Terminal cross connector ELKO-BIS ZK204OC for Ø16 mm, 4×M8 fastening (MPN 21401601)

ELKO-BIS ZK204OC is a terminal cross connector designed to join four elements to a Ø16 mm profile or rod using four M8 fasteners. Intended for electrical grounding and mechanical junctions, the connector ensures a stable mechanical connection and low-resistance electrical continuity between intersecting conductors or structural members. It is commonly applied in grounding grids, cable trays, and metal framework installations where a compact, cross-shaped junction is required.

Advantages

The connector offers a compact cross configuration that enables connection of four members at a single intersection while maintaining reliable clamping pressure through four M8 fastening points. Constructed to provide consistent mechanical stability and effective electrical contact, the component facilitates straightforward assembly and long-term continuity in corrosion-resistant installations when used with appropriate materials. Its geometry reduces the need for complex fitting or machining on site.

Suitable for

• Creating cross-junctions in grounding grids and earthing systems
• Joining Ø16 mm profiles or rods in cable tray supports and metal frameworks
• Mechanical fixation points where four members converge
• Applications requiring both mechanical connection and electrical continuity

When it may not be suitable

This connector is specifically sized for Ø16 mm profiles and requires M8 fastening hardware; it may not be appropriate for profiles of substantially different diameters or for applications that demand higher mechanical loads than the connector’s design allows. It is not intended to replace dedicated structural brackets for heavy-duty load-bearing constructions or for use where insulation between conductors is required.

Key specifications

• Compatible profile/rod diameter: Ø16 mm
• Fastening points: 4 × M8 thread connections
• Configuration: cross-shaped connector for four-way junctions
• Primary functions: mechanical clamping and electrical continuity
• Typical applications: grounding/earthing systems, cable trays, metal frameworks

How to use

Position the connector at the intended intersection so that each of the four Ø16 mm profiles or rods aligns with one arm of the cross. Insert the profiles into their respective clamping areas and fit M8 fasteners through the designated points. Tighten the fasteners to achieve secure mechanical clamping and reliable electrical contact, taking care to avoid over-torquing which could deform the profiles or connector. Verify continuity and mechanical stability after installation and perform any required corrosion protection or bonding checks consistent with the installation standards.

What to consider before purchase

• Confirm compatibility with Ø16 mm profiles or rods used in your installation
• Ensure M8 fastening hardware and appropriate tools are available
• Assess mechanical load requirements to verify the connector meets strength needs
• Check material and corrosion-resistance requirements for the installation environment

Usage recommendations

For reliable electrical and mechanical performance, use specified M8 hardware tightened to recommended torque values, ensure clean metal contact surfaces free of paint or oxidation, and perform a continuity test after assembly. When used in exposed or corrosive environments, consider additional protective measures such as compatible coatings or sacrificial anodes according to site standards.