Burndy KK4A36U4N Aluminum Universal Terminal, 4-Hole, 4-Conductor
The Burndy KK4A36U4N Aluminum Universal Terminal is a 4-hole mechanical lug engineered to terminate 2 AWG (Str) through 600 kcmil aluminum or copper stranded conductors. Built from aluminum and Al/Cu rated for use with either conductor type, this terminal features a 1/2" mounting stud with 1.75" stud hole spacing and is secured with 8 screws for a dependable mechanical connection. Tin plated for corrosion resistance, it is UL Listed and CSA Certified for use in commercial and industrial electrical systems.
Key Features
- 4-Hole Mounting Pad: 1/2" mounting stud with 1.75" stud hole spacing for secure busbar and equipment pad connections.
- Durable Aluminum Construction: Al/Cu rated body allows termination of both aluminum and copper conductors.
- Wide Conductor Range: Accepts 2 AWG (Str) through 600 kcmil aluminum or copper stranded conductors.
- Mechanical Connection: Secured with 8 screws and rated to an installation torque of 375 for a reliable, code-compliant termination.
- Tin-Plated Finish: Tin plating enhances corrosion resistance and long-term conductivity.
- Compact Pad Dimensions: 5.63" length x 5.00" width x 0.44" thickness, with a 5.31" pad width and 9/16" (0.56") bolt hole size.
Certifications & Compliance
- UL Listed
- CSA Certified
- Meets UL468A-468B Industry Standards
- RoHS Exempt
Technical Specifications
- Mounting Holes: 4
- Number of Holes: 4
- Number of Conductors: 4
- Aluminum Size (Range): 2 AWG-600 kcmil
- Copper Stranded (Range): 2 AWG-600 kcmil
- Copper Solid Size (Range): N/A
- Bolt Hole Size: 9/16
- Bolt Hole Size (in): 0.56
- Pad Width (in): 5.31
- Length (in): 5.63
- Width (in): 5.00
- Thickness: 0.44
- D - in: 3.34
- N (in): 0.63
- Type of Plating: Tin
- Plated (Yes or No): Y
- Installation Torque: 375
- UL Listed: Y
- UL Recognized: N
- CULUS: N
- CSA Certified: Y
- ROHS Compatible: Exempt
- Rated for Direct Burial: N
- Industry Standards: UL468A-468B
- UPC: 781810601112
Typical Applications
- Commercial and Industrial Electrical Panels
- Switchgear and Busbar Connections
- Grounding and Bonding Applications
- Aluminum-to-Copper Conductor Terminations
- Electrical Distribution Equipment
Why Burndy?
Burndy engineers the KK4A36U4N with an Al/Cu rated aluminum body, tin-plated finish, and a robust 8-screw, 4-hole mechanical connection to deliver a dependable termination for aluminum and copper conductors alike. Backed by UL Listing, CSA Certification, and compliance with UL468A-468B industry standards, this terminal is built for code-compliant performance in demanding commercial and industrial electrical work.
Manufacturer Resources
Spec Sheet
Product Specs
- list_batch:
- BURNDY-20260915
- Wire Size:
- 2 AWG
- Mounting Holes:
- 4
- Plating:
- Tin Plated
- D - in:
- 3.34
- UL Recognized:
- N
- Number of Holes:
- 4
- Rated for Direct Burial:
- N
- Type of Plating:
- Tin
- Bolt Hole Size (in):
- 0.56
- ROHS Compatible:
- Exempt
- Pad Width (in):
- 5.31
- Connector Type:
- Terminal
- Industry Standards:
- UL468A-468B
- Bolt Hole Size:
- 9/16
- Number of Conductors:
- 4
- Length (in):
- 5.63
- UPC:
- 781810601112
- E - in:
- 1.75
- Thickness:
- 0.44
- Installation Torque:
- 375
- Plated (Yes or No):
- Y
- CSA Certified:
- Y
- Width (in):
- 5.00
- UL Listed:
- Y
- Copper Stranded (Range):
- 2 AWG-600 kcmil
- Aluminum Size (Range):
- 2 AWG-600 kcmil
- N (in):
- 0.63
- CULUS:
- N
- Product Type:
- Terminal
- Product Material:
- Aluminum
Burndy KK4A36U-4N – Frequently Asked Questions
1) What wire sizes does the Burndy KK4A36U4N terminal accept?
The KK4A36U4N takes 2 AWG stranded through 600 kcmil, and the same range applies whether you are landing aluminum or stranded copper. It is an Al/Cu rated body, so mixing conductor types across the four ports is acceptable. Solid copper is not part of the accepted range.
2) Will the KK4A36U4N bolt onto my existing 4-hole equipment pad?
Match two numbers before you order. The mounting pad is drilled 4 holes with a 9/16 inch (0.56 inch) bolt hole, and hole spacing is 1.75 inches. That is a 1/2 inch stud pattern. If your busbar or switchgear pad is drilled on a different center spacing or takes a larger stud, this lug will not land flat and you need a different hole pattern.
3) What torque do I set for the KK4A36U4N set screws?
Installation torque is 375 in-lbs, applied to each of the 8 conductor screws. Under-torquing an aluminum termination is the usual cause of a hot connection, so use a calibrated torque wrench rather than feel, and re-check after the conductor has seated.
4) Is the Burndy KK4A36U4N UL Listed for an inspected commercial install?
UL Listed and CSA Certified, and built to the UL468A-468B industry standards for wire connectors. Note it is UL Listed, not merely UL Recognized, which is what an inspector on a commercial or industrial panel job is looking for.
5) Can I bury this aluminum terminal or put it in a below-grade handhole?
No. The KK4A36U4N is not rated for direct burial. It belongs in panels, switchgear, and enclosed distribution equipment. For a buried or submerged splice you need a connector specifically listed for direct burial.
6) How much room do I need in the enclosure for this 4-conductor Burndy lug?
Plan for a body measuring 5.63 x 5.00 x 0.44 inches, with a pad width of 5.31 inches. Two other dimensions off the spec drawing are 3.34 inches (D) and 0.63 inches (N). In a crowded panel the 5 inch footprint is usually the constraint, not the thickness.
7) Is an aluminum-body lug safe to land copper conductors on?
Yes, because the body is Al/Cu rated and tin plated. Tin plating over the aluminum is what keeps the dissimilar-metal interface from corroding and holds conductivity over time, which is why this same lug is spec'd for aluminum-to-copper terminations in distribution gear.
8) I only need to land two conductors. Is this the right Burndy lug?
The KK4A36U4N is a 4-conductor lug on a 4-hole pad, so you would be paying for and mounting capacity you are not using, and the pad footprint is 5.31 inches wide. For a two-conductor run, look for the equivalent Burndy KK series terminal in a 2-conductor configuration with the hole pattern that matches your pad. Where the panel is already drilled 4-hole on 1.75 inch spacing, using this lug and leaving ports empty is fine.
9) What is the exact part number and UPC so I can match a replacement?
Order as Burndy KK4A36U-4N, catalog designation KK4A36U4N, UPC 781810601112. Cross-check the conductor range (2 AWG to 600 kcmil) and the 1.75 inch, 9/16 inch hole pattern against the lug coming out, since the KK family spans several pad drillings.
10) Does the Burndy KK4A36U4N meet RoHS for a facility procurement spec?
It carries RoHS Exempt status. That is the normal classification for heavy electrical connectors of this type rather than a compliance failure, and the full spec sheet is published by the manufacturer if your procurement file needs the document on record.
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Does the Burndy KK4A36U-4N come with a warranty?
Absolutely. The Burndy KK4A36U-4N is backed by a manufacturer’s warranty.
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