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YHDC SCT010T-D

YHDC SCT010T-D Split Core Current Transformer Instruction Manual

Model: SCT010T-D

1. Product Overview

The YHDC SCT010T-D is a split core current transformer designed for non-invasive current measurement. It provides galvanic separation between the primary AC current circuit and the secondary 0-5V DC output circuit, ensuring safety and accuracy.

YHDC SCT010T-D Split Core Current Transformer
Figure 1: YHDC SCT010T-D Split Core Current Transformer

Key Features:

  • Small and easy to open design.
  • Galvanic separation for safety.
  • Easy installation without disturbing main cables.
  • Safety lock buckle.
  • Built-in rectifier with screw terminal output.

2. Applications

This current transformer is suitable for various applications, including:

  • Remote control of current measurement in distributed PLC for SCADA systems.
  • Monitoring load trends of critical motors (e.g., compressors, fuel pumps) and other loads up to 150A.
  • Connecting to power consumption submeters for energy monitoring.
Application of current transformer in monitoring system
Figure 2: Example application in a monitoring system.

3. Specifications

Technical Index:

  • Mounting Type: Free hanging (In-Line)
  • Core Material: Ferrite
  • Applicable Standards: GB20840-2014
  • Operating Temperature: -25ºC to +60ºC
  • Storage Temperature: -30ºC to +90ºC
  • Frequency Range: 50Hz-1KHz
  • Waterproof Grade: IP00
  • Dielectric Strength:
    • Input (bare conductor)/Output: AC 800V/1min 50Hz
    • Output/Housing: AC 3.5KV/1min 50Hz

Detailed Product Parameters:

ParameterValue
ModelSCT010T-D
Rated Input Current0-100A
Rated Output0-5V
Ratio100A/5V
Accuracy±1%
Linearity≤0.2%
Phase Error≤1°
Insulation Voltage3000V
Flame Retardant RatingUL94-V0
Weight50g
Opening Size10mm
Lead Length1m
Output ModeScrew terminal
Output Wire0.5mm²
Max Primary Current150A
Max Primary Voltage600V
Max Primary Conductor Size10mm
Table of detailed product parameters for SCT010T-D
Figure 3: Detailed Product Parameters.
Dimensions diagram of SCT010T-D current transformer
Figure 4: Dimensions of the SCT010T-D (Length 46mm, Width 25mm, Height 24mm, Opening 10mm).

4. Setup and Installation

The SCT010T-D current transformer features a split-core design for easy installation without interrupting the primary circuit.

Installation Steps:

  1. Ensure the power to the primary conductor is disconnected before installation for safety.
  2. Open the current transformer by pressing the safety lock buckle.
  3. Place the primary conductor (the wire carrying the current to be measured) through the 10mm opening of the transformer.
  4. Close the current transformer, ensuring the safety lock buckle is securely fastened.
  5. Connect the output wires from the screw terminals to your monitoring or protection device. Refer to the wiring diagram for correct polarity.
Image showing the split core current transformer open
Figure 5: Opening the split core for installation.
Image showing the current transformer installed on a cable
Figure 6: Current transformer installed on a primary conductor.

5. Operating Instructions

Once installed and connected, the SCT010T-D will convert the AC current in the primary conductor into a proportional 0-5V DC output signal. This signal can then be read by a PLC, data logger, or other monitoring equipment.

Wiring Diagram:

Wiring diagram for SCT010T-D current transformer
Figure 7: Wiring diagram showing connections to a monitoring device.

Ensure that the monitoring device is configured to accept a 0-5V DC input and is calibrated according to the transformer's ratio (100A/5V).

6. Maintenance

The YHDC SCT010T-D current transformer is designed for long-term, maintenance-free operation. However, periodic checks are recommended:

  • Visual Inspection: Periodically inspect the transformer for any signs of physical damage, such as cracks in the housing or damage to the output wires.
  • Connection Integrity: Ensure that the screw terminal connections remain tight and free from corrosion.
  • Environmental Conditions: Verify that the operating environment remains within the specified temperature range (-25ºC to +60ºC) and that the IP00 waterproof grade is respected (avoid direct exposure to water).
  • Cleaning: If necessary, gently clean the exterior of the transformer with a dry, soft cloth. Do not use abrasive cleaners or solvents.

7. Troubleshooting

If you encounter issues with your SCT010T-D current transformer, consider the following:

ProblemPossible CauseSolution
No output signal or incorrect reading
  • Incorrect wiring.
  • Primary conductor not properly seated.
  • Transformer not securely closed.
  • Primary current outside rated range.
  • Faulty monitoring device.
  • Check wiring against diagram (Figure 7).
  • Ensure primary conductor passes through the center of the opening.
  • Verify safety lock buckle is engaged.
  • Confirm primary current is within 0-100A.
  • Test monitoring device with a known signal source.
Inaccurate readings
  • External magnetic fields.
  • Improper calibration of monitoring device.
  • Damaged transformer.
  • Relocate transformer away from strong magnetic sources.
  • Recalibrate monitoring device based on 100A/5V ratio.
  • Contact support if physical damage is suspected.
Transformer not closing properly
  • Obstruction in the opening.
  • Damaged hinge or buckle.
  • Check for debris and clear it.
  • Contact support for replacement if damaged.

8. Warranty and Support

For warranty information, technical support, or service inquiries, please contact your vendor or the manufacturer directly. Ensure you have your product model (SCT010T-D) and purchase details available.

The product is certified with CE, indicating compliance with health, safety, and environmental protection standards for products sold within the European Economic Area.

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