3M 7000031381 Copper Long-barrel Connector 3/0 Awg 35 Kv

Product Description

The 3M 7000031381 is a copper long-barrel compression connector designed for use on copper conductors only, rated for applications up to 35 kV. Identified by its orange color coding for 3/0 AWG, this connector measures 3.130 inches in length with an inner diameter of 0.490 inches and an outer diameter of 0.617 inches. It is constructed from one-piece, seamless, high-conductivity copper, providing a reliable, low-resistance connection. Electricians working on medium-voltage distribution systems install this connector where a durable, corrosion-resistant barrel splice is required on copper cable runs.

This connector is suited for medium-voltage electrical installations where copper-to-copper conductor splicing is required. Typical applications include utility distribution work, industrial power systems, and any installation calling for a long-barrel connector at the 3/0 AWG conductor size and up to 35 kV system voltage. The orange color coding allows for fast field identification of conductor size during installation and inspection.

Key Features

• Rated for systems up to 35 kV
• Accepts 3/0 AWG copper conductors
• One-piece, seamless, high-conductivity copper construction
• Orange color coding for quick AWG identification in the field
• Long-barrel design provides increased contact surface area for a secure compression splice

Compatibility

Designed for use on copper conductors only at 3/0 AWG. For use in systems rated up to 35 kV. Not suitable for aluminum conductors.

Installation Notes

Installation should be performed by a qualified, licensed electrician following applicable NEC requirements and local codes for medium-voltage conductor splicing. De-energize and verify the absence of voltage on all conductors before beginning work. Use the correct compression tool and die set specified for the connector barrel diameter to ensure a proper crimp. Do not use this connector on aluminum conductors.

Technical Specifications

• Voltage Rating: Up to 35 kV
• Conductor Size: 3/0 AWG
• Color Code: Orange
• Length: 3.130 inches
• Inner Diameter: 0.490 inches
• Outer Diameter: 0.617 inches
• Material: Seamless high-conductivity copper
• Weight: 0.13 pounds
• Sold As: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000031381