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Current Sensor Module WCM7700


5 in stock (can be backordered)

AC / DC Sensing Current Module with Digital Data output



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Current Sensor Module WCM7700 Introduction

The WCM7700 consists of a current sensor, temperature sensor, a very high accuracy A/D converter and digital signal output of current.
The unique spring structure of WCM7700 can improve the tightness on both sides of the iron core, making measurement more stable and reducing the influence of structural opening and closing tolerances. Users can just use system’s own electric wire by pass it through this hole to measure passing current without breaking original system, user’s MCU can get the real data from DATA pin.
The WCM7700 provides temperature calibration of the internal current sensor and accurately measures the current of AC 50 / 60Hz and DC at temperature from -20˚C~70˚C. The WCM7700 also offers solutions for true RMS current measurement of various loads.


  • Continuous output and Modbus-RTU version.
  • Operating voltage DC5.0V.
  • 10.4 x 8 mm2 split through hole design
  • Sensing current range :
  • AC : 0~35A (50Hz, 60Hz)
    DC : 0~±50A
  • High accuracy :
  • AC : (0~10A) ± 0.3A
    (10~35A) ± 3%
  • DC : ±(0~10A) ± 0.3A
    ±(10~50A) ± 3%
  • High resolution :
  • AC / DC : 37mA
  • UART, Baud Rate : 9600 bps, Parity bit : None, Data bit : 8,Stop bit : 1
  • Temperature calibration
  • Isolation Voltage 4KV
SKU: Module WCM7700 Categories: ,

AC50C, DC50C, 50C, 50M

Model Maximum Current Operating Voltage Mode
WCM7700-AC50C 35A 5.0V Continuous
WCM7700-DC50C ±50A 5.0V Continuous
WCM7700-50C 35A ±50A 5.0V Continuous
WCM7700-50M 35A ±50A 5.0V Modbus-RTU



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