LTC 1000-S/SP29

Current Sensors Overview

The LTC 1000-S/SP29 is a closed-loop Hall effect current transducer manufactured by LEM USA Inc. It provides electrical isolation for measuring AC and DC currents with a nominal primary current of 1000 A RMS. The device features a single pass-through aperture design suitable for panel mounting. It operates on a dual power supply ranging from +/- 15 V to +/- 24 V, consuming a maximum supply current of 49 mA. The sensor delivers a proportional current output with a sensitivity of 0.2 mA/A. It ensures high precision within a temperature range of -40°C to +85°C, offering a linearity of ±0.15% and an accuracy of ±0.2%. The response time is less than 0.5 μs, supporting frequencies up to 200 kHz.

Current Sensors Feature Summary

• Closed-loop Hall effect technology for high-precision measurement
• Bidirectional current sensing capability
• Compact design with single pass-through aperture
• Fast response time under 0.5 microseconds

Current Sensors Applications

• Variable speed drives for motors
• Industrial power supplies
• AC/DC converters
• Uninterruptible power systems (UPS)
• Battery management in electric vehicles

Current Sensors Procurement Notes

Verify the specific suffix SP29 against official LEM documentation to confirm pinout and mounting configuration compatibility. Ensure the operating voltage range aligns with the system's dual supply requirements. Confirm that the 1000 A nominal current rating meets the peak load demands of the application without exceeding the sensor's limits.

Current Sensors Selection Notes

Select this model when precise isolation and fast dynamic response are required for high-current applications. The closed-loop architecture minimizes phase shift and improves linearity compared to open-loop sensors. Consider the physical aperture size and mounting constraints during integration. Verify thermal management capabilities given the operating temperature range and self-heating effects at full load.

Current Sensors Part Context

This component belongs to LEM's LF series of current transducers, which utilize ASIC-based closed-loop Hall effect technology. These sensors are designed for robust performance in demanding industrial environments. The series offers various nominal current ratings and packaging options to suit different installation needs while maintaining consistent accuracy and bandwidth specifications across the product line.

Current Sensors Replacement Considerations

The LT 1005-S/SP29 is listed as a related part number in distributor catalogs. However, verify technical equivalence carefully, as differences in nominal current or sensitivity may exist. Do not assume direct interchangeability without comparing datasheet parameters for both the LTC 1000-S/SP29 and potential substitutes.