Terminal block ENSTO SLIW67 four-way branch connector AL-CU 4x6-35

ENSTO SLIW67 four-way branch connector AL‑CU 4x6‑35 is designed to create secure electrical splits between aluminium and copper conductors. The connector accommodates one incoming conductor and up to four outgoing conductors within the 6–35 mm² cross‑section range, providing a compact and robust solution for branching, repair and distribution tasks in power and control installations. The product is intended for use where mixed-metal conductor connections are required and where a mechanical and electrical reliable joint is essential.

Advantages

The connector provides reliable aluminium-to-copper contact with a construction that ensures good mechanical clamping and stable electrical continuity over time. Its four-way configuration allows multiple outgoing conductors from a single feed point, reducing the need for separate junctions and saving installation space. The design is compact and suitable for installations in distribution boxes, junction chambers and repair sites, offering consistent performance for conductors in the 6–35 mm² range.

Suitable for

• Branching aluminium conductors to several copper conductors in low- and medium-voltage distribution networks
• Repairing damaged conductors and restoring continuity without replacing long cable sections
• Compact junctions inside distribution boxes, cabinets and underground chambers
• Mixed-metal connections where aluminium and copper conductors are present

When it may not be suitable

This connector is not suitable for conductors outside the 6–35 mm² cross‑section range or for mechanical scenarios that require frequent disassembly and reassembly, as repeated operations can affect long‑term clamp integrity. It is not intended for direct connection to active components that require specific interface types or insulation classes beyond standard conductor jointing.

Key specifications

• Type: four‑way branch connector for aluminium‑to‑copper connections
• Compatible conductor cross‑section: 6–35 mm²
• Number of outgoing conductors: up to 4
• Application: branching, distribution and repair of electrical conductors
• Construction: mechanical clamping designed for secure electrical contact between AL and CU conductors

How to use

Prepare conductor ends by stripping insulation to the length recommended for the connector and ensure conductor surfaces are clean and free of oxidation or contaminants. Insert the aluminium and copper conductors into the designated ports and tighten clamps to the torque values specified by the manufacturer or installation standard. After assembly, verify mechanical retention and measure electrical continuity to confirm a low‑resistance connection. If used in outdoor or underground locations, ensure the assembled joint is protected with appropriate sealing or enclosure material to prevent corrosion and water ingress.

What to consider before purchase

• Confirm conductor cross‑section sizes fall within the 6–35 mm² range
• Verify the need for aluminium‑to‑copper branching rather than same‑metal connectors
• Check installation space and whether a four‑way connector fits the available junction box or chamber
• Ensure access to correct tightening tools and torque specifications for secure installation

Usage recommendations

Use the connector in accordance with local electrical codes and ENSTO installation guidelines. Clean conductor surfaces before assembly and apply appropriate corrosion protection or insulation for long‑term reliability, especially in outdoor or high‑humidity environments.