Hall Current Sensor Module WCS1700/1800 35A/70A Overcurrent Protection

WCS1700/1800/1600 Hall Effect Current Sensor & Overcurrent Protection Module

The GUANDO WCS1700/1800/1600 Hall Current Sensor Module is a versatile, dual-function electronic component designed for accurate current monitoring and adjustable overcurrent protection. Whether you're building power management circuits, motor controllers, or battery monitoring systems, this compact module delivers reliable performance and easy integration.

Made in Mainland China.

Key Features

• Dual Operating Modes: Operates in both analog signal mode (op-amp buffered output, ideal for A/D conversion) and digital switch signal mode (configurable threshold output).
• Adjustable Current Threshold: Set your desired current limit (35A or 70A range depending on the WCS variant) — when the live current exceeds the preset threshold, the output switches from LOW to HIGH automatically.
• Short-Circuit & Overcurrent Protection: Instantly detects overcurrent events and triggers a switch signal output to safeguard your circuits and connected devices.
• Visual LED Indicator: Built-in LED indicator provides instant visual feedback when an overcurrent condition is detected — no additional test equipment needed.
• Hall Effect Technology: Non-contact, Hall-effect-based current sensing ensures minimal power loss and high measurement accuracy without interrupting the main circuit.
• Compatible Models: Supports WCS1700, WCS1800, and WCS1600 sensor configurations for flexible design choices.
• Plug-and-Play Convenience: Simple wiring and a pre-adjustable threshold make this module easy to integrate into both DIY projects and professional electronics designs.

Technical Specifications

• Sensor Type: Hall Effect Current Sensor
• Compatible ICs: WCS1600, WCS1700, WCS1800
• Current Range: 35A (standard) / 70A (extended)
• Output Mode: Analog (op-amp buffered) & Digital Switch Signal
• Switch Logic: Output LOW → HIGH when current exceeds preset limit
• Indicator: LED status indicator
• Condition: Brand New
• Brand: GUANDO
• Origin: Made in Mainland China

Who Is This Module For?

This current sensor module is perfect for electronics engineers, hobbyists, makers, and students who need a reliable, cost-effective way to monitor and protect circuits from overcurrent events. It's well-suited for:

• Battery management systems (BMS)
• Motor drive and speed controller circuits
• Solar charge controllers
• Power supply protection circuits
• Arduino, Raspberry Pi, and other microcontroller projects requiring current feedback

Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What is the difference between the WCS1600, WCS1700, and WCS1800 Hall current sensor variants?

A: The WCS1600, WCS1700, and WCS1800 are variants of the Hall effect current sensor IC with slightly different sensitivity and current range characteristics. This module is compatible with all three, allowing you to choose the IC best suited to your specific current measurement needs — from lower current ranges to higher 70A applications.

Q: How do I set the overcurrent threshold on this module?

A: The current limit threshold is adjustable via an onboard potentiometer or trim resistor. Simply set your desired trip point before deploying the module. When the measured current exceeds this preset value, the digital switch output transitions from LOW to HIGH and the LED indicator lights up, alerting your system to the overcurrent event.

Q: Can this module be used with microcontrollers like Arduino or ESP32?

A: Yes. The analog output is compatible with standard A/D converter inputs on microcontrollers such as Arduino, ESP32, STM32, and similar platforms. The digital switch output can also be connected directly to a digital input pin for threshold-based interrupt triggering — making it extremely versatile for embedded electronics projects.

Q: Does the Hall effect sensor require breaking the circuit to measure current?

A: No. Hall effect current sensors are non-contact by nature — the current-carrying conductor passes through or alongside the sensor, and the magnetic field generated by the current is measured without electrically interrupting the main circuit. This makes installation safer and more practical compared to traditional shunt resistor methods.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.