CHALLENGE INDUSTRIAL CO., LTD.

Expert manufacturer of current transformers, voltage transformers, distribution transformers, epoxy insulators, and other electrical and electronic apparatus.

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Optimize Your Power Solutions with High-Capacity Power Capacitors | CIC

Based in Taiwan since 1974, CHALLENGE INDUSTRIAL CO., LTD. specializes in manufacturing high-quality electrical products, including current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With over 45 years of expertise and technology collaboration with Germany's MWB, CIC is ISO certified and offers products recognized for reliability in various industrial applications.

Challenge Industrial Co., Ltd. (CIC) stands at the forefront of electrical innovation, specializing in the manufacturing of current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With a legacy built on over 45 years of engineering excellence and leveraging advanced German technology, CIC commits to delivering high-quality, ISO-certified electrical solutions. Their comprehensive product range, paired with an ISO-certified approach and a TAF-accredited laboratory, ensures reliability and performance for a diverse global market. CIC is your go-to source for electrical components that power progress and efficiency.

CIC has been offering customers high-capacity power capacitors since 1974, both with advanced technology and 50 years of experiences, CIC ensures each customer's demands are met.

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SpecificationsAction
Low-Voltage Window-Type Current Transformer (POS Series), with ABS Casing
ABS-Encased Current Transformer - Low Voltage - Window Type - Indoor Use

Standards: IEC, IEEE Rated Voltage: ≤ 0.72 kV Frequency: 50 or 60 Hz AC/BIL: 3 / - kV For indoor applications Self-extinguishing ABS exterior provides a high level of insulation and excellent moisture resistance Compact and lightweight – ideal for wiring and installation in smaller spaces Top-facing terminals for easy wiring Terminal covers (optional) Other Standards and Specifications available

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Resin-Insulated LV Current Transformers (Window-Type, Indoor Model). Model:  EOS-90RN
Low-Voltage (LV) Resin-Encapsulated Current Transformer - Window Type - Indoor Use
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Single-Core Low-Voltage Current Transformers (Rectangular Window-Type)
Single-Core Rectangular-Window Current Transformer - Resin Encapsulated - Low Voltage - Indoor

Standard: IEC or IEEE For indoor use Rated voltage: ≦ 0.72 kV Frequency: 50 or 60 Hz AC/BIL: 3/- kV Ith = 40 In/1S Included: a choice of mounting accessories Other specifications and standards available upon request

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Two-Core Low-Voltage Current Transformers (Rectangular Window-Type)
Two-Core Rectangular-Window Current Transformer - Resin Encapsulated - Low Voltage - Indoor

Standard: IEC or IEEE For indoor use Rated voltage: ≦ 0.72 kV Frequency: 50 or 60 Hz AC/BIL: 3/- kV Ith = 40 In/1S Included: a choice of mounting accessories Other specifications and standards available upon request

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Split-Core Low-Voltage Current Transformers (Rectangular Window-Type)
Split-Core Rectangular-Window Current Transformer - Resin Encapsulated - Low Voltage - Indoor

Standard: IEC or IEEE For indoor use Rated voltage: ≦ 0.72 kV Frequency: 50 or 60 Hz AC/BIL: 3/- kV Ith = 40 In/1S Included: a choice of mounting accessories Other specifications and standards available upon request

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ABS-Encased Split-Core Current Transformers (Rectangular Window-Type)
Split-Core Rectangular-Window Current Transformer - ABS Encased - Low Voltage - Indoor

Standard: IEC Rated voltage: ≦ 0.72 kV Frequency: 50 or 60 Hz For indoor application AC/BIL:3/- kV Other specifications and standards available upon request

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Low-Voltage Epoxy-Cast Current Transformers for Indoor Use (Window-Type), Current Ratio 800/5A to 4000/5A, Window/Busbar I.D. up to 6.3"
Low-Voltage Current Transformer for Higher Current Ratio and Higher Accuracy - Window Diameter up to 160mm
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Epoxy-Cast Bushing-Type Current Transformers for 23kV C-GIS (BCTs / Bushing CTs)
Bushing Current Transformers for 23 kV C-GIS

Standards: IEC or IEEE Indoor application Cast in Araldite® epoxy resin Multi-Ratio Bushing CTs (BCTs) / Window-type current transformers Designed for 23 kV C-GIS Insulation Level: 0.72 kV Frequency: 50 or 60 Hz AC/BIL: 4/10 kV Other standards and specifications available upon request

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Zero-Phase Current Transformers for Earth-Fault Protection
Zero-Phase Current Transformers (ZCT) for Ground-Fault Protection

Standards: JEC, IEC or IEEE Indoor application For a grounded or ungrounded system (see table below) Insulation: Araldite® epoxy resin Insulation Level: 0.72 kV Frequency: 50 or 60 Hz Other standards and specifications available upon request

