

In industrial and commercial electrical systems, modularity is no longer a “nice to have,” but a fundamental requirement to meet the growing demands for flexibility, rapid installation, simplified maintenance, and scalability. For those who design, install, or manage electrical systems, and even for those approaching the field for the first time, it becomes crucial to rely on solutions that are pre-engineered , efficient , and intelligent during the design phase.
The range of busbar trunking systems produced by Graziadio & C. , from 25 to 6,300 A, represents a consolidated “Made in Italy” reality for the transmission and distribution of electrical energy.
To support designers and technicians in their layout and design activities, Graziadio has developed BlindoCad , a modern software integrated into AutoCAD (and compatible with other CAD programs) that allows for 2D and 3D modelling of busbar trunking systems, composing straights, bends, end caps, junction boxes, and accessories, and automatically generating the bill of materials (BoM).
This article aims to guide even those who are not very familiar with busbar systems or specialized CAD software: you will discover why designing modular systems is advantageous, how to approach the design with BlindoCad , and what are the concrete benefits that derive from it for designers, installers and end customers.
A modular electrical system is based on the logic of standardized, prefabricated, or semi-prefabricated components, which allow for rapid assembly, easy future modifications, and efficient maintenance. Why does all this matter?
In the case of Graziadio busbar trunking, these features are emphasized: in fact, the documentation highlights how the systems are designed for quick assembly, “plug & play” installation, high degree of protection up to IP 68 (for some ranges) and the possibility of revision and reuse even after decades.
Typical design challenges (complex spaces, high power management, coordination between power supply/distribution, safety regulations) find a concrete answer in modular solutions.
BlindoCad is a strategic tool in the design workflow: it allows you to transform ideas and diagrams into executive technical layouts, connecting directly to the Graziadio busbar trunking system.
These elements make BlindoCad not just a drawing software, but an integrated design engine that enhances modularity, reduces errors and simplifies the transition from design to installation.
Below is a general flow (customizable for each project) that guides from definition to execution, using BlindoCad and integrating the modularity of the busbar trunking.
Phase 1 BlindoCad: Definition of specificationsFor designers, installers and end customers, adopting a modular approach supported by BlindoCad and Graziadio busbar systems brings concrete advantages:
To make the most of BlindoCad and the modularity of the busbar trunking, here are some useful tips:

Designing a modular electrical system using dedicated software like BlindoCad and integrating Graziadio busbar trunking systems offers a significant competitive advantage today. For those new to the subject, it represents a guided entry into the world of modularity; for the experienced designer, it is a tool that simplifies and speeds up the work.
We invite you to book a call with Graziadio’s technical team today for direct support. Take advantage of the combination of intelligent design and prefabricated Made in Italy products to build modular, efficient, scalable electrical systems that are ready for future needs.
When powering one of the world’s most advanced supercomputers, reliability and performance are non-negotiable. That’s why the Leonardo Data Centre, hosted in the Bologna Technology Park and managed by Cineca, chose Graziadio’s GDA Busbar Trunking System.
GDA is a busbar trunking system designed for electrical current distribution, ranging from 63 to 2500 A. It’s engineered to outperform traditional cabling solutions, especially in environments that demand scalability, flexibility, and robust protection.
GDA can be installed horizontally or vertically, making it ideal for complex infrastructure layouts. Its monoblock joints allow for quick assembly, saving time and reducing installation costs.
With a protection level of up to IP55, GDA is suitable for humid environments and offers resistance against dust and solid particles, ensuring long-term reliability even in challenging conditions.
Need to scale up? GDA makes it simple. Tap-off boxes (ranging from 32 to 1250 A) can be added to either side of the trunking system. They’re lightweight yet durable, enabling low-cost expansion without disrupting existing infrastructure.
Thanks to its aluminium casing, GDA resists corrosion and short circuits. It also provides high heat dissipation, making it suitable for environments with limited air circulation.
If you want to find out more about how we were involved in this fantastic project, read the full case study here

Sustainability in the industrial world is no longer just an ethical principle, but a competitive lever . Today, companies are faced with designing electrical systems that ensure production continuity, reduced consumption, and adaptability over time. In this scenario, the busbar trunking system (bus duct) is not simply a technical solution for energy distribution: It is a strategic asset that contributes to the construction of more responsible, long-lasting infrastructures that are ready for the evolution of production processes.
Sustainability, in fact, is not expressed only through immediate energy savings, but through a system’s ability to maintain constant performance over the long term , with fewer interventions, less material waste and greater operational efficiency.
Busbar trunking is a prefabricated system that uses conductive busbars protected by a metal casing.
It was created to guarantee:
But beyond the technical advantages, what sets it apart is its consistency with a vision of a system that must last over time.
From an industrial sustainability perspective, it’s not just the initial cost that matters.
What matters is the plant’s useful life and its ability to:
Busbar trunking was created precisely for this type of logic.
Any interruption in the electrical distribution generates:
The robustness of busbar trunking drastically reduces the probability of unplanned failures, making a concrete contribution to the economic and environmental sustainability of the production site.
The controlled geometry of the conductors and the reduction of electrical resistance along the path contribute to:
This is not a one-time saving, but a benefit that accumulates every day , throughout the life of the system.

Industrial production is evolving: lines are expanding, loads are changing, areas are being repurposed.
A sustainable plant is one that can grow without demolishing , replacing, or throwing away.
The barrier allows:
It is a system created to accompany the company’s development , not to constrain it.
The ability to easily inspect and verify joints enables predictive, rather than corrective, maintenance.
Fewer emergencies = less waste = greater sustainability.
Data centres , hospitals, transportation, and large-scale logistics: contexts where electrical continuity is a mission , not an option.
Here, busbar trunking ensures long-term resilience and stability.

