Current sensor SCT013-000 AC 0-100A 0-50mV clamp-type

The clamp-type current sensor SCT013-000 measures alternating current in the range 0–100 A and provides a proportional 0–50 mV output. Designed for non-invasive measurement, the sensor clamps around a single conductor to pick up AC load current without disconnecting wiring. Its low-voltage output makes it suitable for connection to data loggers, microcontrollers with ADC inputs (via appropriate signal conditioning), energy monitoring systems and hobby electronics projects where safe isolation from the mains is required.

Advantages

The SCT013-000 offers a compact clamp design that enables quick installation on live conductors without interrupting the circuit. Its wide current range up to 100 A covers typical household and small industrial loads. The low-level 0–50 mV output minimizes direct electrical connection to mains potentials and reduces the need for heavy-duty isolation in measurement interfaces. The sensor delivers repeatable AC current readings and is compatible with common measurement setups after adding an appropriate burden resistor or amplifier.

Suitable for

• Non-invasive mains current monitoring in residential and small commercial installations
• Energy meter prototyping and retrofit monitoring
• Integration with microcontroller-based data acquisition systems (with proper signal conditioning)
• Power consumption logging and load profiling for appliances
• Educational and DIY electronics projects requiring isolated current measurement

Key specifications

• Measurement type: AC current only
• Current range: 0–100 A (AC)
• Output signal: 0–50 mV proportional to measured current
• Form factor: clamp-on (split core) for single-conductor installation
• Electrical isolation: galvanic isolation between conductor and output
• Typical application: mains and load current sensing for monitoring and measurement

How to use

Position the SCT013-000 around a single live or neutral conductor and close the clamp until it latches. Do not enclose multiple conductors or the entire cable bundle, as that will cancel the measured flux. Connect the sensor output to the measuring device using a suitable burden resistor or an amplifier circuit to convert the 0–50 mV signal into the input range of your data logger or ADC. Ensure correct polarity where applicable and observe safety practices when working near mains wiring. Calibrate or scale measurements in software according to the chosen burden resistor and the sensor’s specified transfer characteristic.

Usage recommendations

Use a properly rated burden resistor and, if necessary, a dedicated isolation amplifier to match the sensor output to your acquisition system. Avoid clamping around multi-core cables, and keep the device dry and within its intended ambient conditions. When measuring in high-noise environments, provide shielding and filtering for the ADC input to improve measurement stability.