With the increasing popularity of smart grids and refined energy management, low-voltage current transformers have become key components of power systems, and their performance and adaptability can directly affect the stability and efficient operation of the entire system. The SFCT series low-voltage current transformers are designed specifically for integration into switch fuses, isolation switches, and low-voltage distribution cabinets. This series of products has high measurement accuracy, compact structure, and easy installation. These characteristics make it a core component of modern power distribution solutions.
1. Accurate measurement provides reliable basis for system decision-making
Accurate measurement is the foundation for achieving effective energy management. The SFCT series low-voltage current transformers perform excellently in this regard.

1.1 Equipped with dual precision levels, suitable for various application scenarios
The SFCT series offers two accuracy levels, 0.5 and 1. A higher accuracy of 0.5 level is suitable for strict requirements such as commercial billing. Level 1 accuracy can meet the requirements of load monitoring and protection applications. Users can flexibly choose according to their actual needs to achieve more economical configurations.
1.2 Wide range current ratio covering mainstream application requirements
The current ratio range of this series is from 100/1A to 1000/5A. Multiple standard ratios can adapt to various load conditions. Its output signal is stable and accurate, providing reliable data support for feeder monitoring, load balancing, and system automation functions.
2. Innovative design overcomes the challenges of compact space installation
The internal space of modern distribution cabinets is very limited. The design concept of the SFCT series stems from a deep understanding of actual installation requirements.

2.1 Adopting an ultra-thin window structure for easy installation
This series adopts an innovative window design. The transformer can be directly mounted on the busbar or insulated cable. This design does not require significant modifications to the existing switch isolation switch housing. The installation process is significantly simplified as a result.
2.2 Native Embedded Design, Optimized for SL1... 3 Series
SFCT can be perfectly integrated into SL1... 3 series strip isolation switches. Truly seamless integration has been achieved. Its slim appearance is specifically optimized for narrow cabinet spaces. This effectively solves the problem of traditional transformers occupying too much space.
3. Excellent performance ensures long-term stable operation
Excellent products not only require smooth installation, but also long-lasting reliability. The SFCT series demonstrates excellent quality in this regard.
3.1 Has excellent load stability
Even in the case of load fluctuations or frequent switching, SFCT can still maintain high stability of signal output. This effectively avoids system misjudgment caused by signal jumps.
3.2 Has a wide range of application adaptability
The SFCT series is an ideal choice for various scenarios. It is suitable for equipment such as distribution feeder columns and utility service cabinets. Its stable performance perfectly supports billing, monitoring, and automation systems. This product is a reliable choice for building intelligent distribution networks.

4. Summary of Core Advantages
The SFCT series brings you efficient, reliable, and space saving solutions. This product has multiple core advantages.
In terms of measurement, it offers two precision options of 0.5 and 1, providing reliable data support for energy management and system protection.
In terms of structural design, the ultra-thin shape is optimized for compact cabinets, significantly saving installation space.
The installation process is also simple, and the ready to use feature greatly reduces installation time and related costs.
This series also has excellent operational stability, maintaining long-term reliable performance even under complex operating conditions.
SFCT low-voltage current transformers are an ideal choice for meeting various demanding application requirements.
5. Conclusion
We focus on the manufacturing of transformers and always adhere to creating value for customers through technological innovation. The SFCT series low-voltage current transformers embody our professional experience in structural design and performance optimization. This product can help you effectively cope with various challenges in the current distribution system and is a reliable choice for achieving intelligent distribution management.
Compay: WENZHOU HEYI ELECTRICAL CO.,LTD
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com
Tel: 86-13968747975