LF 1005-S/SP51

Current Sensors Overview

The LF 1005-S/SP51 is a closed-loop Hall effect current transducer manufactured by LEM USA Inc. It features a single channel with a primary rated current of 1000 A and a secondary output signal of 200 mA. The device supports bidirectional measurement for AC and DC currents, operating within a frequency range of DC to 150 kHz. It utilizes a chassis mount module package and requires a supply voltage between ±15 V and 24 V. Key performance specifications include an accuracy of ±0.4% and a linearity of ±0.1%, with a response time of 1 µs.

Current Sensors Feature Summary

• Closed-loop Hall effect technology ensures high precision and fast dynamic response
• Galvanic isolation between the primary high-current circuit and the secondary low-voltage control circuit
• Bidirectional sensing capability allows accurate measurement of both positive and negative current flows

Current Sensors Applications

• Industrial motor drive systems requiring precise current feedback
• Power supply units and inverter circuits for AC/DC conversion monitoring
• Battery management systems in electric vehicles and energy storage applications

Current Sensors Procurement Notes

Verify that the specific suffix SP51 matches the required packaging configuration, as distributor listings may vary between bulk trays and standard modules. Confirm that the ±15 V to 24 V dual supply requirement aligns with the target system's power architecture. Ensure the chassis mounting interface is compatible with the installation environment before finalizing the order.

Current Sensors Selection Notes

Select this component when a 1000 A primary rating and 200 mA analog output are required for high-precision industrial applications. The closed-loop design is preferred over open-loop sensors where strict linearity and bandwidth constraints exist. Consider the physical dimensions and thermal dissipation capabilities inherent to the chassis mount module format during the mechanical integration phase.

Current Sensors Part Context

This part belongs to the LF series of current transducers from LEM, designed for robust industrial environments. The LF series typically offers high reliability and long-term stability for demanding power electronics applications. The LF 1005-S variant specifically targets high-current scenarios, providing a standardized solution for engineers designing heavy-duty electrical systems.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Engineers should consult official LEM replacement guides or contact the manufacturer directly for cross-reference information regarding obsolete or alternative components.