
GS device protection fuses
Properly protected in the smart grid and in industry
Optimally integrating renewable energy
Smart grids – the key to the energy transition and new demands on protection technology
The European energy transition and the target of achieving climate neutrality by 2050 pose enormous challenges for the electricity grid: rising demand for electricity, volatile power feed-in from renewable energy sources and new consumers such as electric vehicles and heat pumps. In addition to massive expansion of the grid, we need the smart grid to intelligently modernize the network.

Expertise at a glance
- Many years of experience and specialization in equipment protection – put your trust in our proven expertise.
- Comprehensive range for smart metering – response characteristics ranging from very fast-acting to slow-blow for every application.
- Personalized consultancy and engineering – customized solutions for every network architecture.
- High electrical reserves – breaking capacity of >50kA for maximum protection.
- Relevant standards and approvals – IEC, VDE and UL for international projects.
The role of the smart grid in grid expansion
A smart grid is a digitalized electricity network that collects and processes information in real time. Measurement, control and communication technology enables a dynamic balance between generation, consumption and storage. This allows renewable energy sources to be integrated effectively, storage facilities to be utilized and conventional reserves to be added as needed, thereby avoiding bottlenecks.
- Integration of renewable energy
Smart grids balance out fluctuations and ensure the efficient feed-in of wind and solar power. - Load management
Flexible consumers are controlled to reduce peak loads and prevent grid overloads. - Transparency and automation
Real-time data enhances security of supply and facilitates fault diagnosis.
Why fuse-links remain essential in the smart grid
Even in a digitalized network, standard protective devices such as high- and low-voltage fuse-links remain essential. However, their role is changing: With the proliferation of digital components, the need for device protection solutions is also expanding.
Industries & applications
Generation & storage
- Photovoltaics
- Wind power
- Battery storage (ESS)
- Turbine / marine engineering
Energy distribution & infrastructure
- Building services engineering
- Rail / traction
- UPS & data centers
- Electrical equipment / OEM
Industry & manufacturing
- Mechanical engineering
- Automation / robotics
- Mining
Mobility
- Automotive / E-mobility
Working with you as a partner
SIBA supports equipment manufacturers, energy suppliers, electrical contractors and industrial companies in the selection, design and documentation of protection solutions. Our aim remains the same: to provide the best possible technical, sustainable and cost-effective protection for your electrical systems and your entire measurement infrastructure.
Insights & inspiration
How do I secure smart meters, communication gateways and their installation environment, as well as the users?
These installations are often located in the pre-meter area where high short circuit currents are possible.
High short circuit currents can occur in the connection points of building installations, and in this context, breaking capacities of 25kA and above are often required. Protective devices must therefore meet the relevant test criteria. SIBA-miniature fuse-links enable consistently safe disconnections through the use of robust, high-quality components. In addition, SIBA offers a range of cylindrical fuse-links and THT solutions with test voltages of up to 500V and breaking capacity of up to 80kA for use in pre-metering applications.
The result:
Effective protection of metering and communication technology, stable networks and reduced consequential damage.
Smart meter gateways and BPL modules contain sensitive, highly integrated electronics that can be damaged even by low overcurrent surges. This is particularly critical when communication modules are installed in the pre-metering area, as there is often no additional circuit-specific protection in place there. To ensure safe and stable operation, these components must therefore be reliably protected against overcurrent and, at the same time, be robust enough to withstand typical switching operations without failure. For users, this means maximum operational reliability, reduced risk of downtime and long-term, trouble-free operation of the smart grid infrastructure.

High-quality equipment protection fuses ensure reliable operation in modern energy infrastructures
Space is at a premium in meter panels. Miniature fuse-links are available in compact designs (e.g. 6.3×32mm, 5×22.7mm, SMD block 4.5×16mm) and can be integrated using holders and clips in a way that allows them to be sealed and operated by non-specialists. For retrofit projects, there are modular solutions for cable distribution cabinets, whose compact enclosures are ideal for housing miniature fuse-links.
The result:
Easy integration, lower capital expenditure, quick retrofitting without the need for complete replacement.
Space is at a premium in meter panels. Miniature fuse-links are available in compact designs (e.g. 6.3×32mm, 5×22.7mm, SMD block 4.5×16mm) and can be integrated using holders and clips in a way that allows them to be sealed and operated by non-specialists. For retrofit projects, there are modular solutions for cable distribution cabinets, whose compact enclosures are ideal for housing miniature fuse-links.
The result:
Easy integration, lower capital expenditure, quick retrofitting without the need for complete replacement.
Tip from the experts
Miniature fuse-links for pre-metering applications
In the pre-metering section of a smart grid, short circuit currents of up to 25kA can occur – a huge challenge for any protective component. SIBA miniature fuse-links are designed to meet these requirements and feature:
Fuses
Comprehensive protection with SIBA fuse-links.
Fuses
The right choice makes all the difference
In complex metering systems, an intelligently thought-out protection strategy is paramount to ensuring availability and safety. Correctly determining the rated current based on the performance data of our miniature fuse-links prevents unnecessary downtime and ensures maintenance-friendly solutions.
The right fuse-link – we’re here to help
Our application specialists can advise you on product selection, specification and compliance with standards.



