SCT-013-000 Non-Invasive 100A AC Current Sensor | Pro Tronix

Product Description

A professional-grade, non-invasive split-core current transformer (CT) designed for safe, real-time AC current monitoring without requiring any physical cutting or splicing of high-voltage lines. Ideal for energy management, smart-grid monitoring, and load diagnostics in Arduino and ESP32 projects, the SCT-013-000 accurately steps down high-current loads up to 100A to a manageable 50mA secondary current output. Its split-core design features a spring-loaded snap-shut mechanism, allowing you to easily clip the sensor directly around a single live conductor for instant installation. This sensor is an essential diagnostic tool for calculating total power consumption, identifying energy-draining appliances, and building secure whole-house electrical monitoring systems.

Connection & Interface

The sensor is designed for simple, direct integration into your signal conditioning circuits:

• • Output Leads: Features two output wires (Internal secondary coil).

  • Interface Method: As this is a current transformer, it outputs an AC current signal proportional to the primary load.

  • Crucial Setup: To read this with a microcontroller, you must build a “burden resistor” circuit. Connect a burden resistor (e.g., $33\ \Omega$ to $62\ \Omega$) across the output leads to convert the current signal into a safe AC voltage, and use a voltage divider (DC bias) to center the signal at $VCC/2$ so your ADC can read the full AC waveform.