3M 7000031390 Copper One Hole Lug 35kv 2 Awg

Product Description

The 3M 7000031390 is a copper one-hole lug designed for terminating copper conductors in medium-voltage electrical systems rated up to 35 kV. Manufactured as a single-piece, seamless construction from high-conductivity copper, this lug provides a reliable, low-resistance termination point for 2 AWG conductors. It features a 5/16-inch stud size, a 0.307-inch inner diameter, and an overall length of 1.970 inches. Licensed electricians and utility technicians working on medium-voltage distribution, switchgear, and cable termination assemblies are the primary installers of this component.

This lug is suited for medium-voltage applications where copper conductor terminations are required at ratings up to 35 kV. It is intended strictly for use with copper conductors and is not rated for aluminum wiring. Typical install scenarios include cable termination in pad-mounted transformers, switchgear cabinets, and medium-voltage panel assemblies in both commercial and utility environments. Its one-piece seamless body eliminates seam failure points common in fabricated lugs.

Key Features

• Single-piece seamless copper body for consistent conductivity and mechanical strength
• Rated for systems up to 35 kV medium-voltage applications
• Compatible with 2 AWG copper conductors only
• 5/16-inch stud hole for standard hardware fitment
• 0.307-inch inner diameter and 1.970-inch overall length for precise conductor seating

Compatibility

Designed for use with 2 AWG copper conductors only in medium-voltage systems rated up to 35 kV. Not suitable for aluminum conductors.

Installation Notes

Installation should be performed by a licensed electrician following applicable NEC and local code requirements for medium-voltage terminations. De-energize and verify absence of voltage on all conductors before installation. Use the appropriate crimping tool rated for the lug size and conductor gauge to achieve a proper compression termination. Do not use this lug on aluminum conductors.

Technical Specifications

• Voltage Rating: Up to 35 kV
• Conductor Size: 2 AWG
• Stud Size: 5/16 inches
• Inner Diameter: 0.307 inches
• Overall Length: 1.970 inches
• Material: High-conductivity copper
• Construction: One-piece seamless
• Weight: 0.04 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000031390