LES, LESR, LKSR, LPSR, LXS, LXSR Family

Closed Loop Hall effect current sensors performing at the level of Fluxgate technology without the added cost.

LES, LESR, LKSR, LPSR, LXS, LXSR - Current Sensors

The LES, LESR, LKSR, LPSR, LXS, and LXSR families consist of current sensors meticulously crafted for the electronic measurement of DC, AC, and pulse small currents, ranging from 1.5 to 50 Arms nominal (including models at 6A, 15A, 25A, and 50A), with galvanic isolation.

These product lines boast features such as low offset drift and primary integrated conductors, ensuring reliable performance across a wide temperature range from -40°C to +105°C.

In addition, the LESR, LKSR, LPSR, and LXSR components offer reference access on an additional pin. Furthermore, both LPSR and LKSR parts feature a distinct primary footprint with 4 pins, enhancing creepage and clearance distances to 9.9 mm for superior insulation. The LPSR model includes an exclusive feature with overcurrent detection output.

It is worth noting that this product family seamlessly integrates with CAS, CASR, and CKSR sensors, as well as LTS and LTSR Series, ensuring compatibility and flexibility in various applications.

Primarily designed for industrial use, the LES, LESR, LKSR, LPSR, LXS, and LXSR series leverage closed loop hall effect technology, delivering performance akin to Fluxgate technology but without the associated added cost.

LES, LESR, LKSR, LPSR, LXS, LXSR – Features and benefits

LES, LESR, LKSR, LPSR, LXS, LXSR current sensors

Main characteristics

  • Closed loop multi-range current sensor
  • Voltage output
  • Unipolar supply voltage
  • Compact design for PCB mounting
  • Cost attractive
  • PCB mounting in various footprints (3 or 4 primary pins with various layouts)
  • With aperture and/or integrated primary conductors
  • Compact design
  • High overall accuracy at +105°C up to 2%

Benefits

  • Very low offset drift
  • Very good dv/dt immunity
  • Fast response time <0.4 µs
  • CAS footprint compatible (LES)
  • CASR footprint compatible (LESR)
  • CKSR footprint compatible (LKSR)
  • LTS footprint compatible (LXS)
  • LTSR footprint compatible (LXSR)

All product families except LES offer an extended measuring range for unipolar measurement. Specifically, LESR, LKSR, LPSR, and LXSR feature a reference pin with two modes: Ref IN and Ref OUT.

Typical applications

LES, LESR, LKSR, LPSR, LXS, and LXSR products are specifically crafted for industrial applications, serving diverse purposes such as:

LEM LES, LESR, LKSR, LPSR, LXS, LXSR – Download & Technical Characteristic

LES Series


ProductDocumentPrimary nominal RMS voltageSecondary Nominal Signal ValueOp. Temperature
LES 6-NPDatasheet
3D		6 A2.5 +/- 0.625 V-40 to 105°C
LES 15-NPDatasheet
3D		15 A2.5 +/- 0.625 V-40 to 105°C
LES 25-NPDatasheet
3D		25 A2.5 +/- 0.625 V-40 to 105°C
LES 50-NPDatasheet
3D		50 A2.5 +/- 0.625 V-40 to 105°C

 

LESR Series

 

ProductDocumentPrimary nominal RMS voltageSecondary Nominal Signal ValueOp. Temperature
LESR 6-NPDatasheet
3D		6 A2.5 +/- 0.625 V-40 to 105 °C
LESR 6-NP/SP1Datasheet
3D		6 A2.5 +/- 0.625 V-40 to 105 °C
LESR 15-NPDatasheet
3D		15 A2.5 +/- 0.625 V-40 to 105 °C
LESR 15-NP/SP1Datasheet
3D		15 A2.5 +/- 0.625 V-40 to 105 °C
LESR 25-NPDatasheet
3D		25 A2.5 +/- 0.625 V-40 to 105 °C
LESR 25-NP/SP1Datasheet
3D		25 A2.5 +/- 0.625 V-40 to 105 °C
LESR 50-NPDatasheet
3D		50 A2.5 +/- 0.625 V-40 to 85°C
LESR 50-NP/SP1Datasheet
3D		50 A2.5 +/- 0.625 V-40 to 85°C

 

LKSR Series

 

ProductDocumentPrimary nominal RMS voltageSecondary Nominal Signal ValueOp. Temperature
LKSR 6-NPDatasheet
3D		6 A2.5 +/- 0.625 V-40 to 105 °C
LKSR 15-NPDatasheet
3D		15 A2.5 +/- 0.625 V-40 to 105 °C
LKSR 25-NPDatasheet25 A2.5 +/- 0.625 V-40 to 105 °C
LKSR 50-NPDatasheet50 A2.5 +/- 0.625 V-40 to 105 °C

 

LPSR Series

 

ProductDocumentPrimary nominal RMS voltageSecondary Nominal Signal ValueOp. Temperature
LPSR 6-NPDatasheet
3D		6 A2.5 +/- 0.625 V-40 to 105 °C
LPSR 15-NPDatasheet15 A2.5 +/- 0.625 V-40 to 105 °C
LPSR 25-NPDatasheet25 A2.5 +/- 0.625 V-40 to 105 °C
LPSR 50-NPDatasheet50 A2.5 +/- 0.625 V-40 to 105 °C

 

LXS Series

 

ProductDocumentPrimary nominal RMS voltageSecondary Nominal Signal ValueOp. Temperature
LXS 6-NPSDatasheet
3D		6 A2.5 +/- 0.625 V-40 to 105 °C
LXS 15-NPSDatasheet15 A2.5 +/- 0.625 V-40 to 105 °C
LXS 25-NPSDatasheet25 A2.5 +/- 0.625 V-40 to 105 °C

 

LXSR Series

 

ProductDocumentPrimary nominal RMS voltageSecondary Nominal Signal ValueOp. Temperature
LXSR 6-NPSDatasheet
3D		6 A2.5 +/- 0.625 V-40 to 105 °C
LXSR 15-NPSDatasheet15 A2.5 +/- 0.625 V-40 to 105 °C
LXSR 25-NPSDatasheet25 A2.5 +/- 0.625 V-40 to 105 °C

LES, LESR, LKSR, LPSR, LXS, LXSR Sensors – ASK FOR SAMPLES / QUOTATIONS

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