Protection Current Transformer ACST11 Series for Monitoring & Testing Systems

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Protection Current Transformer ACST11 Series for Monitoring & Testing Systems
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Features
Specifications
Frequencyrange: 50Hz To 60Hz
Weight: Lightweight, Typically Under 1kg
Material: High-grade Silicon Steel Core With Plastic Housing
Security Facto: FS<5
Winding Form: Single Layer & Tightly Wound Type
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ACST11 Protection Current Transformer

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Monitoring Protection Current Transformer

Basic Infomation
Place of Origin: China
Brand Name: SHINHOM
Certification: RoHS/ISO/UL/CE/IATF16949/CNAS
Model Number: ACST11
Document: ACST11 Series.pdf
Payment & Shipping Terms
Delivery Time: 2~8weeks
Payment Terms: L/C,T/T
Product Description

The ACST11 series protection-grade current transformer adopts a split bobbin (divided frame) design, providing excellent insulation performance and a dielectric strength of up to 3000 Vrms. It is suitable for applications such as protective current monitoring, test protection systems, and electrochemical monitoring.

This current transformer complies with UL-certified Class B insulation system standards, ensuring safe and reliable operation in industrial environments. Its compact structure allows easy integration into space-constrained equipment.

The ACST11 series offers multiple turns ratio options ranging from 100 to 1500 turns, with a secondary inductance range of 40 mH to 6800 mH, and a maximum primary current rating from 12 A to 300 A, enabling flexible adaptation to various current sensing and measurement requirements.


Product Features
  • UL Class B insulation – High thermal endurance, reliable performance

  • Dielectric strength 3000Vrms – Excellent safety isolation

  • Split bobbin design – Enhanced insulation, superior safety

  • Compact package – Saves PCB space

  • Turn ratio range – 100T to 1500T

  • Secondary inductance – 40mH to 6800mH

  • Max primary current – 12A to 300A


Electrical Specifications
Part Number Turns Ratio Sec Inductance Ls (mH) DCR Rs (Ω) Max Pri Current (A) Max Sec Wire Dia (mm)
ACST11-101 100 40.0 1.1 300 0.25
ACST11-151 150 90.0 2.0 280 0.23
ACST11-201 200 160 3.5 270 0.20
ACST11-301 300 360 7.5 250 0.17
ACST11-501 500 750 19 190 0.14
ACST11-701 700 1500 47 130 0.10
ACST11-102 1000 3000 104 120 0.08
ACST11-152 1500 6800 230 100 0.06

Applications
  • Protection current monitoring – Overcurrent protection in power systems

  • Testing protection systems – Relay protection device testing

  • Electrochemical monitoring – Current detection in electrochemical processes

  • Industrial control equipment – Motor protection and condition monitoring

  • Power supply systems – Switching power supply current sensing


FAQ

Q: What is the insulation rating of the ACST11 series current transformer?

A: The ACST11 series complies with the UL-certified Class B insulation system (thermal rating 130°C) and offers a dielectric strength of up to 3000 Vrms, ensuring high safety and reliability in demanding applications.

Q: What are the advantages of the split bobbin design?

A: The split bobbin structure improves primary-to-secondary insulation separation, enhancing withstand voltage capability. It also simplifies winding processes, which helps reduce manufacturing complexity and overall production cost.

Q: How do I select the appropriate turns ratio model?

A: Selection should be based on the maximum primary current of the application. For example, if the maximum current is 200 A, it is recommended to choose ACST11-201 (rated up to 270 A) to ensure sufficient design margin and reliable operation.

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Get in touch with us
Contact Person : Jack wang
Tel : 13909218465
Fax : 86-029-87851840
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