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Copper compression lug, long barrel, two-hole tongue, black color code

Burndy

Burndy Long Barrel CU Lug 2 Hole 750 kcmil

SKU CH-NFKR-3XXY0

Copper compression lug with long barrel, two 1/2-inch stud holes on 1.75-inch centres, rated for 750 kcmil stranded copper at 35 kV and 194°F

  • TypeCommercial
  • Rated for 35 kV high-voltage systems
  • Handles 750 kcmil copper conductors
  • Two-hole 1/2 in stud pattern on 1.75 in centres
  • Crimp termination with 24 die code for secure joints
  • UL 486A-486B and CSA certified for code compliance

Copper compression lug for 750 kcmil wire

This long-barrel copper compression lug accepts a single 750 kcmil stranded copper conductor and provides two mounting holes spaced 1.75 inches apart. It is built for commercial electrical installations that require a reliable crimp termination on large-gauge wire. The straight tongue measures 1.91 inches wide and fits 1/2-inch studs.

Thermal and electrical ratings

The lug is rated for continuous operation up to 194 degrees Fahrenheit and a maximum voltage of 35 kV. Copper construction provides low-resistance current paths without active cooling or moving parts. No inspection hole is present, so visual verification of the crimp must be performed from the barrel ends.

Sustained load behaviour

Under continuous rated current the copper body and crimp joint maintain stable temperatures within the 194-degree limit. The long barrel distributes mechanical stress over a larger area, reducing creep during extended thermal cycling. The connection meets CSA certification and UL 486A-486B requirements for sustained-duty applications.

Highlights

  • Rated for 35 kV high-voltage systems
  • Handles 750 kcmil copper conductors
  • Two-hole 1/2 in stud pattern on 1.75 in centres
  • Crimp termination with 24 die code for secure joints
  • UL 486A-486B and CSA certified for code compliance

Specifications

BrandBurndy
TypeCommercial

Questions about this item

How do I install the 750 kcmil lug using the 24 die code, and what step is commonly missed?

Use a hydraulic crimper with the 24 die to compress the long barrel fully; the step often missed is verifying the die code matches the lug before each crimp.

What maintenance or replacement will the copper lug need after installation?

No routine maintenance is required; inspect the crimp and copper surfaces periodically for corrosion or overheating and replace if discoloration or loose strands appear.

What limit appears first when the lug runs continuously at high current?

The 194 Degrees F maximum operating temperature is the first limit reached under sustained load before the 35 kV voltage rating becomes a concern.

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