3M 7000031382 Copper Long-barrel Connector 4/0 Awg

Product Description

The 3M 7000031382 is a copper long-barrel connector rated up to 35 kV, designed for use with 4/0 AWG copper conductors in medium-voltage electrical applications. Constructed from one-piece, seamless, high-conductivity copper, this connector delivers reliable electrical continuity without the weak points introduced by seamed or multi-piece designs. It measures 3.380 inches in length with an inner diameter of 0.548 inches and an outer diameter of 0.687 inches. The purple color coding aids in quick AWG identification during installation. Licensed electricians and utility technicians working on medium-voltage cable terminations and splices are the primary installers of this connector.

This long-barrel connector is suited for medium-voltage distribution systems operating at up to 35 kV. It is intended exclusively for copper conductor applications, making it appropriate for power distribution, utility, and industrial wiring assemblies where 4/0 AWG copper cable is specified. The seamless barrel construction is well suited to compression termination methods common in both underground and overhead distribution work.

Key Features

• Rated up to 35 kV for medium-voltage conductor terminations
• One-piece seamless construction from high-conductivity copper
• Sized for 4/0 AWG copper conductors only
• 3.380-inch barrel length supports full compression engagement
• Purple color coding for fast AWG identification in the field
• 0.548-inch inner diameter and 0.687-inch outer diameter for precise fit

Compatibility

Designed for use with 4/0 AWG copper conductors only. Suitable for medium-voltage cable assemblies rated up to 35 kV. Not intended for use with aluminum conductors.

Installation Notes

Installation should be performed by a qualified electrician or licensed utility technician in accordance with the NEC and any applicable local codes for medium-voltage work. De-energize and verify absence of voltage on the conductor before beginning any termination work. A calibrated compression tool appropriate for the barrel diameter and conductor size must be used to achieve a proper crimp. Do not use this connector on aluminum conductors.

Technical Specifications

• Voltage Rating: Up to 35 kV
• Conductor Size: 4/0 AWG
• Conductor Type: Copper only
• Barrel Length: 3.380 inches
• Inner Diameter: 0.548 inches
• Outer Diameter: 0.687 inches
• Material: High-conductivity seamless copper
• Color: Purple
• Weight: 0.16 pounds
• Sold As: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000031382