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Copper compression lug with two holes, blue colour code, straight narrow tongue, long barrel, inspection hole visible

Burndy

Burndy 2-Hole Narrow Tongue Long Barrel Copper Compression Lug 350-500 kcmil

SKU CH-3ZNM-4WJR2

Two-hole narrow-tongue long-barrel copper compression lug for 350-500 kcmil stranded copper wire, 3/8 in stud spacing, 1 in hole centres, .96 in tongue width, blue die code 19.

  • TypeCommercial
  • Handles heavy loads with 350–500 kcmil copper range
  • Secure dual-hole mounting on 1 in centres
  • Blue colour code and die 19 speed up correct crimp selection
  • UL 486A-486B and CSA certifications confirm code compliance
  • Long barrel and inspection hole give reliable, inspectable connections

Copper Compression Lug for 350-500 kcmil

This Burndy lug connects stranded copper conductors from 350 kcmil up to 500 kcmil in commercial electrical systems. The straight, narrow tongue has two mounting holes spaced one inch apart and a blue colour code for die identification. It is CSA certified and UL listed to standards 486A-486B for reliable terminations.

Two-hole mounting and long barrel for secure crimps

The dual-hole pattern distributes mechanical stress across both fasteners while the long barrel provides extra crimp surface for a solid joint. An inspection hole lets the installer verify full conductor insertion before energising the circuit. The lug accepts a 3/8 inch stud and requires a compatible 19 die for proper compression.

Rated for sustained operation at 194 °F and 35 kV

Copper construction maintains conductivity during continuous high-current loads without the relaxation seen in softer alloys. The lug meets the 35 kV maximum voltage rating under prolonged thermal cycling up to 194 degrees Fahrenheit. It is not suited for aluminium conductors or wire sizes outside the 350-500 kcmil range.

Highlights

  • Handles heavy loads with 350–500 kcmil copper range
  • Secure dual-hole mounting on 1 in centres
  • Blue colour code and die 19 speed up correct crimp selection
  • UL 486A-486B and CSA certifications confirm code compliance
  • Long barrel and inspection hole give reliable, inspectable connections

Specifications

BrandBurndy
TypeCommercial

Questions about this item

What is the maximum operating temperature for this lug?

The lug is rated for a maximum operating temperature of 194 Degrees F.

How much heat does this copper lug generate during continuous use?

As a passive copper connector, it does not generate heat itself; temperature rise depends on the current load and crimp quality.

What crimp die code is required to install this connector?

This lug requires a die code 19 for proper crimp termination.

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