3M 7000031509 Heat Shrink Medium-wall Cable Sleeve 25 Ft

Product Description

The 3M 7000031509 is a medium-wall heat shrink cable sleeve engineered for electrical insulation and protection in demanding environments. Built from cross-linked polyolefin, this sleeve delivers strong resistance to abrasion, corrosion, and chemical exposure. It ships as a 25 ft reel in an uncoated configuration, making it suitable for field-cut applications across a range of conductor sizes from 1/4 AWG through 4/0 AWG. The sleeve shrinks quickly with applied heat, reducing installation time and minimizing the need for extensive technician training. Electrical professionals and industrial maintenance crews rely on this product for reliable, long-term cable jacketing in both new installations and retrofit work.

This sleeve is designed for applications where cables require durable re-jacketing or phase identification insulation, including bus bar insulation and phase rejacketing in electrical panels, switchgear, and distribution equipment. The medium-wall construction provides greater flexibility compared to heavy-wall alternatives, making it easier to work with in tight spaces or complex cable routing situations. It accommodates conductors ranging from 1/4 AWG to 4/0 AWG, covering a broad range of residential and commercial electrical service applications.

Key Features

• Cross-linked polyolefin construction provides split resistance and long-term durability
• Medium-wall profile offers greater flexibility than heavy-wall sleeve variants
• Fast-shrinking material reduces installation time with minimal training required
• Uncoated 25 ft reel format allows field cutting to required lengths
• Resistant to abrasion, corrosion, and a wide range of chemicals
• Suitable for bus bar insulation and phase rejacketing applications

Compatibility

Designed for use with conductors ranging from 1/4 AWG to 4/0 AWG. Typical applications include bus bar insulation and phase rejacketing in electrical distribution and switchgear installations.

Installation Notes

Installation is performed by licensed electricians in accordance with applicable NEC requirements. De-energize and lock out all circuits before applying the sleeve to any conductor or bus bar. Apply even heat using an appropriate heat gun, working progressively along the sleeve to achieve uniform shrinkage. Avoid direct flame sources, which can damage the sleeve material or create uneven shrink.

Technical Specifications

• Conductor Range: 1/4 AWG to 4/0 AWG
• Material: Cross-linked polyolefin
• Reel Length: 25 ft
• Wall Type: Medium-wall, uncoated
• Weight: 2.9 pounds
• UPC: 00051135034842

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000031509