Open-Loop Hall-Effect Current Sensor

Isolated Hall-effect sensors for accurate measurement of DC, AC and pulsed currents, offering fast response, flexible current ranges and reliable integration into industrial power and control systems.

The STF Open-Loop Hall-Effect Current Sensor Series provides isolated measurement of DC, AC and pulsed currents across a wide current range. Based on the Hall-effect principle, the sensors convert the primary current into a proportional voltage output while maintaining galvanic isolation between the measured conductor and the control circuit.​

Featuring fast response, stable linearity, low power consumption and flexible current-range options, the series can be easily integrated into power supplies, inverters, motor drives, welding equipment, battery systems, industrial automation and renewable-energy equipment. Electrical parameters, aperture size, mounting method and output configuration can be selected according to specific application requirements.

Current range

100-800 A

Measurement

DC, AC and pulsed current

Output

±4 V

Frequency

DC–20 kHz

Accuracy

±1.0%

Response time

<10 μs

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