HellermannTyton HIS-3 Heat Shrink Tubing 18/6 mm, 4 m, Black, 3:1 308-31803

The HellermannTyton HIS-3 heat shrink tubing in black offers a 3:1 shrink ratio, reducing from a supplied diameter of 18 mm to a recovered diameter of 6 mm. This allows it to accommodate a wide range of cable and connector sizes, providing a secure, professional finish for insulation, strain relief, and bundling. The 4-meter length is supplied as a single piece, ideal for continuous runs or cutting to size for multiple smaller jobs.

Highlights

• 3:1 shrink ratio for versatile application over connectors and irregular shapes
• Supplied diameter 18 mm, recovers to 6 mm
• 4 m continuous length in one piece
• Made from polyolefin, offering good electrical insulation and mechanical protection
• Operating temperature range from -55 °C to +125 °C
• UV resistant for outdoor use
• Black colour for a neat, professional appearance

In daily use

This tubing is suitable for insulating splices, protecting cables from abrasion, and providing strain relief. The 3:1 shrink ratio means it can slide over larger connectors and still shrink down tightly onto smaller cables, making it a flexible choice for maintenance and repair work. The polyolefin material is flexible and resistant to common chemicals, ensuring long-term durability in demanding environments.

Full specifications

• Product type: Heat shrink tubing
• Series: HIS-3
• Supplied diameter: 18 mm
• Recovered diameter: 6 mm
• Shrink ratio: 3:1
• Length: 4 m
• Recovered wall thickness: 0.9 mm
• Material: Polyolefin (PO)
• Colour: Black
• Operating temperature range: -55 °C to +125 °C
• Minimum shrink temperature: +90 °C
• Full recovery temperature: +120 °C
• Dielectric strength: 20 kV/mm
• Flammability rating: UL224 VW-1
• UV resistant: Yes
• Chemical resistant: Good
• Packaging quantity: 1 piece

Final note

A reliable heat shrink solution for professional electrical and mechanical protection, offering a high shrink ratio and robust performance across a wide temperature range.