LF 510-S/SP27

Current Sensors Overview

The LF 510-S/SP27 is a closed-loop Hall effect current transducer manufactured by LEM USA Inc. It features a single pass-through module design for panel mounting, supporting bidirectional measurement of AC and DC currents up to 500A. The device operates with a supply voltage range of ±14.25V to ±25.2V and delivers an analog current output. Key electrical specifications include a frequency response of 200kHz, a response time of 0.5µs, and a linearity of ±0.1%. Accuracy is rated at 0.5%, with a maximum supply current consumption of 48mA. The unit functions within a temperature range of -40°C to 85°C.

Current Sensors Feature Summary

• Closed-loop Hall effect technology ensures high accuracy and galvanic isolation between primary and secondary circuits.
• Bidirectional sensing capability allows for precise measurement of both positive and negative current flows.
• Single pass-through module construction facilitates straightforward integration into panel-mounted applications.

Current Sensors Applications

• Industrial power electronics monitoring
• Inverter and converter current control
• Battery management systems in electric vehicles

Current Sensors Procurement Notes

Verify the specific suffix SP27 against the official LEM datasheet to confirm mechanical dimensions and terminal configuration. Ensure the selected variant matches the required panel cutout and mounting hardware specifications. Confirm that the supply voltage requirements align with the system's available power rails before finalizing procurement orders.

Current Sensors Selection Notes

Select this component when high bandwidth and precision are required for bidirectional current sensing. The 200kHz frequency response suits fast-switching applications. Consider the ±14.25V to ±25.2V supply requirement during system design. Verify thermal management needs given the operating temperature range and self-heating characteristics under load conditions.

Current Sensors Part Context

This part belongs to the LF series of current transducers from LEM, designed for industrial and automotive applications. The LF 510-S variant specifically targets high-performance scenarios requiring accurate AC/DC measurement. The SP27 suffix denotes specific packaging or mechanical variations within the product line.

Current Sensors Replacement Considerations

Cross-reference with LF 505-S for similar 500A capacity but note differences in frequency response and accuracy. Verify compatibility with LF 510-S variants having different suffixes regarding mounting style and output type before substitution.