HellermannTyton HIS-PACK 3:1 Heat Shrink Tubing, 12 mm Supplied ID, 4 mm Recovered ID, 10 m, Black, Cross-linked Polyolefin, 300-30120

Electrical installers and maintenance technicians rely on this HellermannTyton HIS-PACK heat shrink tubing to insulate and protect cable splices, terminations, and bundles. The 3:1 shrink ratio allows it to slide over connectors and irregular shapes, then recover tightly for a secure, professional finish.

Key specifications

• Supplied inner diameter: 12.0 mm
• Recovered inner diameter: 4.0 mm
• Length: 10 m
• Colour: Black
• Material: Cross-linked polyolefin
• Shrink ratio: 3:1
• Operating temperature: -55 °C to +135 °C
• Minimum shrink temperature: +90 °C
• Dielectric strength: 20 kV/mm
• Flammability rating: UL94 V2
• Halogen-free: Yes
• Recovered wall thickness: 0.80 mm

Why choose it

This tubing provides reliable electrical insulation and mechanical protection in demanding environments. Its cross-linked polyolefin construction offers good UV resistance and a wide operating temperature range, making it suitable for both indoor and outdoor applications.

Ideal use cases

• Insulating electrical connections and splices
• Bundling and protecting wire harnesses
• Mechanical protection against abrasion and chemicals
• Colour coding cables for identification

Good to know

Supplied in a dispenser box for convenient storage and dispensing. The tubing meets RoHS, UL, and CSA approvals.