MORNSUN relies on innovation in core materials and structural design, and on a highly automated manufacturing process, which makes this series of products have better performance and reliability, along with a better price and greater compatibility.
Advantages
1. Excellent performance
Accuracy: Round shape up to 0.5%; square shape up to 0.3%.
Accuracy at room temperature (Typ.): <0.15% (conventional solution on the market <0.3%).
Relatively high measurement accuracy across the entire bandwidth. A data table is shown below:

2. Wide compatibility.
Wide operating temperature range and adaptation to harsh environments: -40 to +85℃.
Compact size: 68 x 57 x 20mm.
Wide supply voltage range: ±12/15VDC.

3. High-quality raw materials, intelligent design.
The magnetic core is made of high-permeability, low-coercivity materials, giving the transducer a faster response and greater sensitivity.
The product features a snap-fit design that simplifies assembly and reduces manufacturing costs, as well as an aesthetically pleasing geometric design that makes it more stable and attractive.

4. Automated, more cost-effective production
The configured manufacturing process is highly automated, from assembly and welding to final assembly, effectively ensuring product quality and improving efficiency, while reducing manufacturing costs and making products more cost-effective and with a lower defect rate.
Applications
This series is suitable for industrial-level current sensing applications that have higher requirements for accuracy, linearity, and temperature drift, such as welding power supplies, power equipment, energy heating equipment, large UPS equipment, motor drive equipment, etc.
The round or square type of Hall closed-loop current transducer is available; you can choose according to the actual installation environment and the available space.
(Square: 68x57x20mm, Round: 68x57.7x20mm; If the installation space is small, we recommend considering the round type.)
(*After using the current transducer for AC/DC pulse and feedback detection, in most cases, the above applications can improve weld quality, increase efficiency, and reduce costs.)
Features:
Measures AC, DC, or pulse currents.
Wide operating temperature range: -40℃ to +85℃.
Exceptional accuracy and linearity.
(Round: Accuracy up to 0.5%, Linearity up to 0.1%; Square: Accuracy up to 0.3%, Linearity up to 0.05%).
Low-temperature drift 20ppm/℃ (typ).
Wide frequency bandwidth (DC-100KHz).
High immunity to external interference.
Improved weld quality: High-precision dynamic feedback for current adjustment, making the welding process more reliable and the weld surface more aesthetically pleasing.
Improved efficiency and reduced costs: Increased production by extending electrode life.
Selection guide

Test Instructions:
1. IP is the measured current, IS is the measured current, C=100μF;
2. RM is the measured resistance, adjusted according to the required voltage range of the output circuit;
3. By measuring the test current IS flowing through RM, or the voltage UR across RM, the primary current IP can be obtained:
IP = KN * IS = KN * (UR / RM).
It is recommended to use the MORNSUN WRA-3WR2/WRB-3WR2 power supply (from MORNSUN) with an output power of 3W and an output voltage of ±15V. Please choose according to the actual application or contact the Mornsun FAE team.
* For detailed information, please refer to the corresponding datasheet on the Mornsun website; the product information presented is for reference only.
