{"product_id":"sct-013-split-core-current-transformer-non-invasive-ac-sensor","title":"SCT-013 Split Core Current Transformer – Non-Invasive AC Sensor","description":"\n\u003ch2\u003eGUANDO SCT-013 Split Core Current Transformer — Non-Invasive AC Current Sensor\u003c\/h2\u003e\n\u003cp\u003eAccurately measure AC current without cutting or interrupting your existing wiring. The GUANDO SCT-013 Split Core Current Transformer is a compact, non-invasive sensor designed for energy monitoring projects, home automation systems, and power measurement applications. Simply clamp it around a single conductor and start reading current in real time — no rewiring required.\u003c\/p\u003e\n\n\u003cp\u003eCompatible with popular open-source energy monitoring platforms including \u003cstrong\u003eOpenEnergyMonitor\u003c\/strong\u003e and similar DIY power-monitoring projects, this sensor is an ideal building block for smart home energy dashboards, IoT power loggers, and maker electronics builds.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-Invasive Design:\u003c\/strong\u003e Split-core clamp opens and closes around a conductor — no circuit interruption needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Current Ranges Available:\u003c\/strong\u003e 5A, 10A, 20A, 30A, 50A, 60A, and 100A variants to suit a wide range of applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Options:\u003c\/strong\u003e SCT-013-000 (0–100A, voltage output), SCT-013-030 (0–30A), SCT-013-050 (0–50A).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFerrite Core:\u003c\/strong\u003e High-permeability ferrite core for accurate and stable current measurement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard 3.5mm Output Plug:\u003c\/strong\u003e Plug directly into a microcontroller ADC input (e.g., Arduino, Raspberry Pi) with no additional adapters.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Opening Size:\u003c\/strong\u003e 13 × 13 mm conductor aperture accommodates most standard single-core cables.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Dielectric Strength:\u003c\/strong\u003e Rated at 6,000V AC \/ 1 min for reliable electrical isolation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlame-Retardant Housing:\u003c\/strong\u003e UL94-V0 rated plastic enclosure for safety in enclosed electrical environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong Cable Lead:\u003c\/strong\u003e 1.5 m cable for flexible positioning away from the measurement point.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Functions reliably from −25°C to +70°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCore Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFerrite\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlame-retardant Plastic (UL94-V0)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Current Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0A – 30A \/ 0A – 50A \/ 0A – 100A (model dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOpening Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13 × 13 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5mm audio jack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDielectric Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6,000V AC \/ 1 min\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−25°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlammability Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUL94-V0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;500 (at 20°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatible Projects \u0026amp; Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHome and commercial energy monitoring systems\u003c\/li\u003e\n  \u003cli\u003eDIY smart meter and power logger builds\u003c\/li\u003e\n  \u003cli\u003eOpenEnergyMonitor (emonPi, emonTx) platforms\u003c\/li\u003e\n  \u003cli\u003eArduino \/ Raspberry Pi current sensing circuits\u003c\/li\u003e\n  \u003cli\u003eIndustrial equipment monitoring\u003c\/li\u003e\n  \u003cli\u003eSolar panel and renewable energy output tracking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between SCT-013-000, SCT-013-030, and SCT-013-050?\u003c\/h4\u003e\n\u003cp\u003eA: The SCT-013-000 is a 0–100A model with a voltage output (0–1V), while the SCT-013-030 measures 0–30A and the SCT-013-050 measures 0–50A — both with a built-in burden resistor for direct voltage output via the 3.5mm plug. Choose the model that best matches the maximum current draw of the circuit you want to monitor.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need to cut or splice my wiring to use this current transformer?\u003c\/h4\u003e\n\u003cp\u003eA: No — that's the key advantage of a split-core design. Simply open the clamp, place it around a single conductor (live OR neutral, not both), and close it. The transformer inductively senses current flow with zero contact with the live conductor, making installation safe and straightforward.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What microcontroller or platform can I use with the SCT-013 sensor?\u003c\/h4\u003e\n\u003cp\u003eA: The SCT-013 series works with any platform that has an analog input pin, including Arduino, ESP8266, ESP32, and Raspberry Pi (with an ADC). It is officially supported by the OpenEnergyMonitor project and is compatible with the emonLib library for easy integration into energy monitoring sketches.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this sensor safe to use in an electrical panel or breaker box?\u003c\/h4\u003e\n\u003cp\u003eA: The SCT-013 features a dielectric strength rating of 6,000V AC (1 min) and a UL94-V0 flame-retardant housing, providing robust electrical isolation between the measured conductor and the output circuit. Always follow local electrical codes and safety guidelines when working inside electrical panels.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo 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.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between SCT-013-000, SCT-013-030, and SCT-013-050?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The SCT-013-000 is a 0–100A model with a voltage output (0–1V), while the SCT-013-030 measures 0–30A and the SCT-013-050 measures 0–50A — both with a built-in burden resistor for direct voltage output via the 3.5mm plug. 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