Heat Shrink Cable End Cap Radpol KTK 33/15 black — cable termination sleeve 33/15 mm

Radpol KTK 33/15 black heat shrink cable end cap is an insulated termination sleeve designed to provide a secure, weather-resistant seal for exposed cable ends. The sleeve fits an initial cable outer diameter up to 33 mm and shrinks to a finished diameter of approximately 15 mm, creating a close-fitting protective cover that prevents ingress of moisture, dust and contaminants while offering mechanical abrasion resistance and electrical insulation for conductor ends.

Advantages

The heat-shrink construction ensures a tight, durable fit that conforms to the cable profile after heating, providing consistent insulation and strain relief. The black material is UV-resistant and suitable for indoor and outdoor use. Installation is fast and requires only a heat source; after shrinkage the sleeve maintains a protective barrier against environmental factors and mechanical wear.

Suitable for

• Insulation and protection of cut cable ends in industrial installations
• Temporary sealing of cables during maintenance or transport
• Final terminations on low- and medium-voltage power or signal cables where a sealed end is required
• Outdoor cable runs exposed to moisture, dust or UV light

Key specifications

• Initial outer diameter: fits up to 33 mm
• Recovered outer diameter after shrinkage: approx. 15 mm
• Color: black
• Material: cross-linked heat-shrink polymer (provides electrical insulation and abrasion resistance)
• Function: cable end termination and environmental sealing

How to use

Slide the heat-shrink end cap over the prepared cable end so the area to be protected is fully covered. Apply heat evenly using a propane torch, hot-air gun or other suitable heat tool, moving the heat source along the sleeve until the material shrinks uniformly to the cable surface. Allow the sleeve to cool to room temperature before handling to ensure full recovery and adhesion. For best results, remove sharp edges and ensure the cable surface is clean and dry before installation.

Usage recommendations

Use a regulated heat source and follow local safety guidelines when applying heat. For electrical installations, verify compatibility with cable type and voltage rating, and perform any required insulation or continuity checks after installation. Store unused sleeves in a dry, cool place away from direct sunlight to preserve material properties.