LF 2005-S

Current Sensors Overview

The LEM LF 2005-S is a closed-loop Hall effect current transducer designed for high-precision AC/DC measurement. It features a primary nominal RMS current (IPN) of 2000 A and a measuring range of ±3000 A at ±24 V supply. The device provides a current output with linearity of ±0.1%. It supports dual power supplies and operates within a temperature range of -40°C to +85°C. The aperture accommodates a 60.5 x 20.5 mm rectangular or 27 mm diameter primary conductor, ensuring versatile installation for industrial power applications requiring reliable isolation and accuracy.

Current Sensors Feature Summary

• Closed-loop Hall effect technology ensures high precision and stability
• Current output signal facilitates direct integration into control systems
• Dual power supply capability enhances operational flexibility
• Robust chassis mount design supports various panel installation methods

Current Sensors Applications

• Industrial motor drives and variable speed controls
• AC/DC converters and power supply units
• Uninterruptible power systems (UPS)
• Inverter and converter monitoring in renewable energy systems

Current Sensors Procurement Notes

Verify the specific ordering suffix against the official LEM datasheet to confirm pinout configuration and housing variant. Ensure the required supply voltage matches the dual supply specification. Confirm that the primary conductor dimensions fit within the specified aperture size before procurement. Request the latest calibration certificate if traceable accuracy is required for your application.

Current Sensors Selection Notes

Select this model when a primary current rating of 2000 A RMS is required with high linearity. Consider the physical aperture constraints for busbar or cable sizing. Evaluate the need for current output versus voltage output alternatives if signal conditioning complexity varies. Verify thermal management requirements given the operating temperature range and self-heating characteristics under full load conditions.

Current Sensors Part Context

The LF 2005-S belongs to LEM's LF series of closed-loop Hall effect sensors. This series is engineered for demanding industrial environments where accurate current monitoring is critical. The component utilizes fluxgate-level performance principles adapted for robust industrial use, distinguishing it from open-loop variants by offering superior offset drift characteristics and bandwidth.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching electrical parameters such as IPN, linearity, and aperture dimensions. Consult LEM technical support for direct equivalents or updated series replacements.