LF 510-S/SPA2

Current Sensors Overview

The LF 510-S/SPA2 is a closed-loop Hall effect current transducer by LEM USA Inc., designed for high-precision electrical parameter measurement. It features a nominal primary current (Ipn) of 500 ARMS and supports bidirectional AC/DC measurements. The device utilizes a single pass-through module package with a turns ratio of 1/4000. Key electrical specifications include an accuracy of ±0.2% over the operating temperature range, linearity of ±0.15%, and a fast response time of less than 0.5 μs. It operates on a dual supply voltage ranging from +/- 15 V to +/- 24 V, ensuring reliable performance in demanding industrial environments.

Current Sensors Feature Summary

• Closed-loop Hall effect technology ensures high precision and stability
• Bidirectional measurement capability for AC and DC currents
• Compact single pass-through module design for versatile mounting

Current Sensors Applications

• Industrial motor drives and control systems
• Power supply units and inverters
• Battery management systems in electric vehicles
• Uninterruptible power supplies (UPS)

Current Sensors Procurement Notes

Verify the specific suffix SPA2 against official LEM documentation to confirm pinout and mounting configuration compatibility. Ensure the procurement source provides valid manufacturer certificates of authenticity. Cross-reference the part number with the latest datasheet revisions to avoid obsolete variants. Confirm that the supplied units match the active lifecycle status indicated in official product catalogs before finalizing orders.

Current Sensors Selection Notes

Select this component when precise isolation and rapid dynamic response are required for currents up to 500 ARMS. The closed-loop architecture minimizes thermal drift effects compared to open-loop alternatives. Evaluate the physical aperture size constraints against the primary conductor dimensions. Consider the dual supply requirement during power budgeting for the control circuitry integration phase.

Current Sensors Part Context

This model belongs to LEM's LF series of current transducers, which are engineered for robust industrial applications. The series emphasizes high accuracy and long-term stability using advanced magnetic sensing technologies. These sensors are widely deployed in power electronics where reliable galvanic isolation between primary and secondary circuits is critical for system safety and signal integrity.

Current Sensors Replacement Considerations

Official substitutes within the LF series may offer different nominal current ratings or sensitivity factors. Verify mechanical footprint compatibility and pin assignment equivalence before substitution. Consult LEM technical support for cross-referencing alternative part numbers that meet identical electrical performance criteria.