HAH3DR 1100-S0E

Current Sensors Overview

The HAH3DR 1100-S0E is an open-loop Hall effect current sensor designed for high-power applications. It features a nominal primary current (IPN) of 1100 A and a maximum measurable current of +/-1500 A. The device provides a proportional isolated output with a zero-current offset of 2.5 V, ranging from 0.5 V at -IPN to 4.5 V at +IPN. It operates on a shared power supply with analog-to-digital converters to prevent reference mismatch errors. The sensor utilizes a proprietary ASIC-controlled magnetic core assembly to ensure low offset, high linearity, and global accuracy within specified temperature and lifespan ranges.

Current Sensors Feature Summary

• Open-loop Hall effect technology enabling measurement of bidirectional AC and DC currents
• High integration design suitable for installation on thick busbars with cable connectors
• Proportional current-isolated output compatible with standard ADC power supplies
• Proprietary ASIC-controlled magnetic core assembly ensuring low offset and high linearity

Current Sensors Applications

• xEV automotive traction inverters
• High-power motor control systems
• IGBT and SiC inverter power modules

Current Sensors Procurement Notes

Verify the specific suffix designation against official LEM documentation to confirm mechanical interface compatibility. The S0E variant is engineered for mounting on thick busbars with cable connectors, distinct from module-integrated versions. Ensure the selected part number matches the required nominal current rating and voltage isolation specifications for the target application environment.

Current Sensors Selection Notes

Select this component for applications requiring high bandwidth and fast response times in high dv/dt environments. The S0E configuration is appropriate when busbar mounting with cable connections is preferred over direct module integration. Consider the +/-1500 A peak capability when sizing for transient loads. Validate that the proportional output voltage range aligns with the input requirements of the downstream signal processing circuitry.

Current Sensors Part Context

The HAH3DR series represents LEM's compact current sensor solution for three-phase power modules. This family includes variants designed for either direct inverter module integration or busbar mounting. The HAH3DR 1100-S0E specifically addresses the need for high-current sensing in electric vehicle traction systems, offering robust performance under demanding thermal and electrical conditions typical of modern power electronics.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence by comparing nominal current ratings, output characteristics, and mechanical mounting interfaces with alternative sensors before substitution.