LEM LES Current Transducers

LEM LES Current Transducers are designed for the precise electronic measurement of DC, AC, and small pulse currents, while maintaining galvanic isolation. These transducers are engineered for high accuracy, stability, reliability, and cost efficiency. The LES current transducers seamless integration with CAS sensors, providing enhanced compatibility and flexibility across various industrial applications. These transducers feature low offset drift and integrated primary conductors, ensuring optimal performance. Typical applications include AC variable speed and servo motor drives, static converters for DC motor drives, battery-supplied devices, and Uninterruptible Power Supplies (UPS).

Features

  • Closed-loop multi-range current sensor
  • Voltage output
  • Unipolar supply voltage
  • Compact design for PCB mounting in various footprints (3 or 4 primary pins with various layouts)
  • Compact design
  • Up to 2% high overall accuracy at 105°C
  • Very low offset drift
  • Very good dv/dt immunity
  • <0.4µs fast response time
  • CAS footprint compatible

Applications

  • AC variable speed and servo motor drives
  • Static converters for DC motor drives
  • Battery-supplied devices
  • Uninterruptible Power Supplies (UPS)
  • Switched Mode Power Supplies (SMPS)
  • Power supplies for welding
  • Solar inverters

Dimension Diagram

Mechanical Drawing - LEM LES Current Transducers
Publicado: 2026-03-30 | Actualizado: 2026-04-02