{"product_id":"sct103-non-invasive-ac-current-clamp-sensor-30a-for-monitoring","title":"SCT103 Non-invasive AC Current Clamp Sensor 30A for Monitoring","description":"\u003ch1\u003eSCT103 Non-invasive AC Current Sensor Clamp 30A\u003c\/h1\u003e\n\n\u003cp\u003eThe SCT103 is a non-invasive clamp current sensor designed to measure AC current up to 30A without breaking the circuit. Simply clip it around a live wire to get an isolated voltage output proportional to the current. Ideal for energy monitoring, power logging, and overcurrent protection in embedded projects.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCurrent Range\u003c\/td\u003e\n\u003ctd\u003e0 to 30A AC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e0 to 1V (at 30A)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e50Hz to 1kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eClamp Opening\u003c\/td\u003e\n\u003ctd\u003e13mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e6000V AC for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e1.5 meters with 3.5mm jack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/smart-energy-monitor-kit-build-a-classroom-power-logger-with-arduino\"\u003eHome energy monitor using Arduino or ESP32\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eSolar inverter output tracking\u003c\/li\u003e\n  \u003cli\u003eServer room PDU current logger\u003c\/li\u003e\n  \u003cli\u003eOvercurrent alarm system for appliances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eWorks with any microcontroller with an analog-to-digital converter (ADC), such as Arduino Uno, Nano, ESP8266, ESP32, Raspberry Pi (with ADC), STM32, and PIC. The output is 0–1V AC, offset to half the reference voltage via a simple voltage divider for most ADCs. No external burden resistor needed for standard operation.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect the sensor's output pin to an analog input. Add a 10kΩ resistor from the signal to ground and a 0.1µF capacitor in parallel for noise reduction. For 3.3V boards, use a voltage divider to scale the output accordingly. Always ensure the measured wire is disconnected from power when clamping for safety.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, the SCT103 works with any Arduino that has an analog pin. Connect VCC to 5V, GND to GND, and output to A0. Use the analogRead() function to measure voltage and convert to current using a calibration factor.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I calibrate the sensor?\u003c\/summary\u003e\u003cp\u003eCalibration involves applying a known load and adjusting the conversion factor in software. Multiply the ADC reading by the reference voltage, then by a scaling constant (approximately 30 for 30A range) to get amperes. Fine-tune with a multimeter for accuracy.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan it measure DC current?\u003c\/summary\u003e\u003cp\u003eNo, the SCT103 is a current transformer and only works with alternating current (AC). For DC measurements, consider a hall-effect sensor like ACS712.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444998463853,"sku":"CDN-0613","price":360.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_a7608bf0-f30c-4ca2-9aac-06095b6d1bc8.jpg?v=1781512726","url":"https:\/\/compoden.com\/products\/sct103-non-invasive-ac-current-clamp-sensor-30a-for-monitoring","provider":"Compoden","version":"1.0","type":"link"}