DASN series Low-Voltage Current Transformers: creating compact distribution systems for efficiency

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Update time : 2025-11-21 13:43:36

1. Product Overview

DASN Low-Voltage Current Transformer Drawing on the successful development experience of the DAS series,
HEYI launched a brand new member, the DASN series low-voltage current transformer. The product is designed to match modern molded case circuit breakers and also employs advanced electromagnetic induction technology and first-class materials to ensure excellent performance even in complicated working conditions. It covers a wide current range from 60A to 1600A and comes with transparent terminal covers for easier on-site observation and maintenance. By optimizing the design of the magnetic circuit and insulation structure, this product greatly improves measurement accuracy and stability and functions well in various low-voltage distribution scenarios.
Low-Voltage Current Transformer
2. Main Competitive Advantages of DASN Products

2.1 Integrated design saves space and reduces cost;


The DASN series low-voltage current transformers adopt an innovative plate installation structure, and the dimensions of its structure can be precisely calculated to achieve perfect matching with mainstream MCCBs. This equipment is designed to be relatively compact in physical structure, saving more than 40% of installation space compared with traditional transformers. The modular design will also be very unique, which could shorten the installation time by over 50%. The wiring solution of this low-voltage current transformer is flexible, which could bring about effective reductions in cable loss and material costs for customers, thus creating huge economic benefits.


2.2 Electrical performance of DASN is excellent to ensure safety and reliability of the system.


The DASN series products have obtained several international standard certifications such as IEC60044-1, EN60044-1, VDE0414-44-1, GB1208-2006, etc. The product is made of high-quality silicon steel sheets and special insulation materials. With a withstand voltage of AC 3kV/1min, its rated thermal current is up to 60In, and the dynamic current reaches 2.5lth. Its shell with V0 level flame retardancy effectively prevents flame spread in extreme situations, and when overload occurs, the accuracy limit factor FS 5 guarantees accurate measurement. This low-voltage current transformer has a wide applicable temperature: from -10 ℃ to 50 ℃, which can adapt well to various harsh environmental conditions.


2.3 Different DASN models to suit various application needs


The product series, which ranges from DASN240 to DASN250, contains more than twenty kinds of commonly used ratios. It covers 60/5-200/5 for general purposes in the DASN240 series; the DASN248 series covers middle current for 250/5-630/5; while the DASN250 series is specially optimized for large current at 600/5-1600/5. The secondary output of the low-voltage current transformer supports both 5A and 1A industrial standards, which can flexibly match all kinds of metering instruments and protection devices in multiple fields with excellent performance.

Low-Voltage Current TransformerLow-Voltage Current Transformer
3.
Technical Specifications of DASN Product

3.1 Key Technical Parameters


The DASN series low-voltage current transformer adopts several patented technologies, and the core technical parameters have been rigorously tested and verified: the rated frequency supports the 50/60Hz dual system; rated voltage AC 0.72kV meets international safety standards; overload capacity reaches 1.2In; and the working temperature ranges from -10 ℃ to 50 ℃, covering the vast majority of usage environments. The product has an accuracy level of 1.0, insulation resistance greater than 1000MΩ, and dielectric loss factor less than 0.5%. Under such excellent technical parameters, this low-voltage current transformer can maintain stability and reliability even when in long-term operation.


3.2 Selection of Full Model Type


We have established a scientific product selection system, which proposes, according to different application scenarios: DASN240 series for commercial building and light industrial use, up to several options such as 60/5 to 200/5; DASN242 series expands the current range while keeping compact size; DASN248 series follows structure reinforcement design, targeting industrial scenes from 250/5 to 630/5; DASN250 series has been specially optimized for large current applications from 600/5 to 1600/5. The complete product line of low-pressure current transformers guarantees that engineers will be able to select the most suitable type according to the specific needs of a project.


4.
Technical Services Support


Heyi Electric has been committed to researching, manufacturing, and selling all kinds of transformers for more than 20 years, boasting a complete technical service system. The engineering team of Heyi can offer professional technical support from product selection and installation guidance to fault diagnosis to ensure that customers get the best user experience. The company strictly follows the ISO9001 quality management system, ensuring each product undergoes several processes of testing and offering comprehensive product traceability service. In addition, for key customers, we can also do some customization to ensure that this low-voltage current transformer fits in perfectly with specific application needs.


5
. Conclusion


The DASN series of low-voltage current transformers integrates innovative design, excellent performance, and reliable quality. It is the crystallization of technical accumulation and market insight over many years at
HEYI. With its compact structural design, wide model selection, and stable electrical characteristics, it has been extensively applied in smart grid construction, industrial automation upgrade, new energy generation, and other fields, enjoying a good reputation. Choosing the DASN series of low-voltage current transformers means selecting not only a high-quality product but also a trustworthy technological partner. We will continue to innovate, promoting better quality products and services for our customers, while jointly advancing the course of low-voltage distribution techniques.

Compay: WENZHOU HEYI ELECTRICAL CO.,LTD

Brand: HEYI/ASCT

Contact: Bethy

E-mail: heyi@heyiele.com

Tel: 86-13968747975

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