Cembre TBS254X5BR 2:1 halogen-free polyolefin heat shrink tubing with 26 mm pre-shrink diameter, 12.5 mm recovered diameter and 5 metre coil for electrical insulation and cable protection.
£31.20
The Cembre TBS254X5BR is a premium-quality 2:1 heat shrink tubing engineered to provide reliable electrical insulation, mechanical protection and cable identification in industrial and commercial electrical installations. Manufactured from durable halogen-free flame-retardant polyolefin, it protects cables, joints and terminations from abrasion, moisture, chemicals and environmental contaminants while maintaining excellent electrical insulation performance.
Designed for electricians, panel builders, OEMs and maintenance engineers, the TBS254X5BR delivers consistent shrink performance for larger cable assemblies and electrical terminations. Its flexible construction ensures fast installation while providing long-lasting protection in demanding environments.
With a 26 mm pre-shrink internal diameter, 12.5 mm recovered diameter and supplied in a 5 metre coil, the TBS254X5BR is ideal for insulating large conductors, cable joints and wire bundles used throughout industrial automation and power distribution systems.
Heat shrink tubing provides dependable insulation by shrinking tightly around cables, connectors and electrical terminations when heat is applied. This creates a durable protective barrier that enhances electrical safety, provides strain relief and helps extend the service life of cable assemblies.
The Cembre Thermoblock range is widely used throughout industrial automation, switchgear manufacturing and electrical maintenance where dependable insulation, durability and long-term reliability are essential.
| Series | Thermoblock |
|---|---|
| Manufacturer Part Number | 2811251 |
| Product type | Heat shrink tubing |
| Material | Halogen-free polyolefin |
| Shrink ratio | 2:1 |
| Colour | Brown |
| Internal diameter (pre-shrink) | 26 mm |
| Internal diameter (post-shrink) | 12.5 mm |
| Wall thickness (post-shrink) | 0.9 mm |
| Coil length | 5 m |
| Minimum shrink temperature | 70°C |
| Full shrink temperature | 110°C |
| Operating temperature | -55°C to +125°C |
| Dielectric strength | 15 kV/mm |
| Flammability | UL 224 VW-1 |
| Compliance | RoHS |
| HS Code | 39173200 |
| Country of Manufacture | China |
It is used to insulate, protect and identify larger electrical cables, cable joints and terminations in industrial and commercial electrical installations.
The tubing features a 2:1 shrink ratio, allowing it to fit securely around a wide range of cable sizes.
The tubing operates reliably between -55°C and +125°C.
Yes. It is manufactured from halogen-free polyolefin and complies with RoHS requirements.
It is widely used in electrical control panels, industrial machinery, switchgear, cable harnesses and power distribution equipment requiring dependable cable protection.
Cembre Thermoblock heat shrink tubing is trusted by electricians, panel builders and maintenance engineers for reliable insulation, cable protection and long-term performance across demanding industrial applications.
● Service Agreements
Credit Accounts
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.
● frequently asked questions
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.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...