LAC 300-S/SP7

Current Sensors Overview

The LAC 300-S/SP7 is a closed-loop Hall effect current sensor manufactured by LEM USA Inc. designed for the electronic measurement of DC, AC, and pulsed currents up to 1000 A. It features a single pass-through primary conductor configuration with galvanic isolation between the high-power primary circuit and the secondary signal output. The device operates as a bidirectional module, providing accurate current sensing in industrial applications requiring robust electrical isolation and wide bandwidth performance.

Current Sensors Feature Summary

• Closed-loop Hall effect technology ensures high precision and linearity
• Galvanic isolation separates primary power circuits from secondary signals
• Single pass-through design simplifies mechanical integration

Current Sensors Applications

• Industrial motor drives
• Power supply systems
• Inverter control circuits

Current Sensors Procurement Notes

Verify the specific suffix designation against official LEM documentation to confirm the exact rated current and pinout configuration. Ensure that the selected variant matches the required isolation voltage and operating temperature range for the target application environment. Cross-reference the part number with authorized distributors to guarantee authenticity and traceability.

Current Sensors Selection Notes

Select this component when measuring high-current loads up to 1000 A with strict isolation requirements. Consider the closed-loop architecture for superior dynamic response compared to open-loop alternatives. Evaluate the physical dimensions and mounting style to ensure compatibility with existing PCB layouts or panel cutouts within the system design constraints.

Current Sensors Part Context

This model belongs to LEM's LAC series of current sensors, which utilize Hall effect principles for non-invasive current monitoring. The series is engineered for demanding industrial environments where reliability and accuracy are critical. The specific SP7 suffix indicates a particular configuration within the product family, distinguishing it from other variants with different current ratings or interface options.

Current Sensors Replacement Considerations

Direct substitutes must match the 1000 A rating and closed-loop topology. Verify pin compatibility and isolation specifications before swapping. Consult LEM technical support for approved cross-references if the original part is discontinued.