Distribution systems
GDA 63-2500 A
Graziadio GDA busbar trunking systems, available with either aluminum or copper conductors, range from 63 A to 2500 A. They are ideal for use in factories, industrial plants, and many other sectors where tap-off outlets are required, or where flexibility is needed to relocate machinery without incurring additional installation costs.
They are fast and easy to install compared to traditional cable systems. Furthermore, GDA lines can be installed vertically: the busbars are routed through floors, with tap-off units provided at each level to feed the distribution boards.
The range of tap-off boxes offers ratings from 32 A to 1250 A.
Technical Features
- Single-bolt joint
- Configurations: 4P+PE; 5P+PE
- Option for Neutral section up to 200% of the phase
- Element length: 4 m and any length to measure
- Distance between tap-off points: 1 m / 0.5 m / 0.25 m
- Simultaneous use of tap-off outlets on both sides
- Tap-off boxes: from 32 to 1250 A (lightweight, robust, and stylish design)
- Protection degree: up to IP55
- No accessible live parts
- Advantages:
Corrosion resistance
Fast and easy assembly
High thermal dissipation
Lightweight
Reusable and recyclable
High heat dissipation, allowing installation in environments with poor air circulation
Installations
Product Details
- 63 – 2500 A
- Conductors: aluminum or 99.9% ETP copper
- Housing: 100% aluminum
- Complies with standards: IEC 61439/1-6; IEC EN 60529

Main Applications
- Industrial environments
- Sports arenas
- Workshops
- School workshops
- Hypermarkets
- Office buildings (vertical lifts)
- Naval
- Conference centers
- Stadiums
- Garages
- Data center
- Logistics centers
- Shopping malls
- Department stores
- Residence for the elderly
- Tertiary
- Hospital facilities
- University
The complete Graziadio & C. busbar range
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J SERIES 63-100-160 A
J-Series low power busbar trunking systems (63-160 A) by Graziadio: compact aluminum design and plug-in connection for versatile, lightweight, and efficient electrical distribution across all sectors.
K SERIES 800-5000 A
Graziadio K-Series (800-5000 A) busbar trunking systems for power transport and distribution: a compact system with high thermal dissipation, ideal for large industrial plants, commercial buildings, and data centers.
ISOLSBARRA 630-6300 A
ISOLSBARRA (630-6300 A) Graziadio busbar trunking for power transport: high protection (up to IP68) and versatility for indoor and outdoor use in industrial, chemical, and marine installations.
MULTICONDUCTOR 50-300 A
MULTICONDUCTOR trolley busbar systems (50-300 A) Graziadio: a flexible system with continuous conductors for high travel speeds, ideal for overhead cranes, automated warehouses, and curved lines.
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Graziadio GDA industrial distribution busbar trunking (63-2500 A): flexibility, easy assembly, and high heat dissipation for factories, offices, and shopping centers.
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PRODUCTOR trolley conductor rails (50-400 A) by Graziadio: a high-speed, low-maintenance solution, ideal for powering automated warehouses, shuttles, and storage systems.
Spare parts for other busbar ranges
Spare parts for discontinued Graziadio busbar trunking systems: professional assistance and selected components for GPD, Isolsbarra Distribuzione and Isoltrolley lines to ensure your systems' operational continuity.

















