Heat-shrink end cap Radpol KTK 10/4 black — cable termination cap

Radpol heat-shrink end cap KTK 10/4 in black is a thermal cable termination cap designed to insulate, seal, and mechanically protect exposed conductor ends. The sleeve is manufactured to shrink when heated, providing a snug fit over cable ends and creating reliable electrical insulation and basic strain relief. It is intended for use in electrical and telecommunication installations where a compact, protected cable finish is required.

Advantages

The thermally activated material conforms closely to cable contours, ensuring consistent coverage and reducing risk of moisture ingress. Its black outer appearance offers UV resistance and a discreet finish for visible installations. The end cap provides both electrical insulation and mechanical protection in a single component, simplifying termination work and reducing the need for additional sealing materials.

Suitable for

• Insulating and sealing the cut end of single conductors and small multi-conductor cables
• Field terminations in electrical distribution and telecommunication networks
• Temporary or permanent protection of cable ends during installation and storage

Key specifications

• Type: Heat-shrink end cap for cable termination
• Diameter range (pre-shrink): suitable for 10 mm outer diameter nominal with 4 mm inner or core accommodation
• Color: black
• Function: Electrical insulation, moisture exclusion, basic strain relief
• Activation: Shrinks when exposed to heat from a heat gun or equivalent heat source

How to use

Slide the heat-shrink end cap over the prepared cable end so that it fully covers the conductor or exposed termination. Apply heat evenly with a heat gun or other controlled heat source, moving the nozzle around the cap to achieve uniform shrinkage and a tight seal. Allow the sleeve to cool and inspect the fit to ensure complete coverage and adhesion along the cable end.

Usage recommendations

For reliable results, use a regulated heat gun and maintain recommended safe distances and temperatures to avoid damaging the cable insulation. Ensure the cable surface is clean and dry before application. Do not use open flames or uncontrolled heat sources. Store the heat-shrink end caps in a cool, dry place away from direct sunlight prior to use.