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Aluminum Three Barrel Connectors 500 kcmil min. to 1000 kcmil max. 1/2 inch Stud Size

1000 in stock, ready to be shipped
Original price $62.17 - Original price $62.17
Original price
$62.17 - $62.17
Current price $62.17
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The 99037 ALCU 3-Conductor Lug is a robust and reliable electrical connector designed for secure termination of three conductors. Crafted with high-quality aluminum, this lug ensures efficient and durable electrical connections, making it an essential component for heavy-duty wiring applications accommodating conductor sizes up to 1000 kcmil.

Product Overview 

The 99037 ALCU 3-Conductor Lug is a high-capacity electrical connector designed for terminating three conductors with conductor sizes ranging up to 1000 kcmil. Crafted from high-quality aluminum, it provides a durable and efficient solution for heavy-duty wiring applications. The lug features a robust construction with a chamfered wire entry for ease of installation, ensuring secure and reliable connections. 


  • Wire Entry Type: Chamfered
  • Material: Electro-Tin Plated High Strength 6061-T6 Aluminum Alloy
  • Overall Length: 5-31/32 Inch
  • Conductor Size Range: 500 kcmil min. to 1000 kcmil max.
  • Conductor Material: Aluminum/Copper
  • Number of Conductors: 3
  • Stud Size: 1/2 Inch
  • Pad Size: 3-5/8 Inch L X 4-7/8 Inch W X 1/2 Inch Thk
  • Pad Type: Straight
  • Number of Pad Holes: 6
  • Screw Type: 1/2 Inch Hex
  • Height: 2-13/16 Inch
  • Temperature Rating: 90 Deg C

Uses and Cases 

  • Industrial Power Distribution: Ideal for industrial applications where secure termination of three conductors, ranging from 500 kcmil to 1000 kcmil, is needed for robust power distribution systems.
  • Utility Substations: Applied in utility infrastructure projects for connecting conductors in electrical substations, contributing to the overall reliability of the electrical grid.
  • Commercial Construction Projects: Used in commercial construction for secure and efficient electrical connections, providing stability in the power distribution systems of buildings and facilities.
  • Heavy Machinery Wiring: Suitable for wiring heavy machinery, ensuring reliable and durable connections for the efficient operation of equipment.
  • Renewable Energy Systems: Suited for use in renewable energy installations, such as large-scale solar or wind power projects, ensuring dependable electrical connections for energy production.
  • Data Centers: Applicable in data centers where high-capacity electrical connections are essential for supporting the power needs of servers and equipment.
  • Electrical Panel Terminations: Utilized for terminating large conductors in electrical panels, ensuring reliable connections and efficient distribution of electricity.
  • Telecommunications Infrastructure: Employed in telecommunications projects for secure wire terminations, contributing to the stability and reliability of communication systems.

Item Features 

  • Chamfered Wire Entry Type: Facilitates easy and secure insertion of wires, streamlining the installation process.
  • High-Strength Material: Constructed with electro-tin plated high-strength 6061-T6 aluminum alloy, ensuring durability and resilience in demanding environments.
  • Wide Conductor Size Range: Accommodates a broad range of conductor sizes, from 500 kcmil to 1000 kcmil, providing flexibility for various wiring applications.
  • Three-Conductor Design: Specifically designed for terminating three conductors, enhancing versatility in electrical configurations.
  • Stud Size: Features a 1/2-inch stud size, making it compatible with standard electrical components.
  • Pad Size: Offers a substantial pad size of 3-5/8 inches L X 4-7/8 inches W X 1/2 inch Thk, providing stability during conductor connections.
  • Number of Pad Holes: Equipped with six pad holes, ensuring flexibility and compatibility with various configurations.
  • Pad Type: Incorporates a straight pad design for simplicity and stability during conductor connections.
  • Hex Screw Type: Utilizes a 1/2-inch hex screw for ease of installation and secure fastening.
  • Compact Design: With an overall length of 5-31/32 inches and a height of 2-13/16 inches, it provides a compact yet robust solution for electrical connections.

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