Burndy KA44U2N Aluminum Univer...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$32.09
Burndy KA44U2N Aluminum Universal 2-Hole Terminal Lug

Burndy KA44U2N Aluminum Universal 2-Hole Terminal Lug

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Model: KA40U2N

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

$32.09
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Burndy KA44U2N Aluminum Universal 2-Hole Terminal Lug, Dual Rated Al/Cu

The Burndy KA44U2N is an aluminum universal terminal lug engineered for 500-1000 kcmil conductors, featuring a 2-hole mounting pad with a 1/2" stud size and 1.75" stud hole spacing. This dual-rated Al/Cu lug secures the conductor with a single set screw and carries a tin-plated finish for enhanced corrosion resistance. UL Listed and CSA Certified, the KA44U2N delivers a dependable mechanical termination for demanding electrical connections.

Key Features

  • Conductor Range: Accommodates 500-1000 kcmil aluminum or copper conductors for heavy-duty terminations.
  • Durable Construction: Aluminum body construction paired with a tin-plated finish resists corrosion and maintains a reliable electrical connection.
  • 2-Hole Mounting: Two mounting holes with a 1/2" stud size and 1.75" stud hole spacing simplify bus bar and equipment pad connections.
  • Mechanical Termination: A single set screw provides a secure mechanical connection method, rated to 550 installation torque.
  • Dual Rated Al/Cu: Rated for use with both aluminum and copper conductors, adding installation flexibility.
  • Compact Dimensions: Overall length of 4.75", pad width of 1.77", and thickness of 0.50" fit standard equipment pads.

Certifications & Compliance

  • UL Listed
  • CSA Certified
  • Complies with UL468A-468B industry standards
  • RoHS Compatible (Exempt)

Technical Specifications

  • Mounting Holes: 2
  • Number of Holes: 2
  • Termination Method: Mechanical
  • Number of Conductors: 1
  • Bolt Hole Size: 1/2"
  • Bolt Hole Size (in): 0.50
  • Stud Hole Spacing (N): 0.63 in
  • Pad Width (in): 1.77
  • Length (in): 4.75
  • Thickness: 0.50
  • D (in): 3.03
  • Copper Stranded (Range): 500 kcmil-1000 kcmil
  • Aluminum Size (Range): 500 kcmil-1000 kcmil
  • Copper Solid Size (Range): N/A
  • Type of Plating: Tin
  • Plated: Y
  • Installation Torque: 550
  • UL Listed: Y
  • UL Recognized: N
  • CSA Certified: Y
  • CULUS: N
  • Industry Standards: UL468A-468B
  • ROHS Compatible: Exempt
  • Rated for Direct Burial: N
  • UPC: 781810370506

Typical Applications

  • Switchgear and Switchboard Connections
  • Panelboard and Busbar Terminations
  • Grounding and Bonding Connections
  • Industrial Power Distribution Equipment
  • Motor Control Center Wiring

Why Burndy?

Burndy engineers its mechanical connectors to meet stringent UL468A-468B standards, and the KA44U2N's UL Listed and CSA Certified construction reflects that commitment to code-compliant performance. With a dual Al/Cu rating and a corrosion-resistant tin-plated finish, this terminal lug is built to deliver dependable, long-lasting connections for professional electrical installations.

Manufacturer Resources

Spec Sheet

Product Specs

Mounting Holes:
2
Plating:
Tin Plated
Termination Method:
Mechanical
N (in):
0.63
Number Of Conductors:
1
D - in:
3.03
UPC:
781810370506
Ul Recognized:
N
Pad Width (in):
1.77
Rated for Direct Burial:
N
Type of Plating:
Tin
Connector Type:
Terminal
Industry Standard(s):
UL468A-468B
Bolt Hole Size (in):
0.50
Copper Stranded (Range):
500 kcmil-1000 kcmil
Number Of Holes:
2
CSA Certified:
Y
Plated (Yes or No):
Y
Length (in):
4.75
Width (in):
1.75
Thickness:
0.50
UL Listed:
Y
E - in:
1.75
Bolt Hole Size:
1/2
ROHS Compatible:
Exempt
CULUS:
N
Installation Torque:
550
Aluminum Size (Range):
500 kcmil-1000 kcmil
Product Type:
Mechanical Lug
Product Material:
Aluminum
Product Size:
1/2"
list_batch:
BUR-20260916
Department:
Electrical
Product Subgroup:
Lugs & Terminals
Product Group:
Wire Connectors & Terminals

Burndy KA40U2N – Frequently Asked Questions

1) Will the Burndy KA44U2N lug accept 750 kcmil copper as well as aluminum?
Yes. The KA44U2N is dual rated, with a conductor range of 500 kcmil to 1000 kcmil on both aluminum and stranded copper, so 750 kcmil copper falls inside the range. One conductor per lug, held by set screw.
2) What is the difference between Burndy KA40U2N and KA44U2N?
They are the two wire-size options in the same 2-hole universal aluminum lug family: KA40U2N is the 800 kcmil size and KA44U2N is the 1000 kcmil size. Pick by the conductor you are landing.
3) Does this Burndy lug bolt to a 1/2 inch stud pad with two holes?
It does. The KA44U2N has a 2-hole mounting pad with 1/2 inch bolt holes, so it lands on standard 1/2 inch equipment studs or bus bar drilling. The pad measures 1.77 inches wide and 0.50 inch thick, with an overall lug length of 4.75 inches.
4) What torque should the set screw on the Burndy KA44U2N be tightened to?
Installation torque for this lug is 550 inch-pounds on the set screw. Use a torque wrench or torque screwdriver rather than feel; under-torquing a 500 to 1000 kcmil mechanical termination is the usual cause of a hot connection.
5) Is this Burndy terminal lug UL Listed for inspection on a commercial switchgear job?
Yes, UL Listed and CSA Certified, built to the UL468A-468B standards for mechanical wire connectors. That covers panelboard, switchboard, and motor control center terminations where the inspector wants a listed connector on the conductor.
6) Can I use this aluminum lug in a direct burial or underground splice?
No. The KA44U2N is not rated for direct burial. Keep it inside enclosures, gear, or above-grade terminations and use a connector specifically listed for direct burial where the connection goes in the ground.
7) Why choose a tin-plated aluminum body lug for a copper conductor termination?
The tin plating over the aluminum body is what makes the dual Al/Cu rating workable: it separates the aluminum barrel from copper strands and from the bus it bolts to, which limits galvanic corrosion at the joint. Useful in damp or industrial environments and in grounding and bonding work where the connection has to stay low resistance for years.
8) Is one of these lugs enough per conductor, or do I need a compression lug instead?
One KA44U2N terminates one conductor, and it is a mechanical set screw lug, so no crimp tool or die set is needed, just a torque wrench. For a three-phase plus neutral feeder in 1000 kcmil you would order four. Go to a compression lug instead only where the spec or the gear specifically calls for a compression connection.
How fast can I get the Burndy KA40U2N 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 KA40U2N come with a warranty?
Absolutely. The Burndy KA40U2N 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 KA40U2N?
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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