Burndy K-Series 4-Conductor Al...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$55.35
Burndy K-Series 4-Conductor Aluminum Universal Terminal Lug, Dual Rated AL/CU

Burndy K-Series 4-Conductor Aluminum Universal Terminal Lug, Dual Rated AL/CU

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Model: K4A29U-4N

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

$55.35
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Burndy 4-Conductor Aluminum Universal Terminal Lug, Tin-Plated

The Burndy Aluminum Universal Terminal Lug is a 4-conductor terminal connector engineered for aluminum and copper stranded conductors ranging from 6 AWG to 250 kcmil. Built with tin plating for enhanced corrosion resistance, this UL 467 Listed and CSA Certified terminal lug accommodates four conductors at a single connection point and carries a specified 275 lb-in installation torque, making it a dependable choice for professional panel, switchgear, and distribution equipment connections.

Key Features

  • Conductor Range: Accommodates 6 AWG-250 kcmil aluminum and copper stranded conductors for versatile ampacity coverage.
  • 4-Conductor Design: Terminates four conductors in a single connection point for efficient, space-saving panel wiring.
  • Aluminum Construction: Aluminum body suited for both aluminum and copper stranded conductor terminations.
  • Tin Plating: Provides superior corrosion resistance and maintains reliable, long-term electrical contact.
  • 275 lb-in Torque Rating: Specified installation torque ensures proper connection integrity and helps prevent over-tightening damage.
  • Universal Compatibility: Works with both aluminum and copper stranded conductors for installation flexibility.
  • UL 467 Listed Design: Meets rigorous safety standards for electrical terminal connections and code compliance.

Certifications & Compliance

  • UL Listed
  • UL 467 Industry Standard
  • CSA Certified

Technical Specifications

  • Installation Torque: 275
  • Number Of Conductors: 4
  • Csa Certified: Y
  • Type Of Plating: Tin
  • Culus: N
  • Ul Listed: Y
  • Plated Yes Or No: Y
  • Ul Recognized: N
  • Rated For Direct Burial: N
  • Product Type: Cable Lug
  • Product Group: Wire Connectors

Typical Applications

  • Electrical Panel Connections
  • Switchgear Installations
  • Motor Control Centers
  • Distribution Equipment
  • Industrial Control Panels
  • Commercial Electrical Systems
  • Multi-Conductor Terminations

Why Burndy?

Burndy terminal lugs deliver dependable electrical connections backed by UL 467 listing and CSA certification. The tin-plated finish and precision aluminum construction support long-term reliability in demanding panel, switchgear, and distribution equipment applications, making this terminal lug a trusted choice for professional electrical installations.

Manufacturer Resources

Product Specs

Installation Torque:
275
Number Of Conductors:
4
Industry Standard(s):
UL467
Connector Type:
Terminal
CSA Certified:
Y
N (in):
0.63
Bolt Hole Size:
16-Sep
Department:
Electrical
Thickness:
0.31
Type of Plating:
Tin
E - in:
1.75
CULUS:
N
Bolt Hole Size (in):
0.56
UL Listed:
Y
Plated (Yes or No):
Y
Ul Recognized:
N
Rated for Direct Burial:
N
Product Type:
Mechanical Lug
Product Group:
Wire Connectors & Terminals
Product Finish:
Tin-Plated
Configuration:
4-Conductor
Listing:
UL Listed
Standards:
UL467
Product Subgroup:
Lugs & Terminals
Product Material:
Aluminum
list_batch:
BUR-20260917

Burndy K4A29U-4N – Frequently Asked Questions

1) Can Burndy K-Series universal terminal lugs be used on both aluminum and copper conductors?
Yes, the K-Series universal terminal lug is dual rated AL/CU for aluminum and copper stranded conductors. The body is aluminum with a tin plating, which is what lets it land copper without the dissimilar-metal problem you get on a bare aluminum lug. Use an oxide inhibitor per your installation practice on aluminum conductors.
2) What wire sizes will the Burndy K-Series terminal lug take?
It depends which one you order. The range across the K-Series universal lugs runs from #6 AWG up to 750 kcmil: the K4A29U-4N takes #6 AWG-250 kcmil, the K4A31U4N takes #6 AWG-350 kcmil, the K22A36U-2 takes #2-600 kcmil, and the K22A39U2 takes 1/0-750 kcmil. Match the lug to the largest conductor you are landing, not the smallest.
3) What torque do I tighten a Burndy K-Series aluminum terminal lug to?
275 lb-in on the setscrews. That is the specified installation torque for the K-Series universal lug, and it should be set with a calibrated torque wrench or screwdriver rather than by feel. Under-torquing is the usual cause of a hot connection on aluminum; over-torquing damages the conductor.
4) Is the Burndy K-Series terminal lug UL Listed for grounding connections?
It is UL Listed to UL 467, the standard covering grounding and bonding equipment, and it is also CSA Certified. Note it is not UL Recognized-only and does not carry a cULus mark on this record, and it is not rated for direct burial, so keep it inside enclosures, panels, or switchgear rather than in earth contact.
5) Can I land four separate feeders on one Burndy K-Series lug instead of using four single lugs?
Yes. This is a 4-conductor terminal lug, so it takes four conductors into one bolted pad. That is the reason to choose it over four individual one-barrel lugs: one set of bolt holes on the bus instead of four, and far less real estate used inside a crowded panel or MCC section. Each barrel gets its own setscrew torqued to 275 lb-in.
6) Should I use a mechanical setscrew lug like the Burndy K-Series or a compression lug?
A K-Series mechanical terminal lug is the right call when you want to terminate in the field without a hydraulic crimper and die set, and when you may need to re-terminate later. It is a setscrew connector torqued to 275 lb-in on an aluminum body. A compression lug is the better choice where a permanent, non-reworkable termination is specified or where the equipment manufacturer requires one. For grounding and bonding work, this one is Listed to UL 467.
7) Is a tin-plated aluminum lug OK in a damp or corrosive environment?
The tin plating on the K-Series lug is there for corrosion resistance and to keep contact resistance stable over time, which is why it works for copper as well as aluminum. It is not rated for direct burial, though, so it belongs in enclosed equipment such as panels, switchgear, MCCs, and distribution gear rather than buried or in direct earth contact.
8) How much space does a Burndy K-Series 4-conductor lug need on the bus pad?
The published pad dimensions are an E dimension of 1.75 inches and an N dimension of 0.63 inches, with a pad thickness of 0.31 inch and 0.56 inch bolt holes. Use those against your gutter space and phase spacing before committing, since a 4-barrel lug is wider than a single-barrel equivalent.
How fast can I get the Burndy K4A29U-4N 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 K4A29U-4N come with a warranty?
Absolutely. The Burndy K4A29U-4N 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 K4A29U-4N?
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
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