Zillion SFS
Smart fuse switch | upper solution

The SFS – Top-Mounted Smart Fuse Switch is an integrated solution that combines protection, sensing and advanced electrical monitoring directly at the feeder level within the low-voltage switchboard. Its top-mounted design enables electrical measurement to be integrated into switchboards where space is limited, without adding external equipment or unnecessary complexity.

The SFS natively integrates the Advanced Line Supervisor and the Advanced Supervision Board (TSA), incorporating current transformers and voltage measurement points directly into the fuse switch unit. As a result, conventional NH fuse protection is transformed into an intelligent asset capable of generating reliable and consistent electrical data.

In addition, the compact top-mounted design facilitates integration into both existing and new switchboards while maintaining a clean and secure architecture. The SFS also allows electronic boards to be replaced while energised, without interrupting the power supply, improving operational continuity.

As part of the Zillion ecosystem, the top-mounted SFS provides a solid foundation for advanced network monitoring, diagnostics and operation, ensuring data consistency directly from the protection point.

<b><span>Zillion</span> SFS</b><br> Smart fuse switch | upper solution-0

<b><span>Zillion</span> SFS</b><br> Smart fuse switch | upper solution-1

Value proposition

Protection and monitoring in a single fuse switch unit. The SFS combines NH fuse protection, electrical signal acquisition and advanced monitoring within a single smart fuse switch.
Compact design for space-constrained switchboards. The top-mounted configuration is specifically designed for low-voltage switchboards where available space is limited, without compromising measurement or monitoring capabilities.
Native electrical measurement at the protection point. Current and voltage measurements are acquired directly within the fuse switch unit, ensuring data accuracy and consistency from the source.
Operational continuity and ease of maintenance. The replacement of electronic boards while energised allows maintenance and upgrade tasks to be carried out without interrupting the power supply.

Main use case

Advanced electrical monitoring in low-voltage distribution boards where space is limited and a compact, integrated solution combining protection and native monitoring at the feeder level is required. The top-mounted SFS is ideal for both new distribution boards and retrofit projects where optimising available space is a key requirement.

What does the SFS monitor?

Line and phase currents measured through integrated current transformers.

Voltage measurements captured at the protection point.

Three-phase electrical parameters processed by the TSA.

Key information to support network operation, diagnostics and maintenance.

Integration within the Zillion ecosystem

The top-mounted SFS provides integrated monitoring from the point of protection, enabling protection and electrical monitoring to coexist within a single fuse base. This ensures that all measured data is seamlessly integrated with the rest of the Zillion ecosystem, delivering a consistent and unified view of the low-voltage network.