LT 4000-S/SP43

Current Sensors Overview

The LT 4000-S/SP43 is a closed-loop compensated current transducer utilizing the Hall effect for electronic measurement of DC, AC, and pulsed currents. It provides galvanic isolation between high-power primary circuits and secondary electronic circuits. The device features an insulated plastic case recognized according to UL 94-V0 standards. It is designed for applications requiring excellent accuracy, very good linearity, low temperature drift, optimized response time, wide frequency bandwidth, no insertion losses, and high immunity to external interference.

Current Sensors Feature Summary

• Closed-loop compensated current transducer using the Hall effect
• Galvanic isolation between primary and secondary circuits
• Insulated plastic case recognized according to UL 94-V0

Current Sensors Applications

• AC variable speed drives and servo motor drives
• Static converters for DC motor drives
• Uninterruptible Power Supplies (UPS)
• Switched Mode Power Supplies (SMPS)

Current Sensors Procurement Notes

Verify the specific suffix SP43 against official LEM documentation to confirm pinout and mounting configuration compatibility. Ensure the procurement channel sources genuine components with valid traceability records. Cross-reference the manufacturer part number with the latest datasheet revisions to confirm active lifecycle status and any potential design changes or obsolescence notices prior to finalizing orders.

Current Sensors Selection Notes

Select this component when measuring high-current signals with strict requirements for linearity and frequency bandwidth. The closed-loop Hall effect technology ensures minimal insertion loss and high immunity to external interference. Consider the UL 94-V0 rated insulated plastic case for safety compliance in industrial environments requiring galvanic isolation between high-power and control circuits.

Current Sensors Part Context

The LT 4000-S series represents LEM's range of high-performance current transducers designed for demanding industrial applications. These devices are engineered to provide precise measurement of complex current waveforms, including DC, AC, and pulsed currents. The LT 4000-S/SP43 variant specifically integrates these capabilities into a robust module suitable for integration into power electronics systems requiring reliable galvanic isolation.

Current Sensors Replacement Considerations

LT1005-S

Current Sensors FAQ

What type of current can the LT 4000-S/SP43 measure?

It measures DC, AC, and pulsed currents.

Does the LT 4000-S/SP43 provide electrical isolation?

Yes, it provides galvanic isolation between the primary circuit and the secondary circuit.