HellermannTyton 380-03004 Heat Shrink Tubing Assortment, 3:1, Black, 130 Pieces

This heat shrink tubing assortment stands out by combining seven common diameters in a single black polyolefin kit, each piece cut to a uniform 100 mm length. The 3:1 shrink ratio grips irregular shapes more tightly than 2:1 tubing, making it a practical choice for repairs and harness work where a snug, durable seal is required.

Highlights

• 130 pieces across seven diameters: 1.5/0.5, 3.0/1.0, 4.5/1.5, 6.0/2.0, 9.0/3.0, 12.0/4.0, 18.0/6.0 mm (supplied/recovered)
• 3:1 shrink ratio for secure coverage on connectors and splices
• Cross-linked polyolefin material, black colour
• Operating temperature range -55 °C to +135 °C
• Self-extinguishing per UL94 V-2

In daily use

The assortment covers small signal wires up to larger cable bundles. Shrinkage starts at +90 °C and full recovery occurs at +110 °C, so a standard heat gun is sufficient. The tubing is not adhesive-lined; for moisture sealing, a separate adhesive or sealed connector is recommended.

Full specifications

• Shrink ratio: 3:1
• Colour: Black
• Number of pieces: 130
• Material: Cross-linked polyolefin
• Operating temperature range: -55 °C to +135 °C
• Minimum shrink temperature: +90 °C
• Full recovery temperature: +110 °C
• Dielectric strength: 20 kV/mm
• Flammability rating: UL94 V-2 (self-extinguishing)
• Voltage rating: 600 V
• Adhesive lined: No
• Assortment contents: 1.5/0.5 mm, 3.0/1.0 mm, 4.5/1.5 mm, 6.0/2.0 mm, 9.0/3.0 mm, 12.0/4.0 mm, 18.0/6.0 mm (supplied/recovered)
• Assortment contents length: 100 mm per piece

Final note

A versatile black heat shrink assortment for electrical insulation, strain relief, and bundling in maintenance and prototyping.