Highly accurate Fluxgate current sensors

IT, ITN - High precision current sensors

The IT and ITN product families are engineered for ultra-high precision current measurement. They are optimized to deliver exceptional accuracy in measuring DC, AC, and pulsed currents while providing galvanic isolation between the primary and secondary conductors, thus contributing to the high performance of the overall system.

IT and ITN Ultrastab current sensors are designed to provide high-precision measurements within a range of 60 to 1000 ADC nominal current, all while maintaining galvanic isolation. These sensors are known for their outstanding linearity, high resolution, and rapid response times. They are intended for panel mounting in various applications where precision is essential.

Within this product family, the ITN 12-P Ultrastab stands out with unique characteristics compared to the other components. It maintains the key features shared by the rest of the family and can also be used for high-precision current measurement. However, ITN 12-P is specially designed for PCB mounting and features a metal housing for enhanced immunity against external interference.

Both IT and ITN current transducers operate based on the closed-loop Fluxgate technology, which ensures ultra-accuracy in any system where they are employed. This technology enables highly precise current measurements, making these sensors suitable for applications demanding the utmost precision and reliability.

IT, ITN – Features and benefits

IT, ITN high precision current sensors


  • Nominal AC&DC isolated current measurements: from 12.5 and 1000 ADC
  • Closed loop (compensated) current transducer using an extremely accurate zero flux detector
  • Electrostatic shield between primary and secondary circuit
  • 9-pin D-Sub male secondary connector
  • Status signal to indicate the transducer state
  • LED indicator confirms normal operation
  • Current output
  • Really quick response time 

Main characteristics

  • Very high accuracy
  • Excellent linearity
  • Extremely low temperature variation
  • Very low offset drift
  • Wide frequency bandwidth
  • High immunity to external fields
  • No insertion losses
  • Low noise on output signal
  • Low noise feedback to primary conductor
  • High resolution

Typical applications

IT and ITN high-precision sensors are indeed excellent choices in a wide range of applications where highly accurate current measurement is essential. They are particularly well-suited for industrial, laboratory, and medical environments where precision is mandatory. These applications can encompass:

  • Feedback element in high performance gradient amplifiers for MRI
  • Feedback element in high-precision, high-stability power supplies
  • Calibration unit
  • Energy measurement
  • Medical equipment

LEM IT, ITN – Download & Technical Characteristic

Product Document Primary nominal RMS voltage Supply Voltage range Op. Temperature


12.5 A 15 to 15 10 to 45 °C


60 A 15 to 15 10 to 50 °C
IT 200-S ULTRASTAB Datasheet 200 A 15 to 15 10 to 50 °C
IT 400-S ULTRASTAB Datasheet
400 A 15 to 15 10 to 50 °C
ITN 600-S ULTRASTAB Datasheet
600 A 15 to 15 10 to 50 °C
IT 700-S ULTRASTAB Datasheet
700 A 15 to 15 10 to 50 °C
IT 700-SB ULTRASTAB Datasheet 700 A 15 to 15 10 to 50 °C
ITN 900-S ULTRASTAB Datasheet
900 A 15 to 15 10 to 50 °C
IT 1000-S/SP1 ULTRASTAB Datasheet
1000 A 15 to 15 10 to 50 °C
ITN 1000-S ULTRASTAB Datasheet 1000 A 15 to 15 10 to 50 °C


Looking to receive samples or a quotation? Please click on the contact button below and provide us with the information you need on this product series. Our sales team will get back to you shortly.

Contact Us