In sectors where energy represents a strategic cost item, such as:
Sustainability isn’t just about reducing immediate consumption.
It’s:
Sustainability becomes a competitive advantage when:
Busbar fits perfectly into this logic.
Busbar trunking isn’t simply a technical choice. It’s a strategic
decision , consistent with an industry that aims to:
The solutions developed by Graziadio & C. are born with this vision: to guarantee modular, safe, and high-performance systems, designed to support today’s industrial plants and prepare them for tomorrow’s evolutions.
To help you determine the best solution for your facility’s needs, our technical team is available for a personalized consultation.

In large commercial spaces, efficiency and flexibility are essential.
Our busbar systems guarantee:
– Secure deployment
– Modularity for future growth
– Easy installation and maintenance.


Every time electricity passes through a conductor, some of the energy is transformed into heat: this is the so-called Joule effect . This is an inevitable phenomenon, but it has concrete consequences for electrical systems: wasted energy, stressed components, higher costs, and a greater risk of failure .
Reducing Joule losses means improving energy efficiency and ensuring safer and more sustainable systems. Busbar trunking , thanks to its innovative structure, is the ideal solution for those seeking a high-performance, reliable electrical distribution system that meets modern energy challenges.
The Joule effect is directly related to the resistance of conductors . In traditional cable systems, the paths are often long, twisted, and disordered. This increases resistance and, consequently, the amount of energy converted into heat.
The result?
In an industrial or infrastructure context, these inefficiencies translate into significant economic costs and risks to business continuity.
Learn more about how Graziadio guarantees maximum safety in its systems in the Certifications section.
The busbar trunking is designed to minimize electrical resistance and therefore reduce Joule losses.
Thanks to the flat copper or aluminium conductors , enclosed in a metal casing, the current flows along straight and orderly paths , drastically reducing the amount of energy lost as heat.
This configuration guarantees:
Discover the full range of Graziadio Busbar Conduits

A busbar system maximizes available energy. The lower resistance of flat conductors limits Joule losses , reducing waste and making distribution more efficient.
Less energy loss translates into lower consumption and real savings. For energy-intensive businesses and infrastructures, busbar trunking represents an investment that guarantees tangible and long-lasting savings .
Excess heat is a major cause of failures and fires. By limiting Joule losses, busbar trunking ensures more stable, reliable, and safe systems.
Reducing thermal stress means preserving component life, reducing maintenance and ensuring more resilient systems in the long term.
A system that limits Joule losses and wastes less energy contributes to reducing CO₂ emissions. Busbar trunking is therefore a technical and ethical choice, in line with sustainability objectives.

Busbar trunking isn’t just an alternative to cables, but a more advanced system . In traditional cables, long lengths and twists create resistance and increase Joule losses.
Busbar trunking, on the other hand, is compact, tidy, and efficient. It reduces resistance, simplifies installation, and ensures safer, more sustainable, and future-proof power distribution .
The busbar trunking is ideal in all contexts where efficiency and safety are priorities:
Read also: Busbar trunking for data centers: modular and reliable solutions for power continuity

The Joule effect is inevitable, but it can be contained and transformed into an advantage . Busbar trunking is the answer: it reduces Joule losses, improves energy efficiency, increases system safety, and contributes to environmental sustainability.
Choosing a busbar trunking means investing in reliability, savings and innovation .
Want to make your systems more efficient? Explore the Graziadio Busbar Trunking range and contact our team for a personalized consultation.
Thanks to Mirko Cavatore Ercole, Research and Development Manager at Graziadio, for his valuable technical contribution to this article.

Cleanliness, safety and continuity: in the food industry, every detail counts.
Our systems are ideal for environments with high hygiene standards, thanks to IP66 protections and resistant materials.

The choice of busbar trunking directly impacts the safety, continuity of service, and total cost of ownership (TCO) of a system. A properly sized and certified system reduces unplanned downtime, simplifies future expansions, and maintains stable power distribution under all operating conditions.
In this article, we analyze the 5 most common mistakes made when selecting and designing a busbar trunking system , with practical suggestions for avoiding them and concrete examples of Graziadio lines that help prevent any critical issues.
In many industrial plants, manufacturing plants, logistics facilities, data centers, hospitals, and airports, busbar trunking is the backbone of distribution: it connects electrical panels, powers backbones and process lines, and delivers energy safely and orderly to where it’s needed.
Compared to traditional cables it offers significant advantages:
Precisely because it is the heart of the system, errors in the selection or sizing phase can cause overheating, voltage drops, maintenance difficulties and non-compliance with regulations.
Often the busbar trunking is chosen “flush” with the current absorption, neglecting:
Overheating, insulation degradation, reduced service life, and abnormal voltage drops.

Underestimating the IP rating or corrosion resistance can lead to failure and premature degradation.
A busbar trunking may be suitable for the rated current but not sufficiently certified to withstand the stresses of a short circuit.

“Closed” systems without provision for branches or expansions require complex and costly interventions.
A cheap product without adequate certifications can lead to hidden costs and operational risks.

It means having a safe, continuous, and sustainable electrical distribution over time. Graziadio offers a full range of solutions, from light distribution to high-current backbones and medium voltage, with technical support at every stage.
Discover the entire Graziadio range and request a consultation for your system.

Graziadio supplied the Peroni Brewery in Padua with Isolsbarra 2000 A , complete with aluminum conductors, for the transformer-panel connection lines. The Carlsberg Italia brewery in Lainate (MI) also received Multiconductor, a conduit for moving lines.

Business continuity, absolute safety, certified reliability: in healthcare contexts, every detail makes the difference.
Our IP66 and IP68 busbars meet the needs of hospitals and healthcare facilities with safe, modular and quiet solutions.
Explore the Isolsbarra range here