3M 7100004538 Aluminum Connector 300 Kcmil 35 Kv

Product Description

The 3M 7100004538 is an aluminum connector rated for use up to 35 kV, designed for splicing copper or aluminum conductors in medium-voltage electrical applications. Sold individually, this connector carries a 300 kcmil conductor size rating and measures 3.120 inches in length, with a 0.650-inch inner diameter and a 1.010-inch outer diameter. The connector barrel includes a pre-applied contact aid compatible with polyethylene and EPR insulations, reducing the steps required for a reliable termination. Dark blue color-coded end caps allow for fast visual identification on the job. Licensed electricians working on medium-voltage distribution systems typically install this fitting.

This connector is suited for medium-voltage splicing work in residential, commercial, and utility distribution environments where conductors up to 300 kcmil must be joined at voltage classes up to 35 kV. The aluminum construction keeps weight low while maintaining conductivity, and the color-coded cap system supports organized, code-compliant installations. The contact aid in the barrel is formulated specifically for compatibility with poly and EPR insulation systems commonly found in underground and direct-burial cable assemblies.

Key Features

• Rated up to 35 kV for medium-voltage conductor splicing
• Accepts copper or aluminum conductors up to 300 kcmil
• Pre-applied contact aid in barrel compatible with poly and EPR insulations
• Dark blue color-coded end caps for quick field identification
• Aluminum connector body for lightweight, conductive performance
• Compact form factor: 3.120 inches long, 0.650-inch ID, 1.010-inch OD

Compatibility

Designed for use with copper or aluminum conductors rated at 300 kcmil in medium-voltage cable splice applications up to 35 kV. Contact aid is specifically compatible with polyethylene and EPR insulation systems.

Installation Notes

Installation should be performed by a qualified electrician familiar with medium-voltage cable splicing procedures and applicable NEC requirements. De-energize, lock out, and tag out the circuit completely before beginning any connector work on medium-voltage conductors. Use only tooling rated and recommended for compression or mechanical connectors at this voltage class. Do not reuse a connector that has been fully seated or crimped.

Technical Specifications

• Voltage Rating: Up to 35 kV
• Conductor Size: 300 kcmil
• Length: 3.120 inches
• Inner Diameter: 0.650 inches
• Outer Diameter: 1.010 inches
• Color Code: Dark Blue
• Conductor Compatibility: Copper or Aluminum
• Insulation Compatibility: Polyethylene, EPR
• Weight: 0.22 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100004538