The choice of the most suitable busbar trunking system for an electrical installation is a fundamental step in ensuring safety, operational continuity, and consistent performance over time. Each type of busbar features different construction and performance characteristics, making it more or less suitable for specific application contexts.
“Among the solutions offered by Graziadio, ISOLSBARRA and the K Series represent two systems based on different technologies: one fully insulated with fiberglass or PVC, the other designed with a sandwich architecture to maximize compactness and thermal dissipation.
This guide provides a clear and structured comparison of the two systems, helping designers and installers identify the solution best suited to their needs.
Overview of the Two Systems
ISOLSBARRA
ISOLSBARRA is a busbar trunking system fully insulated with fiberglass or PVC, designed to ensure high dielectric strength and maximum protection against external agents such as dust, moisture, and contaminants. The phases totally insulate the busbars without discontinuity, ensuring constant protection along the entire route with a protection degree of IP66 or IP68.
Established features:
- Body fully encapsulated in fiberglass or PVC.
- High protection against infiltration and deposits.
- Superior mechanical and environmental resistance.
- Reduction of risks related to moisture and dust.
- Ideal for applications with critical or particularly severe environmental conditions.
K Series
The K Series is a busbar trunking system with a sandwich architecture, designed to offer high compactness, excellent heat dissipation, and great installation versatility. The modular structure allows for fast installation and efficient space management.
Established features:
- Sandwich structure that optimizes thermal dissipation.
- Extremely compact layout.
- Simple and fast installation thanks to modularity.
- Easier maintenance.
- Versatile solution for industrial and infrastructural applications under standard environmental conditions.
Main Construction Differences
Insulation Technology
- ISOLSBARRA: total insulation through the entire lenght.
- K Series: insulation achieved through separators and dielectric materials in a sandwich configuration.
Protection Against External Agents
- ISOLSBARRA: provides a continuous barrier against moisture, dust, and contaminants.
- K Series: designed for industrial and infrastructural environments with standard or controlled conditions.
Thermal Management
- ISOLSBARRA: the heat dissipation is very high.
- K Series: the sandwich configuration and compact structure promote more efficient thermal dissipation.
Ideal Application Areas
When to Choose ISOLSBARRA
The system is recommended when the operating environment requires:
- The highest level of system protection,
- Resistance to moisture, dust, and contaminating agents,
- Reliability even under difficult or changing conditions,
- High dielectric strength.
It is suitable for all contexts where service continuity is a priority and the installation may be exposed to environmental risks.
When to Choose the K Series
The K Series is recommended when the following are priorities:
- Compact installation,
- Thermal efficiency,
- Modularity,
- Electrical system versatility.
It is ideal for general industrial applications, infrastructures, and installations where extreme environmental conditions are not present.
Comparative Advantages
Advantages of ISOLSBARRA
- Superior level of protection, thanks to fiberglass (class H 180°C) or PVC
- Greater safety against infiltration and contamination.
- Stable performance in harsh environments.
- High mechanical robustness.
Advantages of the K Series
- Compact structure that optimizes space.
- Excellent thermal dissipation.
- Simple and modular installation.
- Adaptability to many application contexts.
- Optimal balance between performance, flexibility, and dimensions.
How to choose the most suitable system
The choice between ISOLSBARRA and the K Series mainly depends on three technical factors:
1. Operating Environment
- Critical or severe conditions → ISOLSBARRA
- Standard or infrastructural environments → K Series
2. Required level of protection
- Maximum protection and operational continuity → ISOLSBARRA
- Balance between protection, compactness, and efficiency → K Series
3. Design priorities
- Compactness → K Series
- Total barrier and complete insulation → ISOLSBARRA
“Why Rely on Graziadio
Regardless of the system chosen, both busbar trunking systems are designed according to the same principles that have always defined Graziadio:
- Focus on safety,
- Certified construction quality,
- Long operational lifespan,
- Qualified technical support,
- Made in Italy design and production.
Graziadio supports designers and installers at every stage: system definition, component selection, configuration, and dedicated technical support.
ISOLSBARRA and the K Series represent two different solutions for different design requirements. The former ensures maximum protection and reliability in harsh environments; the latter offers compactness, versatility, and optimal thermal management. Properly analyzing application conditions is the first step in choosing the most suitable busbar trunking system and ensuring high performance over time.
For a complete evaluation of the most suitable solution, it is always recommended to contact the Graziadio technical department for a dedicated analysis.
