5A AC Current Transformer Sensor Module for Single Phase

The 5A AC Current Transformer Sensor Module is a precision device designed for non-intrusive measurement of AC current in single-phase circuits. Using the hall-effect or transformer-based current sensing principle, this module provides a safe, isolated analog or voltage output proportional to the AC current flowing through the conductor, making it ideal for power monitoring, energy metering, and industrial automation projects.

This compact module allows engineers and hobbyists to monitor current without direct electrical contact, providing safe integration with Arduino, ESP32, Raspberry Pi, or other microcontroller platforms. It is suitable for smart energy systems, load monitoring, and DIY electronics.

Key Features

• Measures AC current up to 5A in single-phase circuits

• Provides isolated output proportional to input current

• Non-intrusive and safe current measurement

• Compact, easy-to-mount module for embedded applications

• Compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers

• Low power consumption and fast response

Specifications

• Current Range: 0 – 5A AC

• Input Voltage: Works with standard AC mains (depending on setup)

• Output Type: Analog voltage or proportional signal

• Operating Voltage: Typically 5V DC for module power

• Accuracy: High precision with minimal offset

• Response Time: Fast for real-time monitoring

• Dimensions: Approx. 45 mm × 20 mm × 15 mm

Pin Description

• VCC: Module power supply (5V DC)

• GND: Ground

• OUT: Analog voltage output proportional to AC current

• IN / CT Terminals: Pass the AC conductor through the sensor core