Residual CT Series: Flexible Installation, Superior Balance
Suitable for cable circuit environments with a compact structure, small size, and flexible installation. It supports through-hole diameters from 45mm to 100mm and main circuit currents from 63A to 2000A.
High magnetic conductivity nickel steel or nanocrystalline core materials provide excellent linearity, high sensitivity, and stable current detection performance.
Outstanding balance characteristics and anti-electromagnetic interference capability greatly reduce false alarms and ensure reliable operation of monitoring and protection equipment.
Application scenarios
Industrial motor control system
High and low voltage distribution cabinet & power distribution room
PV & wind power new energy grid connection
Building & park energy consumption metering management
Inverter and automatic industrial control equipment
Substation and power relay protection
| Electrical Parameters | |
|---|---|
| Working frequency | 50~400Hz |
| Rated input | 10mA~5A |
| Measuring range | 10%In~130%In |
| Rated output | 0-1V or 0-0.5mA |
| Ratio difference | ≤+0.1% |
| Phase difference | ≤+10 points |
| Dielectric strength | 2.5KV/1mA/1min |
| Insulation resistance | DC500V/1000MΩ /min |
| Mechanical Parameters | |
|---|---|
| Shell | ABS, Flame retardant grade 94-V0 |
| Skeleton | PBT |
| Iron core | Nickel or nanocrystalline |
| Intermal structure | Environment friendly epoxy resin casting |
| Construction plan | Screw fixation |
| Working temperature | -12°C~+45°C |
| Ambient humidity | ≤85% |
| Connection mode | Terminal type / shielded strand 1.5m |
Note: Other specifications can be customized according to the specific requirements of customers.
| Model and Specification | Rated Input | Rated Output | Accuracy Class | Dimensions (mm) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | K | F | C | D | E | G | ||||
| CTYF-1125 | 0~1A | 0~1V (0.5mA) | 0.1 0.2 0.5 1.0 | 158 | 92 | 110 | 25 | 47 | 139 | 63 | M6 |
| CTYF-1535 | 198 | 102 | 150 | 35 | 47 | 147 | 63 | M6 | |||
| CTYF-2135 | 275 | 118 | 210 | 35 | 47 | 230 | 63 | M6 | |||
| CTYF-2545 | 315 | 128 | 250 | 45 | 47 | 268 | 63 | M6 | |||
| CTYF-2940 | 350 | 119 | 290 | 40 | 47 | 310 | 55 | M6 | |||
| CTYF-3440 | 400 | 119 | 340 | 40 | 47 | 360 | 55 | M6 | |||
| CTYF-3940 | 450 | 119 | 390 | 40 | 47 | 410 | 55 | M6 | |||
| CTYF-4440 | 500 | 119 | 440 | 40 | 47 | 460 | 55 | M6 | |||
| CTYF-4940 | 550 | 119 | 490 | 40 | 47 | 510 | 55 | M6 | |||
| CTYF-5440 | 600 | 119 | 540 | 40 | 47 | 560 | 55 | M6 | |||
| CTYF-5940 | 650 | 119 | 590 | 40 | 47 | 610 | 55 | M6 | |||
| Model and Specification | Rated Input | Rated Output | Accuracy Class | Dimensions (mm) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | K | F | C | D | E | G | ||||
| CTYF-1125 | 0~1A | 0~1V (0.5mA) | 0.1 0.2 0.5 1.0 | 158 | 92 | 110 | 25 | 47 | 139 | 63 | M6 |
| CTYF-1535 | 198 | 102 | 150 | 35 | 47 | 147 | 63 | M6 | |||
| CTYF-2135 | 275 | 118 | 210 | 35 | 47 | 230 | 63 | M6 | |||
| CTYF-2545 | 315 | 128 | 250 | 45 | 47 | 268 | 63 | M6 | |||
| CTYF-2940 | 350 | 119 | 290 | 40 | 47 | 310 | 55 | M6 | |||
| CTYF-3440 | 400 | 119 | 340 | 40 | 47 | 360 | 55 | M6 | |||
| CTYF-3940 | 450 | 119 | 390 | 40 | 47 | 410 | 55 | M6 | |||
| CTYF-4440 | 500 | 119 | 440 | 40 | 47 | 460 | 55 | M6 | |||
| CTYF-4940 | 550 | 119 | 490 | 40 | 47 | 510 | 55 | M6 | |||
| CTYF-5440 | 600 | 119 | 540 | 40 | 47 | 560 | 55 | M6 | |||
| CTYF-5940 | 650 | 119 | 590 | 40 | 47 | 610 | 55 | M6 | |||
We are equipped with advanced automated inspection and calibration equipment, covering the full production process from raw materials to finished products. With stable production lines and efficient manufacturing capacity, we support both mass production and customized requirements. All products undergo 100% factory testing under the ISO 9001 quality management system.
We specialize in the development and manufacturing of current transformers, Rogowski coils, and integrator systems. With strong engineering support, stable production capacity, and strict quality control, we provide reliable solutions for global customers across power monitoring and industrial applications.
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
We proudly showcase our enterprise honors and management system certifications, reflecting our commitment to quality, reliability, and industry excellence. These certificates demonstrate our dedication to maintaining high standards in all aspects of our operations.
Explore detailed images of our equipment, showcasing the advanced technology, precision engineering, and robust build quality that support our high-performance operations. Each image is accompanied by informative descriptions to provide a comprehensive understanding of our machinery.
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Contact UsDiscover our Technology Department, R&D Center, and Material Testing facilities through detailed images. These showcase our commitment to innovation, rigorous research, and precise material analysis, ensuring the highest quality and reliability in every product we develop.
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
Read More »
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
Read More »
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
Read More »
A flexible Rogowski coil current sensor designed for accurate AC current measurement in large, irregular, or hard-to-access conductors. It features an openable structure for easy installation and is suitable for both temporary and long-term monitoring applications.
Read More »
About Us
Jiangyi Yucheng Electric, Jiangsu, China, makes current sensors and smart meters for global power and industrial applications, offering reliable, high-accuracy, standards-compliant solutions.
Contact Info
No.5 Tongxin Road, Qingyang Town，Jiangsu,China
