Cembre TBS24X20BU halogen-free heat shrink tubing with 2:1 shrink ratio, 20 metre coil and blue polyolefin construction for cable insulation and neutral conductor identification.
SKU:2811187Alt SKU:TBS24X20BUMPN:2811187
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Why Choose the Cembre TBS24X20BU Heat Shrink Tubing?
The Cembre 2811187 (TBS24X20BU) is a premium-quality heat shrink tubing engineered to provide reliable electrical insulation, cable protection and wire identification in industrial, commercial and OEM electrical installations. Manufactured from high-performance halogen-free, flame-retardant cross-linked polyolefin, it delivers excellent durability, flexibility and long-term performance in demanding environments.
Designed for electricians, panel builders and maintenance engineers, the TBS24X20BU features a 2:1 shrink ratio, ensuring a secure fit around conductors, terminals and cable assemblies. Its blue finish is ideal for neutral conductor identification while providing dependable insulation and environmental protection.
With a 2.5 mm internal diameter before shrinking, 1 mm recovered diameter and a 20 metre dispenser coil, the Cembre 2811187 is perfectly suited to industrial control panels, switchgear, machinery, automation equipment and commercial electrical installations.
Key Advantages
Premium halogen-free heat shrink tubing.
2:1 shrink ratio for secure cable insulation.
Blue colour for neutral conductor identification.
Excellent resistance to abrasion, moisture, oils and chemicals.
Flame-retardant construction certified to UL 224 VW-1.
Wide operating temperature range from -55°C to +125°C.
Reliable Cable Protection for Industrial Applications
Heat shrink tubing provides electrical insulation, strain relief and mechanical protection for cables and wire assemblies. The Cembre TBS24X20BU protects conductors against abrasion, moisture, chemicals and environmental contaminants while providing clear identification of neutral wiring in professional electrical installations.
Its excellent dielectric strength, flexibility and flame-retardant construction make it an ideal solution for OEM manufacturers, electrical contractors and maintenance engineers working across industrial automation, switchgear, machinery and commercial electrical systems.
Typical Applications
Industrial control panels.
Neutral conductor identification.
Switchgear and distribution equipment.
Industrial automation systems.
Cable harnesses and wire bundling.
Machinery manufacturing and maintenance.
Commercial electrical installations.
Technical Specifications
Series
TBS Heat Shrink Tubing
Manufacturer Part Number
2811187
Product Type
Heat Shrink Tubing
Material
Cross-linked Halogen-Free Polyolefin
Colour
Blue
Shrink Ratio
2:1
Operating Temperature
-55°C to +125°C
Minimum Shrink Temperature
70°C
Full Shrink Temperature
110°C
Inner Diameter Before Shrink
2.5 mm
Inner Diameter After Shrink
1 mm
Wall Thickness After Shrink
0.45 mm
Coil Length
20 m
Flammability
UL 224 VW-1
RoHS Compliant
Yes
Halogen Free
Yes
HS Code
39173200
Country of Manufacture
China
Frequently Asked Questions
What is the Cembre 2811187 used for?
The Cembre 2811187 is used to insulate, protect and identify electrical cables, particularly neutral conductors in industrial and commercial electrical installations.
What shrink ratio does the TBS24X20BU provide?
The tubing features a 2:1 shrink ratio, allowing it to shrink securely around cables and electrical terminations.
Why is the tubing blue?
The blue colouring is commonly used for identifying neutral conductors, improving cable identification and installation safety.
Is this tubing halogen free?
Yes. It is manufactured from halogen-free, flame-retardant cross-linked polyolefin and is fully RoHS compliant.
Where is this product typically installed?
It is widely used in industrial control panels, switchgear, machinery, automation systems and commercial electrical equipment.
Trusted by Electrical Professionals Worldwide
Cembre heat shrink tubing is trusted by electricians, panel builders, OEM manufacturers and automation engineers for dependable cable insulation, long-lasting protection and professional-quality electrical installations.
Series
TBS Heat Shrink Tubing
Manufacturer Part Number
2811187
Product Type
Heat Shrink Tubing
Material
Cross-linked Halogen-Free Polyolefin
Colour
Blue
Shrink Ratio
2:1
Operating Temperature
-55°C to +125°C
Minimum Shrink Temperature
70°C
Full Shrink Temperature
110°C
Inner Diameter Before Shrink
2.5 mm
Inner Diameter After Shrink
1 mm
Wall Thickness After Shrink
0.45 mm
Coil Length
20 m
Flammability
UL 224 VW-1
RoHS Compliant
Yes
Halogen Free
Yes
HS Code
39173200
Country of Manufacture
China
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...