3M 7000149320 Heat Shrink Cable Sleeve 1kv 48in

Product Description

The 3M 7000149320 is a heavy-wall, heat-shrinkable cable sleeve designed for electrical splices, connections, and terminations rated up to 1 kV. Constructed from cross-linked polyolefin, the sleeve is highly split-resistant and fast-shrinking, enabling rapid installation in demanding electrical environments. It comes in a 48-inch cut-to-length format with a factory-applied adhesive sealant on the interior wall. The sealant flows during shrink to create a moisture-resistant mechanical seal around the conductor. Licensed electricians and utility splicing crews are the primary installers for this type of sleeve on medium-voltage and low-voltage conductor work.

This cable sleeve is suited for use on conductors ranging from 3/0 AWG to 400 kcmil. It is appropriate for residential service entrance splices, commercial feeder connections, and industrial termination assemblies operating at or below 1 kV. The 48-inch length allows the installer to cut individual pieces to the required length, reducing waste on multi-conductor or varied-length jobs. The integrated adhesive sealant provides environmental protection against moisture and contaminants without requiring a separate mastic or tape wrap.

Key Features

• Rated to 1 kV; UL Listed 486D for 600V (File Number E102356) with CSA certification
• Cross-linked polyolefin construction provides high split resistance and chemical durability
• Factory-applied internal adhesive sealant creates a sealed, moisture-resistant barrier on shrink
• Fast-shrink characteristic reduces installation time compared to standard-wall sleeves
• Cut-to-length 48-inch sleeve accommodates multiple splice lengths from a single piece
• Fits conductors from 3/0 AWG through 400 kcmil

Compatibility

Designed for use on copper and aluminum conductors from 3/0 AWG to 400 kcmil in electrical splice, connection, and termination applications rated up to 1 kV.

Installation Notes

Installation is performed by a licensed electrician. De-energize and lock out the circuit before beginning any splice or termination work, following NFPA 70E arc flash and lockout/tagout procedures. Apply heat evenly along the sleeve using a calibrated heat gun, working from the center outward to prevent air entrapment under the wall. Do not use an open flame torch on polyolefin sleeves, as uneven or excessive heat can char the material and compromise the seal.

Technical Specifications

• Voltage Rating: 1 kV
• UL Listing: UL 486D, 600V, File Number E102356
• Certification: CSA Rated
• Conductor Range: 3/0 AWG to 400 kcmil
• Length: 48 inches
• Wall Type: Heavy-wall
• Material: Cross-linked polyolefin
• Sealant: Factory-applied internal adhesive sealant
• Weight: 1.01 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000149320