Earthing/grounding busbar extension kit Rittal DK 7549.000 — pack of 10

Rittal DK 7549.000 is a pack of 10 earthing/grounding busbar extension elements designed for enclosure and switchgear installations. These extension sections allow installers to extend the main grounding busbar vertically or horizontally inside electrical cabinets and control panels, providing additional contact points for equipotential bonding and cable terminations while maintaining a compact footprint.

Advantages

The kit provides ten identical busbar extensions that are compatible with standard Rittal enclosure earthing systems, enabling consistent mechanical and electrical connections. Using matched extension elements reduces installation time by simplifying alignment and mounting, and supports reliable conductive continuity across multiple panels. The uniform design helps maintain neat cable routing and reduces the need for improvised grounding solutions.

Suitable for

• Extending grounding/earthing busbars in electrical enclosures and switchgear
• Creating additional equipotential bonding points for control panels
• Industrial and commercial electrical distribution cabinets
• Retrofitting existing panels where extra busbar length is required

When it may not be suitable

This extension kit is intended for use with compatible enclosure earthing systems and may not fit non-standard or proprietary busbar designs. It does not include fasteners, mounting rails, or accessories that may be required for specific enclosure types; installers should verify mechanical compatibility and supply any missing parts separately.

Key specifications

• Quantity: 10 identical busbar extension elements
• Function: earthing/grounding busbar extension for enclosures
• Typical installation: vertical or horizontal extension inside cabinets and switchgear
• Application environment: electrical enclosures, control panels, switchgear rooms

How to use

Installers mount the busbar extension elements adjacent to the existing grounding busbar within the enclosure, ensuring firm mechanical contact and conductive continuity. Sections are positioned and secured according to the enclosure manufacturer’s instructions and local electrical standards. After mechanical attachment, connect the grounding conductors and verify continuity with appropriate testing equipment to ensure effective equipotential bonding and low-resistance connections.

What to consider before purchase

• Confirm mechanical compatibility with the enclosure earthing system and available mounting space
• Verify that the busbar cross-section and material meet the required current-carrying and grounding specifications for the installation
• Check whether additional mounting hardware or accessories are needed and source them if not included
• Ensure compliance with local electrical codes and grounding practices

Usage recommendations

Use these Rittal busbar extensions in combination with proper mounting and testing procedures: secure each section firmly, attach grounding conductors with appropriate terminals, and confirm low-resistance continuity after installation. For complex or high-current systems consult relevant standards or a qualified electrician to determine correct sizing and arrangement.