditioning.

Current Sensors Part Context

This component belongs to the AP series of current transducers from LEM USA Inc. The series focuses on split-core solutions for non-intrusive current measurement. These devices are engineered for robust performance in industrial environments where electrical isolation and accurate waveform tracking are critical for system protection and efficiency.

Current Sensors Replacement Considerations

Consult official LEM substitution guides for direct replacements. Verify mechanical dimensions and pinout compatibility before swapping. Ensure the alternative part supports the same selectable current ranges and output types to maintain system functionality without redesign.