ACS712 30A range Current Sensor Module


The ACS712 30A Range Current Sensor Module / Hall Sensor device consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which the Hall IC converts into a proportional voltage.

Sensing and controlling current flow is a fundamental requirement in a wide variety of applications including, over-current protection circuits, battery chargers, switching mode power supplies, digital watt meters, programmable current sources, etc. This ACS721 current module is based on an ACS712 sensor, which can accurately detect AC or DC current. The maximum AC or DC that can be detected can reach 30A, and the present current signal can be read via the analog I / O port of Arduino. There is also the 5A and 20A version for your choice available on our portal.


  • Pin 5V power supply, onboard power indicator.
  • The module can be measured plus or minus 30 amps, corresponding to the analog output of 185 mV/A
  • There is no detection current through, the output voltage is VCC / 2.


Pin NumberPin NameDescription
1VccInput voltage is +5V for typical applications
2OutputOutputs Analog voltage proportional to current
3GroundConnected to the ground of the circuit
T1Wire InThe wire through current has to be measured and is connected here 
T2Wire Out


Module Dimensions31 x 13 x 14 mm (LxWxH)
Weight3 gm
Supply Voltage4.5V~5.5V DC
Measure Current Range-30A~ 30A
The current sensor chipsACS712ELC-30B.


  • Current measurement and monitoring in high-power industrial equipment and machinery.
  • Current sensing and protection in high-current motor control applications.
  • Monitoring and controlling power consumption in heavy-duty electrical appliances and tools.
  • Current measurement in large-scale power distribution systems for load balancing and optimization.


Download the Datasheet of ACS712 30A range Current Sensor Module from the link given below.