ACS712 30A Current Sensor Module – High-Range Hall Effect AC/DC Current Meter for Arduino & ESP32 in Pakistan

Overview

The ACS712 30A Module is the highest-capacity version of the popular Allegro Hall Effect current sensors. It is specifically designed for applications where current surges are common. Whether you are building a DIY power wall, monitoring a 12V/24V solar system, or tracking the energy consumption of a large appliance, this module provides a reliable analog output. Thanks to its magnetic sensing technology, the high-current path is physically isolated from your microcontroller pins, providing peace of mind during testing.

Key Features

• Maximum Capacity: Safely measures up to 30A of continuous AC or DC current.

• Safety First: Integrated 2.1kVRMS galvanic isolation prevents high-voltage spikes from reaching your logic controller.

• Linear Analog Output: Easy to read using the analogRead() function on any microcontroller.

• Low Resistance Path: Only 1.2 m$\Omega$ internal conductor resistance, meaning minimal heat generation even at high currents.

• Factory Calibrated: Pre-trimmed for accuracy at the factory level.

Technical Specifications

30A vs. 20A: When to choose this?

The 30A version is essential if your project involves Inductive Loads (like pumps or compressors) which have high startup “inrush” currents. A 20A sensor might saturate or fail during these peaks, but the 30A version provides the extra “headroom” needed for industrial-strength DIY projects.