LES, LESR, LKSR, LPSR, LXS, LXSR

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


Product Document Primary nominal RMS voltage Secondary Nominal Signal Value Op. Temperature
LES 6-NP

Datasheet
3D

6 A 2.5 +/- 0.625 V -40 to 105°C
LES 15-NP

Datasheet
3D

15 A 2.5 +/- 0.625 V -40 to 105°C
LES 25-NP Datasheet
3D
25 A 2.5 +/- 0.625 V -40 to 105°C
LES 50-NP Datasheet
3D
50 A 2.5 +/- 0.625 V -40 to 105°C

 

LESR Series

 

Product Document Primary nominal RMS voltage Secondary Nominal Signal Value Op. Temperature
LESR 6-NP

Datasheet
3D

6 A 2.5 +/- 0.625 V -40 to 105 °C
LESR 6-NP/SP1

Datasheet
3D

6 A 2.5 +/- 0.625 V -40 to 105 °C
LESR 15-NP Datasheet
3D
15 A 2.5 +/- 0.625 V -40 to 105 °C
LESR 15-NP/SP1 Datasheet
3D
15 A 2.5 +/- 0.625 V -40 to 105 °C
LESR 25-NP Datasheet
3D
25 A 2.5 +/- 0.625 V -40 to 105 °C
LESR 25-NP/SP1 Datasheet
3D
25 A 2.5 +/- 0.625 V -40 to 105 °C
LESR 50-NP Datasheet
3D
50 A 2.5 +/- 0.625 V -40 to 85°C
LESR 50-NP/SP1 Datasheet
3D
50 A 2.5 +/- 0.625 V -40 to 85°C

 

LKSR Series

 

Product Document Primary nominal RMS voltage Secondary Nominal Signal Value Op. Temperature
LKSR 6-NP

Datasheet
3D

6 A 2.5 +/- 0.625 V -40 to 105 °C
LKSR 15-NP

Datasheet
3D

15 A 2.5 +/- 0.625 V -40 to 105 °C
LKSR 25-NP Datasheet 25 A 2.5 +/- 0.625 V -40 to 105 °C
LKSR 50-NP Datasheet 50 A 2.5 +/- 0.625 V -40 to 105 °C

 

LPSR Series

 

Product Document Primary nominal RMS voltage Secondary Nominal Signal Value Op. Temperature
LPSR 6-NP

Datasheet
3D

6 A 2.5 +/- 0.625 V -40 to 105 °C
LPSR 15-NP

Datasheet

15 A 2.5 +/- 0.625 V -40 to 105 °C
LPSR 25-NP Datasheet 25 A 2.5 +/- 0.625 V -40 to 105 °C
LPSR 50-NP Datasheet 50 A 2.5 +/- 0.625 V -40 to 105 °C

 

LXS Series

 

Product Document Primary nominal RMS voltage Secondary Nominal Signal Value Op. Temperature
LXS 6-NPS

Datasheet
3D

6 A 2.5 +/- 0.625 V -40 to 105 °C
LXS 15-NPS

Datasheet

15 A 2.5 +/- 0.625 V -40 to 105 °C
LXS 25-NPS Datasheet 25 A 2.5 +/- 0.625 V -40 to 105 °C

 

LXSR Series

 

Product Document Primary nominal RMS voltage Secondary Nominal Signal Value Op. Temperature
LXSR 6-NPS

Datasheet
3D

6 A 2.5 +/- 0.625 V -40 to 105 °C
LXSR 15-NPS

Datasheet

15 A 2.5 +/- 0.625 V -40 to 105 °C
LXSR 25-NPS Datasheet 25 A 2.5 +/- 0.625 V -40 to 105 °C

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

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