SCT-013-030 Non-Invasive AC Current Sensor Clamp Sensor (30A)

The SCT-013-030 is a professional-grade non-invasive AC current transformer designed for accurate, safe, and easy current measurement in residential, commercial, and industrial applications. With its split-core clamp-on design, it allows current monitoring without cutting or modifying existing wiring—making it highly suitable for IoT, home automation, smart energy management, and power analytics systems.

This sensor outputs a stable, linear 1V RMS signal proportional to the measured AC current (up to 30A), providing excellent compatibility with Arduino, ESP32, NodeMcu (ESP8266), Raspberry Pi (with external ADC), industrial microcontrollers, and power-analysis software such as OpenEnergyMonitor. Its high sensitivity and low noise design make it a trusted component in smart home dashboards, solar monitoring, IoT meters, and predictive maintenance systems.

⭐ How It Works – Complete Technical Insight

The SCT-013-030 uses magnetic induction to sense AC current flowing through a conductor. When clamped around a live wire, the changing magnetic field generates a small secondary voltage. This sensor includes a built-in burden resistor, ensuring a predictable, filtered 1V output at 30A, simplifying analog-to-digital conversion.

This analog signal can be used to calculate:

• RMS Current

• Real Power (Watts)

• Apparent Power (VA)

• Power Factor

• Energy Consumption (kWh)

Libraries such as EmonLib make integration fast and professional.

⭐ Key Features

• Non-invasive split-core AC current sensor

• Clamp-on design (no circuit breaking required)

• Accurate 1V analog output at 30A

• Safe electrical isolation

• 13mm inner diameter suitable for most cable sizes

• Ideal for smart meters and power monitoring

• Compatible with Arduino, ESP32, Raspberry Pi (ADC)

• High reliability YHDC engineering

⭐ Technical Specifications

⭐ Applications & Use Cases

The SCT-013-030 is widely used in high-performance and real-time monitoring systems, including:

🏠 Smart Home & IoT Energy Monitoring

• Real-time appliance usage tracking

• Power dashboards (Home Assistant, Node-RED, Grafana)

• Smart plugs & energy meters

⚡ Industrial & Commercial Monitoring

• Machine current tracking

• Overload prevention

• Predictive maintenance

☀️ Renewable Energy Systems

• Solar inverter AC output monitoring

• Load balancing

• Smart grid metering

🔬 Education & Research

• Electrical labs

• Embedded energy measurement projects

• Academic IoT research

⭐ Installation Guide (Practical & Safe)

1. Identify the live (L) or neutral (N) wire—not the entire cable.

2. Press the latch to open the clamp.

3. Insert the wire into the 13mm aperture.

4. Snap shut until it clicks.

5. Connect the 3.5mm jack to your analog input circuit.

6. Use RMS calculations in your microcontroller code.

✔ Works only with AC current (does not support DC).

⭐ Precautions

• Do NOT clamp around both live + neutral wires together.

• Only measure AC current, not DC.

• Avoid humidity or heat exposure.

• Check calibration for precise readings.

• Ensure ADC reference voltage matches sensor output limits.

⭐ Internal Links (SEO-Boosting)

Explore related categories:

• Electronics Components: https://electroway.org/product-category/electronics-components/

• Arduino & Accessories: https://electroway.org/product-category/arduino-and-accessories/

• Tools & Accessories: https://electroway.org/product-category/tools-and-accessories/

⭐ YouTube Tutorial (Beginner Friendly)

Watch Video:https://www.youtube.com/shorts/jq6WNmuCO-k

4. Product Summary

The SCT-013-030 Non-invasive AC Current Sensor delivers safe, accurate, and effortless AC current measurement for IoT, automation, and energy-monitoring systems. Its clamp design, 30A capacity, and 1V output make it ideal for smart meters, Arduino energy projects, industrial diagnostics, and power analytics.