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Copper compression lug, green barrel, one-hole tongue

3M

3M 31068 One-Hole Compression Lug 600 kcmil 1/2 in Stud Long Barrel

SKU CH-ZVKY-NZ350

One-hole copper compression lug for 600 kcmil stranded wire, 1/2 in stud, long barrel, seamless crimp, UL and CSA listed

  • TypeTraffic & Parking Lot
  • Accepts up to 600 kcmil stranded copper for high-capacity runs
  • 1/2 in stud with 1.69 in tongue fits standard hardware
  • Long barrel and seamless copper construction ensure reliable crimp termination
  • Die code 22 and .92 in barrel ID guide correct tool selection
  • UL Listed and CSA Certified for 35 kV AC applications

31068 One-Hole Compression Lug

The 3M 31068 is a copper one-hole compression lug designed for terminating stranded copper conductors up to 600 kcmil. It features a long barrel and a straight tongue with a 1/2 in stud hole. The connector is UL Listed and CSA Certified for use up to 35 kV AC.

Check conductor size and tooling

Verify that the stranded copper wire does not exceed 600 kcmil and matches the barrel inside diameter of .92 in. Ensure your crimp tool accepts die code 22, identified by the green colour code on the lug. The lug has no inspection hole, so visual confirmation of full insertion is not possible.

Crimp termination for high-voltage copper runs

The seamless barrel and single-hole tongue suit straight bus-to-stud connections in panels or equipment rated to 35 kV AC. The 1.69 in tongue width sets the bolt pattern spacing. RoHS compliance supports regulated projects, while the lack of an inspection hole means installers must rely on tool calibration for joint integrity.

Highlights

  • Accepts up to 600 kcmil stranded copper for high-capacity runs
  • 1/2 in stud with 1.69 in tongue fits standard hardware
  • Long barrel and seamless copper construction ensure reliable crimp termination
  • Die code 22 and .92 in barrel ID guide correct tool selection
  • UL Listed and CSA Certified for 35 kV AC applications

Specifications

Brand3M
TypeTraffic & Parking Lot

Questions about this item

Does the 3M 31068 lug come with any crimping dies or hardware, or must they be purchased separately?

The lug itself is supplied alone. You will need a compatible crimping tool and die code 22, plus a 1/2 in mounting bolt, washer and nut, none of which are included.

How do I choose between the available barrel lengths for a 600 kcmil copper conductor?

This part is offered only in the long-barrel version, which provides extra crimp area for 600 kcmil stranded copper. No short-barrel alternative exists for this model.

What does the 35 kV AC rating mean when the lug is installed in a real panel?

The 35 kV AC maximum voltage rating indicates the insulation level the connection can withstand after a proper crimp with die code 22 on 600 kcmil copper, per UL and CSA listings.

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