3M 7000031369 Copper Barrel Connector 4 Awg 35 Kv Gray

Product Description

The 3M 7000031369 is a copper standard barrel connector rated for use on copper conductors in high-voltage applications up to 35 kV. Designed for 4 AWG conductors, this connector measures 1.75 inches in length with an inner diameter of 0.247 inches. It is constructed from one-piece, seamless, high-conductivity copper, delivering reliable electrical continuity at the joint. Electricians and utility technicians install this connector where a durable, low-resistance splice is required in medium-voltage cable systems. The gray color coding provides quick visual identification during installation and inspection.

This barrel connector is suited for medium-voltage electrical installations where copper-to-copper conductor splicing is required. Typical applications include underground distribution, switchgear connections, and other systems operating up to 35 kV. The seamless copper construction eliminates internal seam weaknesses that can cause resistance buildup or failure under load. It is appropriate for both new construction and maintenance work on copper conductor systems.

Key Features

• Rated for conductor systems up to 35 kV
• Accepts 4 AWG copper conductors with a 0.247-inch inner diameter
• One-piece, seamless construction for consistent electrical conductivity
• High-conductivity copper material minimizes resistance at the splice
• Gray color coding for easy field identification
• Designed for use on copper conductors only

Compatibility

Designed for use on copper conductors only. Compatible with 4 AWG copper conductor systems rated up to 35 kV. Refer to applicable wiring specifications and system voltage ratings before installation.

Installation Notes

This connector should be installed by a licensed electrician or qualified utility technician following applicable NEC and local electrical code requirements. De-energize and lock out the circuit before beginning any splicing work. Use the appropriate compression tool specified for the connector size and conductor gauge to achieve a proper crimp. Do not use this connector on aluminum conductors.

Technical Specifications

• Conductor Size: 4 AWG
• Voltage Rating: Up to 35 kV
• Inner Diameter: 0.247 inches
• Length: 1.75 inches
• Material: High-conductivity copper
• Construction: One-piece, seamless
• Color: Gray
• Weight: 0.03 pounds
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000031369