Burndy KA29U Aluminum Set-Scre...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1.56
Burndy KA29U Aluminum Set-Screw Terminal Lug

Burndy KA29U Aluminum Set-Screw Terminal Lug

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Model: KA2U

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1.56
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Burndy KA29U Aluminum Set-Screw Terminal Lug, Dual-Rated Al/Cu, 1-Hole

The Burndy KA29U is an aluminum universal set-screw terminal lug built for dual-rated Al/Cu conductor terminations in commercial, industrial, and utility electrical systems. This 1-hole mechanical lug accepts a wide conductor range of 6 AWG (Str) through 250 kcmil, mounts on a 5/16" stud, and is secured with a single set screw for a fast, dependable termination. Its aluminum body and electro tin-plated finish are designed to resist oxidation and corrosion, helping maintain a stable, low-resistance connection over the life of the installation. As a universal terminal, the KA29U is suited for panelboards, switchgear, grounding systems, and other equipment terminations where flexible conductor sizing and dual-metal compatibility are required.

Key Features

  • Wide Conductor Range: Accepts 6 AWG (Str) through 250 kcmil conductors, giving installers flexibility to terminate a broad range of wire sizes with a single lug.
  • Aluminum Construction: An aluminum lug body provides a lightweight, corrosion-resistant terminal suited to demanding electrical environments.
  • 1-Hole, 1-Screw Mounting: Single-hole pad with one set screw delivers a fast, secure mechanical termination without specialized crimping tools.
  • 5/16" Mounting Stud: Sized for standard 5/16" hardware, simplifying installation on busbars, panels, and equipment pads.
  • Dual Rated Al/Cu: Rated for use with both aluminum and copper conductors, so the same lug can be specified across mixed-conductor jobs, reducing the number of part numbers electricians and distributors need to stock.
  • Electro Tin Plated Finish: The tin-plated surface helps reduce oxidation at the connection point and supports a stable, low-resistance electrical contact over time.
  • Universal Terminal Design: A general-purpose mechanical lug configuration intended for a broad range of termination applications rather than a single equipment type.

Technical Specifications

  • Conductor Range: 6-AWG.
  • Plating: Electro Tin Plated.

Typical Applications

  • Panelboard and Switchgear Connections
  • Grounding and Bonding Terminations
  • Motor Control Center Wiring
  • Industrial and Commercial Electrical Installations
  • Utility and Equipment Terminations
  • Renovation and New Construction Projects

Why Burndy?

Burndy mechanical lugs like the KA29U are engineered for dependable, code-compliant electrical terminations where installers need flexibility across conductor types and sizes. The dual-rated Al/Cu aluminum construction, 1-hole set-screw mounting, and electro tin-plated finish work together to deliver a durable, low-resistance connection built for demanding commercial, industrial, and utility electrical work. Specifying a dual-rated universal terminal like the KA29U also helps simplify inventory for contractors and distributors who need one lug to cover both aluminum and copper conductor jobs.

Manufacturer Resources

Spec Sheet

Product Specs

Plating:
Electro Tin Plated
Product Type:
Mechanical Lug
Product Material:
Aluminum
list_batch:
BUR-20260916
Department:
Electrical
Product Subgroup:
Lugs & Terminals
Product Group:
Wire Connectors & Terminals

Burndy KA2U – Frequently Asked Questions

1) Can the Burndy KA29U lug terminate both aluminum and copper conductors?
Yes. The KA29U is a dual-rated Al/Cu mechanical lug, so the same part covers aluminum and copper conductor terminations. That is the main reason contractors and distributors stock it as a single line item instead of separate copper-only and aluminum-only lugs. The body is aluminum with an electro tin plated finish to hold down oxidation at the contact point.
2) What size stud or bolt does the Burndy KA29U mount on?
It has a one-hole pad sized for 5/16 inch mounting hardware, so it lands on standard 5/16 inch busbar, panel, and equipment pad studs. Mounting bolt or nut hardware is not part of the lug itself.
3) Do I need a crimp tool to install the Burndy KA29U?
No. It is a mechanical set-screw lug, secured with a single set screw, so it installs with a hex driver and no crimper or die set. That makes it practical for field terminations and retrofit work where nobody wants to haul a hydraulic crimper into a panel.
4) Should I use a set-screw lug like the KA29U or a compression lug?
A set-screw lug is the right call when conductor sizes vary across a job or you are working in the field without crimp tooling, since one KA29U covers 6 AWG through 250 kcmil and both aluminum and copper. A compression lug is the better choice when the spec calls for a fixed, tool-verified crimp on one specific conductor size. For panelboards, switchgear, MCC wiring, and grounding and bonding terminations where flexibility matters, the mechanical set-screw design is what the KA-series is built for.
5) Is the Burndy KA29U suitable for grounding and bonding terminations?
Yes, grounding and bonding is one of its listed applications, along with panelboard and switchgear connections, motor control center wiring, and general utility and equipment terminations. The dual Al/Cu rating matters here because ground conductors are frequently copper while the feeders in the same enclosure are aluminum.
6) Will an aluminum lug corrode in a damp or industrial electrical enclosure?
The KA29U body is aluminum with an electro tin plated finish, which is applied specifically to slow oxidation at the contact surface and keep the connection low resistance over time. Tin plating is also what makes an aluminum body acceptable against copper conductors without a dissimilar-metal problem at the interface.
7) Where can I get the manufacturer spec sheet for the Burndy KA29U?
Burndy publishes a spec sheet for the KA29U at hubbellcdn.com/specsheet/BRDY-KA29U-SPEC-EN.pdf. That is the document to pull for torque values and pad dimensions before a submittal.
How fast can I get the Burndy KA2U delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Burndy KA2U come with a warranty?
Absolutely. The Burndy KA2U is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Burndy KA2U?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Burndy KA2U from ZenSupply?
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