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Five 48-inch black heavy-wall heat-shrink tubes, 3:1 ratio

3M

3M ITCSN-0800 48" Black 5 pcs heavy-wall heat shrink tube 3:1

SKU CH-XWBS-B4K1A

Heavy-wall heat-shrink tubing shrinks 3:1 from .8 in to .2 in with .11 in wall thickness for 8 AWG to 1/0 AWG wires

  • Heavy-wall cross-linked polyolefin resists abrasion, acids, alkalis and UV
  • 3:1 shrink ratio reduces .8 in ID to .2 in for 8 AWG to 1/0 AWG wire
  • 48 in length per piece with .11 in recovered wall thickness
  • Operates from -67 °F to 230 °F with 250 °F minimum shrink temperature
  • Pack of 5 black rigid tubes, adhesive-free and flame-retardant rated

3M ITCSN-0800 heavy-wall tubing

This 3M heat-shrink tube is a heavy-wall, cross-linked polyolefin sleeve designed for electrical insulation and mechanical protection. Each piece measures 48 inches long and comes in a pack of five black lengths. The tubing suits electricians and maintenance crews who need rugged, abrasion-resistant coverings for wire sizes from 8 AWG to 1/0 AWG. It operates across a temperature range of -67 to 230 degrees F.

Suited for thick-cable repairs, not thin leads

The 3:1 shrink ratio reduces the inside diameter from .8 inches to .2 inches with a recovered wall thickness of .11 inches, making it ideal for sealing and protecting larger conductors. Buyers who need adhesive-lined tubing for environmental sealing or flame-retardant grades for regulated installations should look elsewhere. It is also unsuitable for very small-gauge wiring where the expanded diameter is too large.

Heat-gun installation, watch the minimum temperature

A heat gun or torch applies the 250-degree F minimum shrink temperature evenly around the tube until it fully recovers. The rigid material resists kinking but requires steady heat to avoid uneven shrinkage or cold spots. Overheating can scorch the polyolefin, while insufficient heat leaves the tube loose on the conductor. Ensure the work area is ventilated.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $211.99
Pricier than about 80% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand name3M

Questions about this item

What wire sizes will the 0.8 in inner diameter cover before shrinking?

The tubing fits 8 AWG to 1/0 AWG conductors before heat is applied.

Will the rigid cross-linked polyolefin crack when bent around existing cable bundles?

The material is abrasion-resistant and rated from -67 to 230 degrees F, so it stays flexible in service.

How do I know the 3:1 shrink ratio has completed on a 48 in length?

Heat until the inside diameter reaches 0.2 in and wall thickness measures 0.11 in at a minimum of 250 degrees F.

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