3M 7000031399 Copper Long Barrel Lug 2/0 Awg 35 Kv

Product Description

The 3M 7000031399 is a copper one-hole long-barrel lug rated for use up to 35 kV on copper conductors only. Constructed from one-piece, seamless, high-conductivity copper, this lug delivers reliable electrical termination in high-voltage applications. It features a 3/8-inch stud size, a 0.439-inch inner diameter, and a 2.840-inch barrel length. Sold individually, it is sized for 2/0 AWG conductors. Electricians and high-voltage cable splicers working on underground or overhead distribution systems rely on this style of lug for solid, low-resistance terminations.

This lug is intended for copper conductor terminations in electrical distribution systems rated up to 35 kV. Its long-barrel design provides extended conductor contact area, improving current-carrying capacity and mechanical pull-out strength. Typical applications include utility distribution, industrial power systems, and commercial electrical installations where high-voltage cable terminations require a durable, one-piece copper connector.

Key Features

• Rated up to 35 kV for high-voltage termination applications
• One-piece seamless high-conductivity copper construction
• Long-barrel design increases conductor contact area and pull-out resistance
• 3/8-inch stud size for secure mechanical fastening
• 0.439-inch inner diameter sized for 2/0 AWG copper conductors
• 2.840-inch barrel length for extended termination surface

Compatibility

Designed for use with copper conductors only. Rated for 2/0 AWG conductor size in systems operating up to 35 kV.

Installation Notes

Installation should be performed by a licensed electrician or qualified high-voltage cable splicer in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and verify absence of voltage on the circuit before beginning any termination work. Use the appropriate compression tooling specified for this lug style and conductor size to achieve a proper crimp. Do not use this lug with aluminum conductors.

Technical Specifications

• Conductor Size: 2/0 AWG
• Voltage Rating: Up to 35 kV
• Stud Size: 3/8 inches
• Inner Diameter: 0.439 inches
• Barrel Length: 2.840 inches
• Material: Seamless high-conductivity copper
• Construction: One-piece
• Weight: 0.09 pounds
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000031399