The SCT-013-000 50A Non-invasive AC Current Sensor is a high-accuracy split-core current transformer designed for safe, contact-free AC current monitoring. This sensor is ideal for measuring AC loads in residential, industrial, and commercial applications without directly disconnecting wiring. Built with a durable ferrite core, UL94-V0 flame-retardant housing, and reliable mechanical strength, it is widely used in lighting systems, AC motors, air compressors, energy monitoring, smart metering, automation, and current protection circuits.

This model provides stable and accurate current-to-voltage signal conversion when used with a burden resistor, making it fully compatible with microcontrollers, Arduino, ESP32, PLC systems, and energy monitoring platforms like OpenEnergyMonitor. Designed for long life and precision, the SCT-013-000 allows easy clip-on installation with a robust split-core latch tested for over 1000 operations.

The SCT-013-000 is engineered for precise AC current measurement up to 50A, making it well-suited for electrical monitoring, power consumption analysis, and equipment protection systems. Its non-invasive split-core structure enables users to simply clamp the sensor around an AC wire without cutting or interrupting the circuit, ensuring maximum safety during installation and maintenance.

With ±3% non-linearity, high dielectric strength of 6000V AC, and a wide working temperature range, it performs reliably in harsh conditions. The sensor features two output forms: current output and voltage output (when a sampling resistor is added), offering flexibility for various electronic applications. This makes it an excellent choice for energy meters, smart home automation, IoT power monitoring, load analysis, and industrial control systems.

Features:

• Split-core non-invasive AC current transformer for safe installation.

• Supports AC current measurement from 0A to 50A.

• Superior ferrite core for stable and accurate sensing.

• UL94-V0 flame-retardant housing for enhanced safety.

• High dielectric strength of 6000V AC for 1 minute ensures insulation reliability.

• Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, STM32, and PLC systems.

• Suitable for real-time monitoring of AC motors, lighting equipment, HVAC systems, compressors, and power distribution.

• Non-linearity within ±3% for consistent readings.

• Strong mechanical design with opening/closing durability of 1000+ cycles.

• Compact opening size 13×13mm fits most household and industrial wires.

• Ideal for power management, energy audits, load detection, and automation projects.

• Compatible with energy monitoring projects such as Open Energy Monitor.

How to Use:

• Clip the sensor around the live AC wire only, not the neutral and live together.

• For voltage output, connect the built-in burden resistor model or add an external resistor for current-to-voltage conversion.

• Interface with ADC inputs of microcontrollers to read the proportional signal.

• Use calibration values according to your system’s ADC resolution.

• Ensure secure clipping to avoid loose readings.

• Avoid placing near strong electromagnetic interference for best accuracy.

• Recommended for use with analog input filters for stable measurement.

Product Instructions:

• Do not exceed 50A input for safe operation.

• Verify correct wire orientation for consistent readings.

• Keep the sensor closed tightly while in use.

• Install in dry environments within -25°C to 70°C operating range.

• Periodically check the latch for secure locking.

• Use shielded cables for long-distance signal transmission.

Specifications:

• Model: SCT-013-000

• Input Current Range: 0A–50A

• Core Material: Ferrite

• Non-Linearity: ±3% (10%–120% rated current)

• Dielectric Strength: 6000V AC / 1 min

• Anti-Flaming Rating: UL94-V0

• Mechanical Strength: 1000+ open/close cycles

• Opening Size: 13 × 13 mm (0.51 × 0.51 inch)

• Working Temperature: -25°C to 70°C

• Output Type: Current output / Voltage output (with burden resistor)

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