Small busbar model specifications

Small busbar systems typically range from 25A to 160A, with aluminum or copper conductors, IP20–IP55 protection, and modular configurations for easy installation and tap-off connections.

Current Ratings and Power Range

Small busbar models are designed for low-power distribution, generally covering 25A to 160A. For example, the LBplus system supports 25A–63A for lighting and energy distribution, while the LBplus DATA variant extends up to 160A for intelligent lighting and small/medium energy distribution applications . These systems are suitable for residential, commercial, and light industrial installations.

Conductor Materials

Busbars are typically made from aluminum or copper, depending on the current rating and application. Aluminum is commonly used for currents from 160A to 1000A, while copper is preferred for 250A–1000A, offering higher conductivity and compact design . For small busbars, both materials are available, with copper often used for higher efficiency in compact installations.

Protection and Safety

Small busbar systems feature IP20 to IP55 protection ratings, ensuring safety against dust and accidental contact. IP20 is standard for indoor low-power applications, while IP55 provides additional protection for environments with higher exposure to dust or moisture . Many systems also include finger-safe covers and modular tap-off adapters for enhanced operational safety .

Busbar Spacing and Poles

Standard busbar spacing for small systems is typically 60 mm, though 40 mm, 100 mm, and 185 mm spacings are also used depending on installation constraints . Small busbars are available in 3-pole or 4-pole configurations, with modular designs allowing easy connection of devices and tap-offs.

Installation and Modularity

Small busbar systems are designed for modular installation, including straight elements, elbows, feed units, and suspension supports . Tool-free mounting options are available in some systems, allowing quick assembly and maintenance . Tap-off units can be added without interrupting the main busbar, supporting flexible energy distribution.

Standards Compliance

These busbar systems comply with IEC EN 61439-6 and other international standards, ensuring safe operation, correct current carrying capacity, and short-circuit resistance . The permissible busbar temperature and short-circuit strength should be considered during design, based on current, conductor cross-section, and ambient conditions .

Summary

Small busbar models are ideal for low-power, modular energy distribution, offering flexibility, safety, and compliance with international standards. Key specifications include:

• Current range: 25A–160A
• Conductor materials: Aluminum or copper
• Protection: IP20–IP55
• Busbar spacing: 40–60 mm (standard), up to 185 mm
• Poles: 3 or 4
• Modular accessories: Tap-off units, elbows, feed units, suspension supports
• Standards: IEC EN 61439-6 compliance These features make small busbar systems suitable for lighting, small industrial loads, and intelligent energy distribution networks .