3M 7000031401 Copper Long Barrel Lug 4/0 Awg 35 Kv

Product Description

The 3M 7000031401 is a one-hole long-barrel copper lug rated for use up to 35 kV on copper conductors only. Constructed from one-piece, seamless, high-conductivity copper, this lug is designed for reliable, low-resistance terminations in medium-voltage electrical applications. It features a 0.548-inch inner diameter and an overall length of 3.320 inches, with a 0.5-inch stud size. The purple color coding identifies the 4/0 AWG conductor size at a glance. Licensed electricians and utility technicians performing medium-voltage cable terminations will find this lug suited to demanding installation environments.

This long-barrel lug is intended for copper conductor terminations in medium-voltage systems up to 35 kV, including utility, industrial, and commercial power distribution applications. The extended barrel length provides greater contact surface area and improved compression performance. It is sold individually and carries a minimum order quantity of 10 units per purchase, making it appropriate for project-quantity procurement by electrical contractors and utility crews.

Key Features

• Rated up to 35 kV for medium-voltage copper conductor terminations
• One-piece seamless construction in high-conductivity copper
• 0.548-inch inner diameter accommodates 4/0 AWG copper conductors
• 3.320-inch barrel length maximizes compression contact area
• 0.5-inch stud hole for secure mechanical connection
• Purple color coding for fast 4/0 AWG identification in the field

Compatibility

Designed for use with copper conductors only at 4/0 AWG in medium-voltage systems up to 35 kV. Refer to the conductor and compression tool manufacturer specifications to confirm die selection and tool compatibility before installation.

Installation Notes

Installation should be performed by a licensed electrician qualified for medium-voltage work in accordance with applicable NEC and local codes. De-energize and verify absence of voltage on the conductor before beginning termination. Use a compression tool and die set matched to the lug barrel dimensions and conductor size. Do not use on aluminum conductors.

Technical Specifications

• Conductor Size: 4/0 AWG
• Voltage Rating: Up to 35 kV
• Inner Diameter: 0.548 inches
• Barrel Length: 3.320 inches
• Stud Size: 0.5 inches
• Material: Seamless high-conductivity copper
• Color Code: Purple
• Weight: 0.15 pounds
• Sold As: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000031401