Terminal connector Simet STB 50 Al/Cu threaded busbar connector for aluminium and copper conductors, black (81001007)

Simet STB 50 is a threaded busbar connector engineered to join aluminium and copper conductors in electrical installations. The connector creates a secure mechanical and electrical link between dissimilar metals, reducing galvanic corrosion and enabling reliable current transfer. Supplied with a black finish, this connector is intended for use in busbars, cable joints and power distribution systems where mixed-metal connections are required.

Advantages

The threaded design ensures a stable clamping force and straightforward installation using standard tooling. Compatibility with both aluminium and copper conductors removes the need for separate adapters when combining different conductor materials. The black finish provides visual identification and basic surface protection without affecting electrical contact quality. Its construction delivers consistent electrical conductivity and mechanical strength appropriate for power distribution tasks.

Suitable for

• Joining aluminium and copper conductors in busbars
• Power distribution panels and switchgear connections
• Cable joints in industrial and commercial electrical installations
• Retrofit or expansion projects where mixed-metal terminations are present

Key specifications

• Conductor compatibility: aluminium (Al) and copper (Cu)
• Connection type: threaded busbar/terminal connector
• Finish: black surface coating
• Typical application: busbars, cable joints and power distribution systems

How to use

Prepare conductor ends by removing insulation and any oxide layers according to standard electrical practice for aluminium and copper. Position conductors within the connector, align threads and tighten to the specified torque using a calibrated torque wrench or appropriate hand tool. Ensure secure mechanical contact and verify continuity with suitable test equipment. Follow applicable national and local electrical codes and safety procedures during installation.

Usage recommendations

When connecting aluminium to copper, use anti-oxidation compound or approved treatment if required by local practice, and tighten to the manufacturer-recommended torque to maintain long-term electrical and mechanical integrity. Inspect connections periodically for signs of corrosion or loosening in accordance with maintenance schedules.