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Split Core Current Transformers (CTSB Series) Image 1

Split Core Current Transformers (CTSB Series)

Applications

  • Energy monitoring devices
  • Relay protection devices
  • Power factor correction devices

Features

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

Specifications

  • Rated primary input
    100A to 5000A
  • Rated secondary output
    Specify upon ordering. 5A or 1A are most common.
  • Rated load
    1VA / 2.5VA / 5.0VA / 10VA / 30VA
  • Accuracy
    0.5 / 1.0 / 3.0
  • Case material
    polyphenylene oxide (UL flame retardant rating 94-V0)
  • Frequency
    50Hz / 60Hz
  • Operating temperature
    -15ºC to 50ºC
  • Environment
    RoHS compliant
  • CE & ETL approved / IEC 61869-1 and IEC 61869-2 compliant

Product Overview

Yuanxing Electronics’ CTSB Series Split Core Current Transformer features a split core design for safe and easy installation around existing conductors. It offers a broad rated primary input range from 100A to 5000A AC with standard secondary outputs of 5 or 1A AC. Available in five standard sizes with accuracies of 0.5, 1.0, or 3.0, it is suitable for energy monitoring, relay protection, and power factor correction. The robust case is made of UL94-V0 flame-retardant polyphenylene oxide. Compliant with IEC 61869, RoHS, and approved by CE & ETL, it is a cost-effective solution for industrial power systems.

Typical Products

Image Part Number Rated Input / Output (A) Frequency (Hz) Accuracy Class Opening Mechanism Dimension L-W-H (mm)
CTSB0203 Input: 100 / 150 / 200 / 250 / 300 / 400
Output: specify upon ordering 		50 to 400 0.5 / 1 / 3 Snap-on 105.0-89.0-40.0
CTSB0413 Input: 500 / 600 / 750 / 800 / 1000 / 1250 / 1500 / 2000 / 2500 / 3000
Output: specify upon ordering 		50 to 400 0.5 / 1 / 3 Hinged 193.0-125.4-44.0
CTSB0508 Input: 250 / 300 / 400 / 500 / 600 / 750 / 800 / 1000
Output: specify upon ordering 		50 to 400 0.5 / 1 / 3 Snap-on 145.0-114.0-48.0
CTSB0508B Input: 250 / 300 / 400 / 500 / 600 / 750 / 800 / 1000
Output: specify upon ordering 		50 to 400 0.5 / 1 / 3 Hinged 122.0-150.0-37.0
CTSB0512 Input: 600 / 700 / 1000 / 1250 / 1500 / 2000 / 2500 / 3000
Output: specify upon ordering 		50 to 400 0.5 / 1 / 3 Snap-on 192.0-143.0-49.0
CTSB0812 Input: 500 / 600 / 750 / 800 / 1000 / 1200 / 1250 / 1500
Output: specify upon ordering 		50 to 400 0.5 / 1 / 3 Snap-on 185.0-144.0-48.0
CTSB0812B Input: 500 / 600 / 750 / 800 / 1000 / 1200 / 1250 / 1500
Output: specify upon ordering 		50 to 400 0.5 / 1 / 3 Hinged 125.4-193.0-44.0
CTSB0816 Input: 1000 / 1200 / 1500 / 2000 / 3000 / 4000 / 5000
Output: specify upon ordering 		50 to 400 0.5 / 1 / 3 Snap-on 247.0-176.0-52.0

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).