CABAC BI-METAL LUG 500MM2-BLANK BL500 x 1/EACH

Description

High-Performance Bi-Metal Lug for Aluminium to Copper Connections

The CABAC BL500 Bi-Metal Lug is designed to deliver reliable electrical performance when terminating large aluminium conductors to copper equipment. Manufactured from 99.6% pure aluminium (barrel) and 99.9% pure copper (palm), the lug is joined using a friction welding process that produces a strong, electrically sound bond between the two metals. The aluminium barrel is chemically treated and pre-filled with jointing compound, helping break down oxide layers on aluminium conductors during crimping. This reduces contact resistance and improves conductivity, ensuring stable connections even in demanding electrical installations. When crimped from the palm end first, the compound is forced into the conductor strands, improving contact quality and ensuring optimal electrical transfer across the connection.

Built for Reliability and Electrical Compliance

CABAC bi-metal lugs are engineered for installations where long-term reliability and compliance with international standards are essential. The friction-welded joint prevents electrolysis between aluminium and copper, reducing the risk of connection failure over time. The lug is fully annealed, providing excellent ductility and mechanical strength while maintaining consistent conductivity. With a tensile strength of 110 MPa and ductile rating of 28%, the connector is built to handle the mechanical stresses associated with heavy-duty cable terminations. These lugs are compliant with major international standards including AS/NZS4325 Part 1, IEC, DIN/VDE, JIS, and BS, giving electricians confidence that the product meets recognised performance and safety requirements for professional installations.

Trade-Friendly Installation with Standard Tooling

Designed with electricians and contractors in mind, the CABAC BL500 lug is compatible with standard Australian crimping tooling and normal aluminium hexagonal dies, helping streamline installation on site. Tooling is interchangeable between CABAC, Utilux, and Burndy, making it easy to integrate with existing crimping equipment used across many electrical businesses. The wide CABAC bi-metal lug range supports both stranded sector and circular stranded aluminium conductors, giving contractors flexibility across different cable types and project specifications. For busy trade professionals working to tight project timelines, this compatibility helps minimise setup time, avoid tooling issues, and keep installations moving without delays.

Key Specs

• Nominal Conductor Size: 500 mm²

• Stud Size: Blank

• Aluminium Sleeve Purity: 99.6%

• Copper Palm Purity: 99.9%

• Joining Method: Friction welding (IEC standard)

• Tensile Strength: 110 MPa

• Ductile Rating: 28%

• Aluminium Resistivity: 2.6 micro-ohm cm (max)

• Copper Resistivity: 1.738 micro-ohm cm

• Aluminium Conductivity: 61.8% IACS (min)

• Copper Conductivity: 99.7% IACS

• Operating Temperature Range: -40°C to 100°C

• Metal State: Fully annealed including joint

• Tooling Compatibility: CABAC, Utilux, Burndy

Ideal For

• Terminating large aluminium conductors to copper busbars or equipment

• Commercial and industrial electrical installations

• Switchboard and distribution board wiring

• Infrastructure and heavy power cabling projects

• Electrical contractors working with aluminium power cables

• Maintenance teams performing cable upgrades or replacements