WCS1600 Hall Effect Current Sensor Module, 100A Overcurrent/Short Circuit Protection Detector for Arduino/Power Supply

Description

The WCS1600 Current Sensor Module is a Hall-effect-based detection board designed for non-invasive AC/DC current measurement up to ±100A DC (70A RMS AC), with integrated overcurrent and short-circuit protection signaling. Built around the Winson WCS1600 linear Hall sensor IC, the module features a 9.0mm through-hole conductor that allows the measured wire to pass directly through without breaking or modifying the existing circuit layout . The sensor outputs an analog voltage proportional to the current, centered at VCC/2 (typically 2.5V at 5V supply) when no current flows, with a sensitivity of approximately 20 mV/A . The module version adds a comparator circuit (typically LM393) with an adjustable potentiometer, enabling users to set an overcurrent threshold between 1.5A and 100A with roughly 3–5A resolution . When the measured current exceeds the set threshold, the module provides both an analog output for measurement and a digital TTL signal for direct microcontroller or relay control. This makes it suitable for individual makers building motor stall protection or short-circuit detection systems, as well as business purchasers seeking a cost-effective, isolated current monitoring solution for power supplies, battery systems, and industrial equipment diagnostics.

Features

• Non-Invasive Through-Hole Sensing: The 9.0mm conductor hole allows the measured wire to pass through without electrical connection, preserving circuit integrity and providing galvanic isolation up to 4000V .

• Wide Current Range: Measures DC current from 0 to ±100A and AC current up to 70A RMS, suitable for high-power motor and power supply applications .

• Adjustable Overcurrent Threshold: An onboard potentiometer allows the overcurrent trip point to be set between approximately 1.5A and 100A, with a resolution of roughly 3–5A .

• Dual Output Signals: Provides both an analog voltage output (proportional to current) for ADC measurement and a digital TTL-level output that changes state when overcurrent is detected .

• Visual Status Indicators: Includes a signal output indicator LED and a separate overcurrent indicator LED that illuminates when the set threshold is exceeded .

• Wide Supply Voltage Range: The WCS1600 IC operates from 3.0V to 12V, though module boards are typically configured for 5V DC operation .

Technical Specifications