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SCT-013-030 30A Non-Invasive Split Core Current Transformer (AC Sensor)

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When you need to monitor high-voltage AC mains but want to prioritize safety and ease of installation, the SCT-013-030 30A Split Core Current Transformer is the industry standard for makers and engineers. This non-invasive sensor simply clips around the live or neutral wire of your circuit, eliminating the need to splice dangerous, high-power cables.

Unlike the bare-output models, the -030 variant features a built-in burden resistor. This means it directly outputs a safe, proportional 0-1V AC signal for loads up to 30A. This clean voltage output makes it exceptionally easy to read using the built-in ADCs on your Arduino, ESP32, STM32 without requiring complex external circuitry. 

Perfect For:

  • IoT AC Energy Metering: The foundational sensor for designing custom, multi-tier AC energy meters for smart homes or industrial sub-panels.

  • Appliance Monitoring: Clip it onto individual breaker lines to track the real-time power consumption of specific high-draw appliances like AC units or water heaters.

  • Rapid Prototyping: Safely test and iterate your power-monitoring firmware without repeatedly exposing yourself to bare mains voltage.

Technical Specifications:

  • Model: SCT-013-030

  • Rated Input Current: 0 to 30A AC

  • Rated Output Voltage: 0 to 1V AC (Internal burden resistor included)

  • Core Design: Split-core (Non-invasive clip-on)

  • Opening Size: 13mm x 13mm (Fits standard household wiring)

  • Output Connection: Standard 3.5mm audio jack (tip, ring, sleeve)

  • Cable Length: Approximately 1 meter

  • Dielectric Strength: 6000V AC/1min

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