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Split Core Current Transformers (CTSA Series) Image 1

Split Core Current Transformers (CTSA Series)

Applications

  • Electric motors
  • Smart lighting solutions
  • Power management
  • Building automation systems

Features

  • Low cost
  • 6 standard sizes
  • Split core design for safer and easier installation
Download Datasheet

Specifications

  • Rated primary input
    5 to 1200A AC
  • Rated secondary output
    0.333V AC / 5A AC / 1A AC / customer specified
  • Accuracy class
    0.5, 1.0, 3.0
  • Operating temperature
    -15℃ to +50℃
  • Max voltage for equipment (RMS)
    0.72kV AC
  • Dielectric strength
    4000V AC, 10 seconds
  • Insulation resistance
    100MΩ @ 500V DC
  • Frequency
    50Hz to 1kHz
  • Case material
    PC (UL flame retardant rating 94-V0)
  • Environment
    RoHS compliant
  • IEC 61869-1 and IEC 61869-2 compliant / CE approved / UL approved

Product Overview

The CTSA Series Split Core Current Transformer from Yuanxing Electronics enables safe, non-invasive AC current monitoring. Featuring a split core design for easy installation without disconnecting conductors, it comes in four sizes with a primary input range of 5-1200A. This 5A split core current transformer offers secondary outputs of 5A, 1A, or 0.333V, with accuracy classes from 0.5 to 3.0. The unit, housed in a UL94-V0 flame-retardant case, operates from -15℃ to +50℃ and is rated for equipment up to 0.72kV. This reliable 5A split core current transformer is compliant with IEC 61869, RoHS, CE, and UL standards.

Typical Products

Part Number Ratio Rated Input (A) Accuracy Class Phase Error Frequency (Hz) Window Diameter (mm) Dimension (mm)
CTSA010 1000:1 / 2000:1 / 2500:1 / 3000:1 5 / 10 / 20 / 50 / 75 1.0 / 3.0 ≤30’ 50 to 1000 10 L-W-H
30.8-28.8-42.8
CTSA016 1000:1 / 2000:1 / 2500:1 / 3000:1 75 / 100 / 150 0.5 / 1.0 ≤30’ 50 to 1000 16 L-W-H
37.8-33.9-49.0
CTSA024 1000:1 / 2000:1 / 2500:1 / 3000:1 100 / 150 / 200 / 250 0.5 / 1.0 ≤30’ 50 to 1000 24 L-W-H
53.3-40.2-70.2
CTSA035 1000:1 / 2000:1 / 2500:1 / 3000:1 200 / 300 / 400 / 500 0.5 / 1.0 ≤30’ 50 to 1000 35 L-W-H
65.8-42.8-83.5
CTSA050 2000:1 / 3000:1 / 4000:1 / 5000:1 / 6000:1 400 / 500 / 600 / 800 / 1000 0.2 / 0.5 / 1.0 ≤30’ 50 to 1000 50 L-W-H
95.2-48.5-109.5
CTSA050B 2000:1 / 3000:1 / 4000:1 / 5000:1 / 6000:1 400 / 500 / 600 / 800 / 1000 0.2 / 0.5 / 1.0 ≤30’ 50 to 1000 50.2 L-W-H
87.2-49.3-112.5
Part Number Rated Input (A) Burden (VA) Accuracy Class Frequency (Hz) Window Diameter (mm) Dimension (mm)
CTSA024 100 / 200 / 300 1 / 2.5 / 3.75 / 5 1.0 / 3.0 50 / 60 24 L-W-H
53.3-40.2-70.0
CTSA035 100 / 200 / 300 / 400 / 500 / 600 1 / 2.5 / 3.75 / 5 0.5 / 1.0 / 3.0 50 / 60 35 L-W-H
65.8-42.8-83.5
CTSA050 300 / 400 / 500 / 600 / 800 / 1000 / 1200 2.5 / 3.75 / 5 / 7.5 0.5 / 1.0 / 3.0 50 / 60 50 L-W-H
95.2-48.5-109.5
CTSA050B 300 / 400 / 500 / 600 / 800 / 1000 / 1200 2.5 / 3.75 / 5 / 7.5 0.5 / 1.0 / 3.0 50 / 60 50.2 L-W-H
87.2-49.3-112.5

Frequently Asked Questions

Current transformers/sensors, voltage transformers/sensors, and Rogowski coils from Yuanxing are widely adopted across the following industries:
Electric Power Grids, Renewable Energy, Rail Transit, Industrial Automation & Motor Control, Aerospace, Data Centers, Telecommunications.

Yes. Our in-house R&D and engineering teams can support customized current/voltage transformers, Rogowski coil and current/voltage sensor designs, including special ratios, form factors, output signals, and mounting requirements.

Yes. We can supply detailed product specifications, datasheets, and wiring/application notes for each standard or customized configuration.

Yes. With over 20 years of export experience, we serve customers worldwide and provide full sales and logistics support for both small-quantity orders and large-volume projects.

Please submit an inquiry via email or our online contact form. For selected products, we can provide free samples; shipping will be arranged using your courier account (e.g., DHL / FedEx / UPS).