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Low-Voltage Current Transformers or Extended-Range Current Transformers (ERCT) for Revenue Metering (ROS-A Series)
Low-Voltage Current Transformer / Extended Range Current Transformer (ERCT) for Revenue Metering, Window-Type
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Ring-Core Protective-Type Current Transformer for Outdoor Use (Epoxy-Cast) – Challenge Industrial Co., Ltd. (CIC)
Low-Voltage Ring-Core Protective-Type Current Transformer for Outdoor Use (Epoxy-Cast)
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Split-Core Protective-Type Current Transformer for Outdoor Use (Epoxy-Cast) – Challenge Industrial Co., Ltd. (CIC)
Low-Voltage Split-Core Protective-Type Current Transformer for Outdoor Use (Epoxy-Cast)
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Dry-Type Bushing Current Transformers for GIS or Power Transformers
Dry-Type Bushing Current Transformers for GIS or Power Transformers

Standards: IEC or IEEE Frequency: 50 or 60 Hz AC/BIL: 4/10 kV Multi-ratio Type-tested

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(Model EW-3S) Medium-Voltage Coil Molded Current Transformer - 3.6 kV
3.6 kV Current Transformer, Coil Molded

Standard: IEC or IEEE* Indoor application Coil molded High-grade silicon steel core Rated Voltage: ≦ 3.6 kV Frequency: 50 or 60 Hz Ith = 16 kA/1S AC/BIL: 10/40kV Current Ratio: ≦ 400/5A Burden / Accuracy: 40VA/1.0 Approximate Weight: 5 kg

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(Model EW-3C) Medium-Voltage Dual-Core Coil Molded Current Transformer with Cut Cores, 3.6 kV
Two-Core Coil Molded Current Transformer with Cut Cores, 3.6 kV

Standard: IEC or IEEE* Indoor application Coil molded High-grade silicon steel cores System Voltage: ≤ 3.6 kV Frequency: 50 or 60 Hz Ith: 16 kA/1S Current Ratio: ≦ 300A/5-5A AC/BIL: 10/40kV Approx. Weight: 9 kg

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3.6 kV/7.2 kV Current Transformers (1-Core/2-Core & Single/Dual-Ratio Options), CR-3(6)S-T Series
3.6 kV / 7.2 kV Current Transformers (1-Core / 2-Core & Single-Ratio / Dual-Ratio Options)

Standards: IEC or IEEE* Indoor application; epoxy-cast type Insulated with Araldite® epoxy resin Single-Core / Two-Core Single-Ratio / Dual-Ratio Frequency: 50 or 60 Hz Burden Rating: ≦ 3.6 kV (Model: CR-3S-60T/90T) or ≦ 7.2 kV (Model: CR-6S-80T)

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3.6 kV Dual-Core Epoxy-Cast Current Transformer (Indoor/Medium-Voltage) – Model ER-3C
3.6 kV Two-Core Epoxy-Cast Current Transformer
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MV Epoxy-Cast Current Transformers for Indoor Use (Window-Type)
Epoxy-Cast Window-Type Current Transformers for Indoor Application, 3.6 kV
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(Model EW-10SH) Medium-Voltage Coil Molded Current Transformer - 12 kV
Coil Molded Current Transformer with Cut Core, 12 kV

Standard: IEC or IEEE* Indoor application Coil molded High-grade silicon steel core Current Ratio: ≦ 400/5A System Voltage: ≦ 12 kV Frequency: 50 or 60 Hz AC/BIL: 28/75 kV Ith = 16 kA/1S Burden / Accuracy: 40VA/1.0 Approx. Weight: 7 kg

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12 kV Two-Core Current Transformers, EWF-10D Series
12 kV Two-Core Current Transformers
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Multi-Ratio Epoxy-Cast Current Transformers (Single-Core & 2-Core Types) for 15 kV Max. Power Systems
Multi-Ratio Current Transformers (Single-Core & Two-Core Types) for 15 kV (max.) Power Systems

Standards: IEC or IEEE* Indoor application; window-type design Available in 2-core and single-core types System Voltage: ≦ 15 kV Frequency: 50 or 60 Hz AC/BIL:28/75 kV Primary Current: 500~3000A (single-ratio or multi-ratio) Ith = Max 43.3kA/1S

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EWF-20DA (24 kV Epoxy-Cast Current Transformer for Indoor Use)
24 kV Epoxy-Cast Current Transformers for Indoor Application
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24 kV Two-Core Current Transformer (“U-Shaped Top” Design) – Model: EWF-20DI
24 kV Two-Core Current Transformer (“U-Shaped Top” Design)
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Current Transformer for SF6 Gas-Insulated MOF Panel
Current Transformer for SF6 Gas-Insulated MOF Panel

Indoor usage; epoxy cast Standard: IEEE System Voltage: ≦ 25.5 kV Frequency: 50 or 60 Hz Intended for a SF6 gas-insulated MOF panel Approximate Weight: 43 kg

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