Description
The SCT-013-050 is a split-core AC current transformer designed for non-invasive current measurement in industrial and commercial energy monitoring, load diagnostics, and equipment protection. As a voltage-output variant in the YHDC SCT-013 family, it includes an internal sampling resistor, delivering a direct 0–1V AC output proportional to the primary current—no external burden resistor is required for basic operation . 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 50A AC input and is commonly used for monitoring AC motors, lighting equipment, air compressors, and HVAC systems .
Specification consistency note: Manufacturer documentation for the SCT-013 series specifies non-linearity of ±3% (10%–120% of rated input), while several distributors list ±1% accuracy with linearity ≤0.2% for the SCT-013-050 . The ±1% figure is widely published for this specific model, but buyers should verify the accuracy guarantee with their supplier. For critical applications, calibration against a known reference load is recommended.
Features
-
Non-Invasive Split-Core Design: Clamps around an existing conductor without disconnecting the circuit, enabling safe retrofitting into live installations .
-
Voltage Output with Internal Sampling Resistor: Provides a direct 0–1V AC output ready for ADC connection; no external burden resistor required for basic use .
-
50A Measurement Range: Suitable for AC motors, lighting circuits, air compressors, and HVAC equipment monitoring .
-
13mm × 13mm Opening: Accommodates typical industrial and commercial wiring .
-
1-Meter Cable with 3.5mm Plug: Standardized connector simplifies connection to energy monitoring boards and breakout adapters .
-
Ferrite Core Construction: Provides stable magnetic coupling and consistent ratio across the measurement range .
-
Safety Lock 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
| Parameter | Specification |
|---|---|
| Model | SCT-013-050 |
| Primary Current Range | 0–50A AC (RMS); max input approximately 70A |
| Output Signal | 0–1V AC (voltage output) |
| Turns Ratio | 1:1800 |
| Burden Resistor | Internal (sampling resistor built in) |
| Opening Size | 13mm × 13mm |
| Cable Length | 1 meter |
| Connector | 3.5mm audio plug |
| Accuracy (distributor spec) | ±1%, linearity ≤0.2% |
| Non-linearity (manufacturer spec) | ±3% (10%–120% of rated input) |
| Operating Temperature | -25°C to +70°C |
| Dielectric Strength | 1000V AC/1min (shell to output) ; other sources list 3.5kV–6kV |
Reviews
There are no reviews yet.