Product Overview
The YDBH0.66-I Series current transformer offers accurate current sensing with minimal insertion loss. Its split-core design allows it to be clamped around conductors without disconnecting circuits, making it ideal for field upgrade, energy monitoring systems, and power meter integration. Available in 5A primary output, this CT is compatible with a wide range of energy meters and power analyzers.
Built with high-grade core and insulation materials, this CT ensures stable performance, low temperature drift, and long-term reliability in industrial environments.
The primary current is 5A~5000A,while the secondary current is 20mA, 0.3A, 1A, 5A. The products line covers accuracy of 0.2S, 0.5S, 0.2, 0.5, 1.0.
Vacuum-heat treatment for the iron core achieves excellent performance and stable precision.
The outer case is made of PC materials which is non-flammable. the performance is reliable and the product is safe for use.
Easy installation; Fixed by metal slice or Platen.
The performance meets the standard of GB/T 20840.2-2014 “Current Transformer“.


CE Certification
Download CE certificates
2025年 YDBH0.66系列电流互感器TUV证书 编号TASH-250918444-V1 (1)


YDBH0.66-I Series Model Description
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Model
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Rated input current
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Rated output current
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Rated overload
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Accuracy
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Dimesion(mm)
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Aperture (mm)
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YDBH0.66-30I-B
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5A~600A
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5A
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0.1VA ~ 20VA
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0.2, 0.2s,
0.5, 0.5s,
1.0
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60*81*36
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23
|
|
YDBH0.66-40I-B
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75A~1000A
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75*98*41
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31
|
|||
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YDBH0.66-60I-B
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300A~2000A
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102*133*45
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45
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Installation
Key Features & Benefits
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Split-Core Design — Enables easy installation without disrupting circuits
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5A Secondary Output — Compatible with most energy meters and measurement devices
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High Accuracy & Stability — Low error, good linearity, and minimal drift
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Wide Operating Conditions — Suitable for standard industrial temperature and humidity ranges
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Compact & Durable Housing — Strong insulation, flame-retardant casing
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Multiple Window Sizes — To fit various conductor sizes and panel arrangements
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Long-Term Reliability — Designed for stable performance over many years
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OEM / Customization Support — Available in custom ratios, logo, packaging
Applications
- The YDBH0.66-I Series split core current transformer is ideal for:
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Retrofitting energy meters in existing electrical panels
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Industrial energy monitoring systems
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Smart building and BMS / EMS integration
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Power metering in factories, offices, and commercial buildings
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Integration into SCADA / IoT / telemetry systems
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Load analysis and power quality monitoring modules
Why Choose YADA YDBH0.66-I Series?
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Experienced Manufacturer — YADA’s decades of expertise in power instrumentation
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Precision & Stability — Minimal drift, high linearity, consistent performance
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Easy Installation — Split core type allows non-invasive installation
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Flexible & Customizable — Ratio, casing, labeling, and packaging customization supported
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Quality Assurance — Stable quality, long-term support, standard warranty
FAQ
Q1: What is a split core current transformer and why use it?
A: A split core CT can be installed without disconnecting existing wiring, simplifying retrofits and minimizing downtime.
Q2: What is the secondary output of this CT?
A: It provides a 5A secondary output compatible with standard meters and measurement devices.
Q3: What accuracy class does this CT belong to?
A: The accuracy depends on the model variant (e.g. Class 0.5, 1.0). Please refer to the datasheet for the specific model.
Q4: What conductor sizes can it accommodate?
A: It comes with a specific window size (inner opening); please check your cable size and match accordingly.
Q5: Can custom ratios or housings be provided?
A: Yes, we support OEM/ODM customization including custom CT ratios, casing styles, logos, and packaging.











