ENSTO branch connector Al/Cu 50/150 mm² SL14.2 for aluminium and copper conductors

ENSTO branch connector Al/Cu 50/150 mm² SL14.2 is designed to form a secure electrical and mechanical connection between aluminium and copper conductors with cross-sections from 50 to 150 mm². The connector provides stable contact and clamping force suited for power distribution networks, service taps and transitions between overhead and underground cables where dissimilar-metal joints are required. Constructed to meet routine installation and operational demands, this branch connector supports safe Al-to-Cu connections without the need to re-design conductor layouts.

Advantages

The connector ensures reliable conductivity and mechanical retention between aluminium and copper conductors across the specified cross-section range. Its design reduces the risk of loosening under vibration and thermal cycling, and it facilitates straightforward installation with standard tooling. The component is suitable for both overhead and buried applications where a compact, durable Al/Cu branching solution is needed.

Suitable for

• Power distribution network branching
• Service line connections and taps
• Overhead-to-underground cable transitions
• Dissimilar-metal (aluminium to copper) conductor joints

Key specifications

• Compatible conductor types: aluminium and copper
• Supported conductor cross-section range: 50–150 mm²
• Application environment: overhead and underground installations
• Function: branch (tap) connection between primary and secondary conductors
• Connection method: mechanical clamping for electrical contact

How to use

Select conductors within the supported cross-section range and prepare conductor ends according to standard stripping and cleaning procedures for aluminium and copper. Position the conductors inside the connector bodies as instructed by the manufacturer's installation guide, apply the specified torque or mechanical compression using appropriate tools, and verify correct seating and clamping. After installation, check for secure mechanical retention and continuity to confirm an acceptable electrical connection.

Usage recommendations

Use corrosion-inhibiting compounds or approved anti-oxidation treatments where required by local practice when joining aluminium to copper, and follow local regulations and the manufacturer's detailed installation instructions. Inspect connections periodically for signs of corrosion or loosening, especially in outdoor or humid environments.