Sealed aluminum reducing coupling ALS 150-150/1 ALS_150-150/1

Application and Construction of the Aluminum Reducing Connector

This component connects multi-strand aluminum conductors with a cross-section of 150 mm², ensuring a hermetic connection in power installations. By using aluminum as the primary material, the connector minimizes the risk of galvanic corrosion, which is crucial when joining cables of this type. The design features a central barrier that makes it oil-tight—an essential characteristic for installation in locations exposed to moisture or contact with insulating oils.

It is worth noting the absence of a copper pin in the construction. This is an intentional solution for purely aluminum circuits, eliminating the need for additional contact pastes or special methods for joining different metals. The connector is designed for cables with a nominal cross-section of 150 mm² (RM/SM and SE), indicating its versatility regarding various types of multi-strand conductors used in medium and low voltage networks.

Key Features and Operational Benefits

The main advantage of this model is its hermeticity and resistance to external factors. The central barrier not only prevents moisture ingress but also protects the contact point from oxidation, resulting in long-term stability of the electrical connection. For the installer, this means fewer potential failures in the future and reduced need for maintenance inspections.

The entire unit is made of aluminum, ensuring consistency of physical properties with the connected cables and eliminating problems with intermetallic corrosion. The presence of the central barrier makes the connector suitable for industrial or underground applications where there is a risk of contact with oils or moisture. The device perfectly fits cables with a cross-section of 150 mm² (both RM/SM and SE), and the absence of copper elements simplifies installation in aluminum systems—there is no need for Cu-Al transition pieces or special contact pastes.

Installation and Tools

During installation work, proper preparation of cable ends must be ensured. The connector requires crimping with dies of the appropriate profile to achieve full hermeticity and low transition resistance. For this model (designation ALS_150-150/1), it is crucial to use tools matching the external dimensions of both the cable and the connector itself.

To facilitate planning of the installation space, note the characteristic dimensions of the series: the connector handles a conductor with a cross-section of 150 mm² on both sides (no dimensional reduction in this specific variant), is made of aluminum, and features a central barrier ensuring oil-tight and moisture-tight sealing. The conductor type is multi-strand (RM/SM) or SE, allowing flexible adaptation to various cable standards used in distribution networks.

Remember that the correct tightening torque or crimping force depends on the hydraulic or mechanical tool used. Improper installation can lead to non-hermetic connections, which, in the absence of oil-tightness, could result in degradation of the cable insulation inside the protective conduit.