The SCT-013 100A is an AC current transformer designed for measuring alternating current up to 100A. Its split-core design allows for easy installation around existing conductors, making it particularly suitable for DIY projects. It is compatible with microcontrollers such as Arduino and Raspberry Pi, making it ideal for energy monitoring, over-current protection, and various electrical measurement applications.

SCT-013-000 (100A / 50mA) — Current Output Variant:

This is a standard current transformer. It has a turns ratio of 1:2000. When 100A flows through the primary wire, it induces a tiny 50mA AC current in the secondary wire.

Burden Resistor: It does not have an internal burden resistor. You must add your own external burden resistor across the output terminals to convert this current into a readable voltage for your microcontroller.

Flexibility: Highly flexible. By choosing the value of your external burden resistor, you can customize the output voltage range to perfectly match your microcontroller's ADC (e.g., 5V for an Arduino Uno or 3.3V for an ESP32).

Safety Risk: Never leave the clips open while clamped around an active live wire. If a CT with a current output is clamped without a burden resistor connected, the secondary voltage can spike to dangerously high levels, potentially destroying the sensor or causing an electrical arc.

Specifications:

·       Model: SCT-013-000

·       Core Material: Ferrite

·       Input Current: 100a AC

·       Leading Wire in Length: 1.5m

·       Opening Size: 0.51 * 0.51inch / 13 x 13mm

·       Turns Ratio: 1: 1800

·       Resistance Grade: Grade B

·       Max Sampling Resistance: 10 Ω

·       Linearity: ±3%

·       Accuracy: ±1%

·       Work Frequency: 50-1 KHz

·       Work Temperature: -25˚C ~ 70˚C

·       Reference project: Open Energy Monitor

·       Dielectric Strength: 6000V AC/1min

Package Contents:

1 x SCT-013-000 (100A / 50mA) Non-invasive AC Current Sensor