BKL Electronic 074115 Heat Shrink Tubing 2:1 Black 2.4 mm/1.2 mm 200 m

Electricians and cable assemblers use this BKL Electronic heat shrink tubing to insulate and bundle wires in control cabinets and harnesses. It shrinks from 2.4 mm to 1.2 mm inner diameter at a 2:1 ratio, providing a tight, protective seal over splices and connectors.

Key specifications

• Pre-shrink internal diameter: 2.4 mm
• Post-shrink internal diameter: 1.2 mm
• Shrink ratio: 2:1
• Length: 200 m
• Colour: Black
• Material: Polyolefin
• Operating temperature range: -55°C to +125°C
• Minimum shrink temperature: +90°C
• Dielectric strength: >15 kV/mm
• Flammability rating: VW-1
• Voltage rating: 600 V
• Resistance: UV, chemical, moisture
• Flexibility: Flexible

Why choose it

The polyolefin construction resists UV, chemicals, and moisture, ensuring durable insulation in harsh environments. Its flexibility allows easy installation over irregular shapes, and the 2:1 shrink ratio provides a secure fit on a wide range of wire sizes.

Ideal use cases

• Electrical insulation of splices and terminations
• Cable bundling and strain relief
• Colour coding of wires
• Protection against abrasion and environmental factors

Good to know

Supplied on a 200 m reel, this tubing is suitable for high-volume production. It meets VW-1 flammability rating and has a dielectric strength above 15 kV/mm, making it reliable for electrical applications up to 600 V.