General
Shrink ratio	3:1
Internal adhesive	thermoplastic
Colour	Black
Packaging	spool box
Compatibility	HIS-Service-Station
Application area	Electrical engineering, installation
Fire resistant properties	very good
Diameter	6 sizes from 3 mm to 24 mm

The HISA-6/2-PO-X-BK heat shrink tube from HellermannTyton is a thin-walled, flexible 3:1 heat shrink tube with integrated inner adhesive, specifically developed for applications in electrical and installation technology. It is supplied in a dispenser box that enables dust-free and orderly storage as well as easy handling. The tube is available in black and is particularly suitable for smaller requirements, with the small reels ensuring practical use. The dispenser box is compatible with the HIS-Service-Station, supporting work simplification in professional use.

Applications

The heat shrink tube is used for insulation, identification, and mechanical protection of cables and wires. It is particularly suitable for applications requiring high flexibility, low weight, and space saving. Typical uses include electrical engineering, mounting of connectors, covering cable bundles, or protecting sensors and other electrical components. The 3:1 shrink ratio allows adaptation to a wider range of diameters, increasing versatility.

Functions and Features in Detail

The heat shrink tube features a thermoplastic inner adhesive that activates when heated, creating a tight, adhering bond between the tube and the underlying cable or wire. This adhesive protects the wire from external influences such as moisture, dust, or mechanical stress and also provides strain relief to reduce tension in the cable. The thin-walled construction ensures high flexibility and low weight, making handling easier and saving space. The dispenser box offers hygienic and organized storage, preventing contamination and damage.

Technology Explained Simply

The 3:1 shrink ratio means the tube shrinks to one-third of its original diameter when heated. This allows the tube to be used in a larger size, adapting to the actual cable diameter. Heating is typically done with a gas hot air blower, ensuring even and controlled heating. The inner adhesive melts during heating and forms a solid, tight bond after cooling, encapsulating and protecting the wire. The excellent fire protection properties reduce the risk of flame spread in case of fire.

Compatibility and Accessories

The heat shrink tube is available in 6 sizes, with inner diameters from 3 mm to 24 mm, with the variant described here supplied in black. It is compatible with the HIS-Service-Station, which simplifies processing. As an accessory, the gas hot air blower CHG900-PA-GY (article number 391-90010) is recommended for the shrinking process. A transparent variant of the heat shrink tube (HISA-6/2-PO-X-CL, article number 308-10603) is also available if visual inspection of the underlying wire is desired.

Installation and Mounting

Installation is done by sliding the heat shrink tube onto the cable or wire to be protected. The tube is then evenly heated with a gas hot air blower until it shrinks and the inner adhesive activates. Heating should be slow and even to avoid uneven shrinking or damage to the cable. The dispenser box facilitates pulling off the required length and ensures clean storage.

Operational Advantages

The heat shrink tube provides reliable mechanical and electrical insulation, even under difficult environmental conditions. Strain relief provided by the inner adhesive extends the service life of wires, especially in applications with frequent movement or mechanical stress. Easy handling and orderly storage in the dispenser box increase efficiency in daily work. The excellent fire protection properties contribute to safety, particularly in installations exposed to increased fire risk. Availability in various sizes and colors allows flexible adaptation to different requirements.