200A High-Precision 12MM Closed AC Current Transformer
Product No.: ZH-CT12
Compact 12mm through-hole design
High accuracy up to 0.1%
Easy PCB or cable installation
OEM & ODM supported
The ZH-CT12 Closed Current Transformer is a high-performance AC current sensor engineered for industrial current measurement and energy monitoring applications. With a 12mm inner diameter, 200A maximum current capacity, 0.1% high accuracy, and a durable flame-retardant ABS housing, it provides reliable and stable current measurement in demanding environments.
Its 3-meter lead wire offers flexible installation in electrical panels, distribution cabinets, and industrial equipment. The compact 60 × 45 × 21 mm design makes it suitable for applications where installation space is limited while maintaining excellent measurement performance.
The ZH-CT12 is widely used with RS485 Modbus data acquisition modules, PLC systems, smart energy meters, SCADA systems, power analyzers, and IoT energy management platforms.
Product Features
✔ Compact 12mm through-hole design
✔ High accuracy up to 0.1%
✔ Flame-retardant ABS enclosure
✔ Excellent linearity
✔ Low phase error
✔ Stable temperature performance
✔ Easy PCB or cable installation
✔ Long-term reliable operation
✔ Suitable for industrial environments
✔ OEM & ODM supported
✔ Maximum Current up to 200A
✔3 Meters Lead Wire
Technical Specifications
Available Current Ratios
Item
Specification
Model
ZH-CT12
Transformer Type
Closed Current Transformer
Inner Diameter
12mm
Housing Material
Flame-retardant ABS
Accuracy
0.1%
Lead Length
3 meters
Rated Current
200A Max
Size
60x45x21mm
Output Type
Current Output
Frequency
50/60Hz (Custom Available)
Operating Temperature
-20℃ ~ +70℃
Insulation
High Insulation Design
Custom ratios are available according to customer requirements.
Primary Current
Secondary Output
20A
10mA
50A
25mA
100A
50mA
150A
75mA
200A
100mA
Applications
The ZH-CT12 is widely used in:
1.Industrial Automation
2.Energy Management Systems (EMS)
3.Smart Energy Meters
4.Power Distribution Cabinets
5.Electrical Control Panels
6.RS485 Modbus Data Acquisition Modules
7.PLC Monitoring Systems
8.SCADA Systems
9.Solar PV Monitoring
10.EV Charging Stations
11.UPS Monitoring
12.Battery Testing Equipment
13.Generator Monitoring
14.Building Energy Management Systems (BEMS)
15.Factory Power Monitoring
Product Advantages
1.0.1% High Accuracy
Designed for precision current measurement, the ZH-CT12 delivers stable and accurate output for industrial automation, energy management, and electrical monitoring systems.
2.Supports High Current up to 200A
Capable of measuring AC current up to 200A, making it suitable for power distribution, industrial machinery, charging equipment, and heavy electrical loads.
3.Flexible Installation
The integrated 3-meter lead wire allows easy installation inside switchboards, electrical cabinets, and remote monitoring systems without additional cable extensions.
4.Flame-Retardant ABS Construction
The enclosure is manufactured from industrial-grade flame-retardant ABS, offering excellent electrical insulation, impact resistance, and long-term durability.
5.Compact and Reliable
Despite its high current capacity, the transformer maintains a compact 60 × 45 × 21 mm footprint, making it easy to integrate into space-constrained installations.
Why Choose JSH Electronic?
JSH Electronic specializes in industrial signal acquisition and current sensing solutions.
We provide:
--OEM Manufacturing
--ODM Design
--Fast Delivery
--Factory Direct Supply
--Strict Quality Control
--CE & RoHS Products
--Professional Technical Support
FAQ
1.What is the maximum measurable current?What is the maximum measurable current?What is the maximum measurable current?
The ZH-CT12 supports AC current measurement up to 200A.
2.What is the inner diameter?
The transformer features a 12mm through-hole, suitable for a wide range of power cables.
3.What is the cable length?
The standard lead wire length is 3 meters, with custom lengths available.
4.Is the housing flame-retardant?
Yes. The enclosure is made from industrial-grade flame-retardant ABS, ensuring excellent insulation and operational safety.
5.Is it compatible with RS485 Modbus data acquisition modules?
Yes. It is widely used with RS485 Modbus acquisition modules, PLCs, power analyzers, smart energy meters, and industrial monitoring systems.
6.Can this transformer be customized?
Yes. OEM and ODM services are available, including current ratio, cable length, connectors, housing, branding, and packaging.
