{"product_id":"dc-12v-ac-current-detection-sensor-module-5a-overcurrent-relay-switch-arduino","title":"DC 12V AC Current Detection Sensor Module – 5A Overcurrent Switch","description":"\u003ch2\u003eDC 12V AC Current Detection Sensor Module with 5A Overcurrent Protection\u003c\/h2\u003e\n\u003cp\u003eUpgrade your electronics projects with this compact and reliable \u003cstrong\u003eDC 12V AC Current Detection Sensor Module\u003c\/strong\u003e. Designed for makers, engineers, and hobbyists, this board monitors AC current in real time and automatically triggers a relay switch when current exceeds the 5A threshold — helping protect your circuits and connected devices from overcurrent conditions.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're building custom automation systems, integrating smart protection into DIY electronics, or developing Arduino-based projects, this sensor module delivers precise current switching performance in a small, easy-to-wire form factor.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e DC 12V supply for stable, reliable operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Detection:\u003c\/strong\u003e Detects AC current with a 5A overcurrent threshold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Relay Switch:\u003c\/strong\u003e Automatically switches output upon detecting overcurrent — ideal for automated circuit protection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitching Transducer Output:\u003c\/strong\u003e Clean digital output signal for straightforward integration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArduino Compatible:\u003c\/strong\u003e Plug-and-play compatibility with Arduino and other popular microcontroller platforms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Board Design:\u003c\/strong\u003e Space-saving PCB layout fits easily into enclosures and project boxes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Built with safe mixed materials — no hazardous substances declared\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustomizable:\u003c\/strong\u003e Supports customized configurations to suit specific project requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino and microcontroller-based automation projects\u003c\/li\u003e\n  \u003cli\u003eDIY home automation and smart switching systems\u003c\/li\u003e\n  \u003cli\u003eOvercurrent monitoring and circuit protection boards\u003c\/li\u003e\n  \u003cli\u003eIndustrial and workshop electronics prototyping\u003c\/li\u003e\n  \u003cli\u003eEducational electronics and STEM learning kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetected Current Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOvercurrent Threshold\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSwitching Transducer (Relay)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eArduino, microcontrollers\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMixed (PCB \u0026amp; components)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What supply voltage does this AC current detection sensor module require?\u003c\/h4\u003e\n\u003cp\u003eA: This sensor module operates on a DC 12V supply voltage. Ensure your power source provides a stable 12V DC output for reliable detection and relay switching performance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this current detection sensor module compatible with Arduino?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, this module is fully compatible with Arduino and most popular microcontroller platforms. It provides a clean switching transducer output that can be read directly by digital input pins on your Arduino board, making it straightforward to integrate into your projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What happens when the current exceeds 5A?\u003c\/h4\u003e\n\u003cp\u003eA: When the detected AC current reaches or exceeds the 5A threshold, the onboard relay automatically switches state, triggering your connected circuit or load. This makes it an effective automatic overcurrent protection switch for safeguarding electronics and appliances in your DIY systems.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What supply voltage does this AC current detection sensor module require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This sensor module operates on a DC 12V supply voltage. Ensure your power source provides a stable 12V DC output for reliable detection and relay switching performance.\"}}, {\"@type\": \"Question\", \"name\": \"Is this current detection sensor module compatible with Arduino?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, this module is fully compatible with Arduino and most popular microcontroller platforms. 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