Equipotential Rail B for Earthing, Asus AHK1309 — up to 30 × 4 mm conductor

Equipotential Rail B for Earthing by Asus (model AHK1309) is a grounding busbar engineered for connecting multiple conductors with cross-sections up to 30 × 4 mm. It provides a stable common point for equipotential bonding in electrical installations, server rooms, telecommunication racks and other systems where a consolidated earth connection improves safety and electromagnetic compatibility. The product is intended to simplify cable termination and organise grounding layouts while ensuring a reliable conductive path to the earthing system.

Advantages

The equipotential rail offers a compact and durable metal busbar capable of accepting several large conductors, reducing the need for multiple separate earth points. Its design enables orderly cable routing and straightforward termination, which can save time during installation and maintenance. By centralising grounding connections the rail supports consistent potential equalisation across devices and metallic structures, helping to reduce potential differences and interference.

Suitable for

• Server rooms and data centres for central earthing of racks and equipment
• Telecommunications cabinets and distribution frames requiring multiple conductor terminations
• Electrical switchrooms and industrial panels where large conductors need a single bonding point
• Building infrastructure grounding where consolidated equipotential bonding is required

When it may not be suitable

This rail is intended for conductors up to 30 × 4 mm; it may not be appropriate where conductors exceed that cross-sectional limit or where specialised termination hardware is required. It is a passive busbar and does not include insulative housings, surge arrestors or connectors for signal grounding; such additional components must be selected separately if needed for a particular installation.

Key specifications

• Acceptable conductor cross-section: up to 30 × 4 mm
• Type: equipotential grounding/earthing busbar
• Typical applications: server racks, telecom cabinets, electrical panels
• Construction: metal conductive rail designed for multiple terminations

How to use

Install the equipotential rail in a suitable location inside the rack, cabinet or panel where several grounding conductors converge. Secure the rail to a stable metal surface using appropriate fixings, then terminate each conductor to the rail using compatible lugs, bolts or clamps sized for the conductor cross-section. Ensure all terminations are clean, mechanically sound and tightened to the torque values recommended for the chosen fasteners. Verify continuity to the main earth electrode and document the connections in the grounding layout.

What to consider before purchase

• Confirm conductor sizes and that they do not exceed 30 × 4 mm cross-section
• Check available space and mounting options inside the rack or panel for the rail
• Determine required termination hardware (lugs, bolts, washers) compatible with both conductors and the rail
• Assess whether additional components (insulators, surge protection, labels) are needed for your installation

Usage recommendations

For reliable grounding performance, use appropriately sized lugs and torque-controlled fasteners, maintain corrosion-resistant contact surfaces, and ensure the rail is bonded to the facility main earth. Regularly inspect terminations for tightness and corrosion as part of preventive maintenance.