ENSTO branching clamp SM1.11 for aluminium conductors 10–50 mm² and copper 1.5–10 mm²

ENSTO branching clamp SM1.11 for aluminium conductors 10–50 mm² and copper 1.5–10 mm² is a mechanical connector designed to create a reliable electrical and mechanical tap between an aluminium main conductor and a copper branch conductor. The clamp is intended for power distribution and repair work on overhead lines and fixed installations, enabling secure branching or line extension in outdoor and indoor networks when installed by trained personnel.

Advantages

The construction provides stable mechanical retention and low-resistance electrical contact between dissimilar metals without the need for soldering. The clamp is compact and suitable for field installation, offering corrosion-resistant materials and a design that reduces the risk of conductor slippage. It supports a range of conductor cross-sections, enabling flexibility when working with common aluminium and copper cables used in distribution networks.

Suitable for

• Creating tap connections from aluminium mains to copper branch conductors
• Repairs and maintenance on overhead distribution lines
• Extending fixed electrical installations where dissimilar conductors meet
• Field installation by trained electricians for branch circuits

Key specifications

• Main conductor material compatibility: aluminium
• Main conductor cross-section range: 10–50 mm²
• Branch conductor material compatibility: copper
• Branch conductor cross-section range: 1.5–10 mm²
• Mechanical retention suitable for outdoor overhead and fixed installations
• Corrosion-resistant contact surfaces appropriate for mixed-metal connections

How to use

Prepare conductors by stripping insulation according to applicable standards and ensure surfaces are clean and free of oxidation. Position the aluminium main conductor and the copper branch conductor into the designated grooves of the clamp, then tighten the clamp hardware to the recommended torque specified in the manufacturer's installation instructions. After installation, verify mechanical stability and electrical continuity with appropriate test instruments. Installation must be performed by trained electricians following local regulations and safety procedures.

Usage recommendations

Use the clamp only within the specified conductor size ranges and for the stated conductor materials. Regularly inspect installed connections for signs of corrosion or loosening and re-torque if necessary during scheduled maintenance. Follow applicable safety standards and the manufacturer's installation guidelines for reliable long-term performance.