Description
The SCT-013-030 is a split-core AC current transformer designed for non-invasive current measurement in energy monitoring, load diagnostics, and equipment protection. As a voltage-output variant in the SCT-013 family, it includes an internal burden resistor (approximately 62Ω), delivering a direct 0–1V AC output proportional to the primary current—no external signal-conditioning resistor is required . The clamp-on design allows installation around an existing insulated conductor without cutting or disconnecting the wire, making it suitable for retrofitting into live electrical installations. This model is rated for 30A AC and is commonly used for monitoring individual appliances, lighting circuits, and small equipment. The 1-meter cable terminates in a standard 3.5mm audio plug, with the tip and sleeve carrying the signal .
Accuracy note: Listings vary. YHDC-branded units are specified at ±1% accuracy with linearity ≤0.2% , while generic/third-party units typically list non-linearity of ±3% over the rated range . For critical applications, calibrate against a known reference load.
Features
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Non-Invasive Split-Core Design: Clamps around an existing conductor without disconnecting the circuit, enabling safe retrofitting into live installations.
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Voltage Output with Internal Burden Resistor: Provides a direct 0–1V AC output ready for ADC connection; no external burden resistor required .
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30A Measurement Range: Suitable for individual appliances, lighting circuits, and small equipment monitoring; at 230V, capable of monitoring loads up to approximately 6,900W .
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13mm × 13mm Opening: Accommodates typical domestic and light commercial wiring .
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1-Meter Cable with 3.5mm Plug: Standardized connector simplifies connection to breakout boards and energy monitoring shields .
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Ferrite Core Construction: Provides stable magnetic coupling and consistent ratio across the measurement range .
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Safety Latch Mechanism: Secure closure helps maintain core alignment and measurement accuracy.
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Wide Operating Temperature: Functions from -25°C to +70°C for indoor installation environments .
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SCT-013-030 |
| Primary Current Range | 0–30A AC (RMS); max input 60A |
| Output Signal | 0–1V AC (voltage output) |
| Burden Resistor | Internal (~62Ω) |
| Opening Size | 13mm × 13mm |
| Cable Length | 1 meter |
| Connector | 3.5mm audio plug |
| Accuracy (YHDC branded) | ±1%, linearity ≤0.2% |
| Non-linearity (generic) | ±3% (10%–120% of rated input) |
| Operating Temperature | -25°C to +70°C |
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