Reliable Aluminium Cable Compression Lugs with 2 Holes for Enhanced Electrical Connections

Selection should consider conductor material and size, strand class, barrel dimensions, palm width and thickness, bolt-hole pattern, current duty, crimping system and environment. The cable and terminal drawings should be reviewed together.

Aluminium lugs provide a lightweight, conductive termination for aluminium conductors and suitably designed systems. Alloy, barrel geometry, joint compound and surface preparation are coordinated to achieve stable contact pressure and low resistance.

Yes. Conex manufactures aluminium cable compression lugs 2 holes to customer drawings and application requirements. Dimensions, interfaces, material, finish, identification, inspection and packaging can be tailored after an engineering review, subject to process capability and order quantity.

Compatibility depends on the lug barrel, conductor diameter and strand construction, not only nominal cross-sectional area. State the conductor standard, material, size and class so the required insertion depth and compression system can be confirmed.

The approved die, tool, number of compressions and crimp sequence create the intended metal deformation and contact area. An incorrect die or misplaced crimp can damage strands, leave voids or produce excess resistance.

Preparation normally follows the cable, lug and tool instructions and may include cutting square, stripping to the correct length, cleaning oxides and applying or retaining approved inhibitor compound. Work should be performed by trained personnel using calibrated tools.

Connection to copper may be possible with a compatible plated palm, transition arrangement or approved joint system. Galvanic corrosion, surface finish, joint compound, hardware and environmental sealing must be considered for the complete interface.

Hole diameter, spacing, palm width, edge distance and orientation can be made to customer drawings within manufacturing limits. Standard equipment patterns or project-specific pads should be stated clearly, including slotting or anti-rotation needs.

Correct lug selection, conductor preparation, die and tool, complete crimping, clean palm surfaces and controlled bolting all help maintain low resistance. Installation defects, contamination or loose joints can create local heating and should be prevented through inspection.

Checks can include material, dimensions, conductor insertion, hole pattern, finish and visual condition. Crimp pull-out, resistance, temperature-rise, thermal cycling or other qualification tests should follow the applicable specification and be agreed before production.

For an accurate quotation, provide a controlled drawing or 3D model, material or alloy requirement, critical dimensions and tolerances, finish, order quantity, annual demand, application and any inspection or documentation needs. Conex reviews manufacturability before confirming tooling, process route, lead time and commercial terms.

Two-hole lugs are commonly produced with NEMA 1-3/4 in (44.5 mm) hole centres for North American equipment and with DIN / IEC spacings for European switchgear. Hole diameters to suit M10, M12 and 1/2 in bolts are standard.

Two bolts prevent the lug from rotating, increase contact area and clamping force, and are required by many utilities and equipment makers for larger conductors or high-vibration environments.

Yes. Aluminium compression lugs are normally pre-filled with oxide-inhibiting compound and sealed with an end cap to keep out moisture until installation, ensuring low contact resistance after crimping.