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Clamp-On Current Sensors

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Non-Intrusive Design

The CO-04-SF and CO-10-SF magnetic field concentrators are designed for non-intrusive and isolated measurements of electric currents. Thanks to the clamp-on design, the contactless current sensor can be safely installed without the need to interrupt or cut the cable. A full demonstrator assembly is also avaliable with our clamp on solution directly mounted on a PCB fully calibrated.



  • RoHS Compliant
  • Low Hysteresis
  • High Permeability
  • Hall-Sensor Measurement
  • High Linearity up to 200 A
  • Temperature Range: 10 to 120 °C
  • DC and AC Compatible
  • Snap-Fit Installation
  • Non-Intrusive Sensing
  • Small Size, Lightweight
  • Excellent Output Linearity
  • Planar PCB Installation


  • Power Monitoring and Management
  • Electric Vehicles and Charging
  • Battery Management Systems (BMS)
  • Inverter Control
  • Power Supply and UPS Systems
  • Energy Metering
  • IoT
  • Industrial
  • E-metering
  • Photovoltaic

Standard Product, Add-Ons or Custom Solutions

The CO-10-SF-A is an analog open-loop current sensor module designed for non-intrusive and isolated measurements of electric currents. Thanks to the clamp-on design, the contactless current sensor can be safely installed without the need to interrupt or cut the cable. Shapes, sizes and other details are customizable on request.

  • Application Information
  • Customization Process
  • Technical Resources

Clamp-on current sensor module

The module can be purchased as a magnetic field concentrator or mounted and equipped with a PCB including Melexis IMC-Hall® planar current sensor, a clamp-on shield and the necessary components to straightforwardly install and operate. Supplied with a DC voltage of 5V, the module provides a linear analog output voltage between 500 mV and 4500 mV as a function of the primary input current. The module offers an excellent linearity error, below 0.5% FS, and thanks to the integrated Melexis IMC-Hall® current sensor, the sensor module provides excellent offset as low as ±5 mV and sensitivity drift of 1% over a full temperature range.

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CTS AC Current Sensors - Tech-Brief thumbnail

Application Note / Tech Brief

CTS Clamp-On Current Sensors Tech Brief Thumbnail

Application Note / Tech Brief

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Brochures / Catalogs, Corporate Documents


Part Number Product Group Current Range (A) Output Size (mm)
CTS-CS-CXX-04 Clamp-On Magnetic Concentrator - - 4
CTS-CS-CXX-10 Clamp-On Magnetic Concentrator - - 10
CTS-CS-CXX-26 Clamp-On Magnetic Concentrator - - 26
CTS-CS-CAX-04-025 Clamp-On Current Sensor 0 - 25 Analog 4
CTS-CS-CAX-04-050 Clamp-On Current Sensor 0 - 50 Analog 4
CTS-CS-CAX-04-075 Clamp-On Current Sensor 0 - 75 Analog 4
CTS-CS-CAX-10-050 Clamp-On Current Sensor 0 - 50 Analog 10
CTS-CS-CAX-10-100 Clamp-On Current Sensor 0 - 100 Analog 10
CTS-CS-CAX-10-200 Clamp-On Current Sensor 0 - 200 Analog 10
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