Small busbar trunking systems provide a modular, safe, and flexible solution for low-voltage power distribution integrated with switchgear.

Overview

Small busbar trunking systems are compact, prefabricated electrical distribution systems designed to transport and distribute low-voltage power efficiently. They are typically used in industrial, commercial, and data center environments where flexibility, safety, and ease of installation are critical . These systems integrate seamlessly with low-voltage switchgear to provide controlled and protected power distribution.

Key Features

• Current Ratings: Small busbar trunking systems generally cover ratings from 40 A to 160 A, suitable for workshops, small offices, or light industrial loads . Tap-off units are available with rated currents from 16 A to 63 A, allowing localized power extraction.
• Modularity: The systems are modular, enabling easy extension, repositioning, or upgrading of power distribution without major rewiring . This is particularly useful in dynamic environments like data centers or manufacturing floors.
• Safety: Designed according to international standards such as BS EN 61439-6 and IEC 60439, these systems provide protection against short circuits, arcing faults, and ensure personnel safety .
• Installation Flexibility: Busbar trunking can be installed horizontally, vertically, or in combination, and allows multiple tap-off points along the run, reducing the need for extensive cabling .
• Integration with Switchgear: Small busbar trunking systems complement low-voltage switchgear, enabling controlled distribution from main panels to sub-distribution points. This integration ensures overcurrent protection, monitoring, and operational safety .

Advantages Over Traditional Cabling

• Reduced Installation Time: Prefabricated trunking requires fewer fixings and less labor compared to multiple cable runs .
• Flexibility: Tap-off units can be relocated or added as power requirements change, without major modifications .
• Space Efficiency: Compact design reduces the footprint of electrical distribution systems.
• Energy Management: Some systems support communication-capable components for monitoring and optimizing power flows .

Typical Applications

• Workshops and Small Industrial Facilities: Supplying power to machinery and lighting with tap-off flexibility .
• Commercial Buildings: Rising mains to distribute power to each floor or office area .
• Data Centers: Overhead busbar trunking provides accessible power to server racks, allowing easy reconfiguration and maintenance .
• EV Charging Infrastructure: Modular busbar systems can supply multiple charging points efficiently .

Conclusion

Small busbar trunking systems, when combined with low-voltage switchgear, offer a safe, modular, and efficient solution for distributing power in environments where flexibility and reliability are essential. They reduce installation complexity, allow easy expansion, and comply with international safety standards, making them ideal for modern industrial, commercial, and data center applications .