Non-Invasive AC Current Sensor SCT-013-000 | 5A/1V Split Core Transformer | 1% Precision 1meter

Description

The SCT-013 series is a split-core AC current transformer designed for non-invasive current measurement in energy monitoring, load diagnostics, and automation systems. The clamp-on design allows the sensor to be installed around an existing conductor without cutting or disconnecting the wire, making it suitable for retrofitting into existing electrical installations. The split core opens to approximately 13mm × 13mm and closes with a safety latch; the core must be fully closed during measurement, as even a small air gap can introduce measurement errors of up to 10%. The sensor outputs an analog signal proportional to the AC current flowing through the primary conductor.

Model-dependent behavior: The standard SCT-013-000 (100A) provides a current output of 0–50mA and requires an external burden resistor (typically 33Ω for 5V systems or 18Ω for 3.3V systems) to convert the signal to a measurable voltage. Voltage-output variants (such as the 5A/1V configuration described in your title) include an internal burden resistor and can connect directly to an ADC input. The 1-meter cable terminates in a standard 3.5mm audio plug, with the tip and sleeve carrying the signal and the ring unconnected. The sensor is suitable for individual makers building Arduino-based energy monitors and for business purchasers seeking a cost-effective, non-invasive current sensing solution for equipment monitoring and energy audits.

Features

• Non-Invasive Split-Core Design: Clamps around an existing conductor without disconnecting the circuit, enabling safe retrofitting into live installations.

• Model-Dependent Output: SCT-013-000 provides 0–50mA current output requiring an external burden resistor; voltage-output variants provide a direct voltage signal for ADC connection.

• 13mm × 13mm Opening: Accommodates typical domestic and light commercial wiring.

• 1-Meter Cable with 3.5mm Plug: Standardized connector simplifies connection to energy monitoring shields and breakout boards.

• Ferrite Core Construction: Provides stable magnetic coupling and consistent ratio across the measurement range.

• Safety Latch Mechanism: Secure closure helps maintain core alignment and measurement accuracy.

• Wide Operating Temperature: Functions from -25°C to +70°C for indoor installation environments.

Technical Specifications