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Aluminum Three Barrel Connectors 6 AWG min. to 3/0 AWG max. 1/2 Inch Bolt Size

1000 in stock, ready to be shipped
Original price $9.75 - Original price $9.75
Original price
$9.75 - $9.75
Current price $9.75
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The 99021 3-Conductor Lug is a durable and efficient electrical connector designed for secure three-conductor terminations. Constructed with high-quality aluminum and copper materials, this lug ensures reliable connections for 3/0 AWG conductors in various electrical applications.

Product Overview

The 99021 is a robust 3-conductor lug designed for secure electrical connections. This versatile connector is specifically engineered for 3/0 AWG conductors and features a durable construction using high-quality aluminum and copper materials. With a 3-conductor design, it provides flexibility in wiring configurations, making it suitable for a variety of applications. Ideal for use in industrial settings, electrical panels, and other environments where reliable and efficient electrical connections are essential.


  • Wire Entry Type: Chamfered
  • Material: Electro-Tin Plated High Strength 6061-T6 Aluminum Alloy
  • Overall Length: 3-7/8 Inches
  • Conductor Size Range (Min/Max): 6 AWG minimum to 3/0 AWG maximum
  • Conductor Material: Aluminum/Copper
  • Number of Conductors: 3
  • Stud Size: 1/2 Inch
  • Pad Size: 3 Inches Length X 2-13/16 Inches Width X 5/16 Inches Thickness
  • Number of Pad Holes: 2
  • Pad Type: Straight
  • Screw Type: 5/16 Inch Hex Screw
  • Size: 1-1/8 Inch Height
  • Temperature Rating: 90 Degrees Celsius

Uses and Cases 

  • Electrical Panels: Ideal for securely connecting three 3/0 AWG conductors in electrical panels and distribution boards.
  • Power Distribution Systems: Suitable for use in power distribution systems where reliable and efficient three-conductor terminations are required.
  • Industrial Machinery: Used in industrial settings for connecting large conductors in machinery and equipment requiring high current capacities.
  • Commercial Wiring: Applicable in commercial buildings for wiring tasks that involve three conductors of 3/0 AWG, providing a robust solution for diverse applications.
  • Renewable Energy Systems: Suitable for use in renewable energy projects such as solar or wind installations, ensuring dependable electrical connections.
  • Large-Scale Construction Projects: Well-suited for use in large construction projects where durable and efficient electrical connections are required.
  • Transformers: Used in the electrical connections of transformers to ensure a reliable flow of power between different components.
  • Switchgear Installations: Commonly employed in switchgear installations where electrical equipment is interconnected for controlling, protecting, and isolating electrical systems.
  • Data Centers: In data center installations, where precision and reliability are crucial, the lug can be used for connecting conductors within electrical systems supporting servers and networking equipment.
  • Electrical Subpanels: Suitable for connecting heavy conductors in electrical subpanels to ensure efficient power distribution within buildings.

Item Features 

  • Chamfered Wire Entry: Facilitates easy and precise insertion of conductors.
  • Material: Constructed from electro-tin plated high-strength 6061-T6 aluminum alloy, ensuring durability and corrosion resistance.
  • Overall Length: Measures 3-7/8 inches, providing a compact yet robust solution for various wiring applications.
  • Conductor Size Range: Accommodates conductors from 6 AWG minimum to 3/0 AWG maximum, offering flexibility for diverse wiring needs.
  • Conductor Material: Compatible with both aluminum and copper conductors.
  • Number of Conductors: Designed to accommodate three conductors, allowing for efficient wiring configurations.
  • Stud Size: Equipped with a 1/2-inch stud size for a secure connection point for electrical conductors.
  • Pad Size and Holes: Features a pad size of 3 inches length x 2-13/16 inches width x 5/16 inches thickness, with two pad holes for secure installations.
  • Pad Type: Straight pad design for ease of use and stability.
  • Screw Type: Utilizes a 5/16-inch hex screw for secure fastening.
  • Size: Compact with a height of 1-1/8 inch.
  • Temperature Rating: Rated for a temperature of 90 degrees Celsius, ensuring reliability in various environmental conditions.

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