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Cembre TCS381X50Y/G 2:1 halogen-free polyolefin heat shrink tubing supplied in a 50 m yellow/green coil for cable insulation, protection and protective earth identification.
The Cembre 2811511 (TCS381X50Y/G) is a premium 2:1 heat shrink tubing designed to provide dependable electrical insulation, mechanical protection and protective earth cable identification for professional electrical installations. Manufactured from durable halogen-free flame-retardant polyolefin, it is ideal for industrial control panels, switchgear, machinery, cable harnesses and OEM applications.
Designed for demanding industrial environments, this heat shrink tubing delivers excellent dielectric strength together with outstanding resistance to abrasion, moisture and chemicals. Its low shrink temperature enables rapid installation while creating a secure protective covering around cables, terminals and electrical connections for long-lasting reliability.
Supplied as a 50 m yellow/green coil, the TCS381X50Y/G is specifically intended for protective earth (PE) conductor identification while providing reliable insulation and cable protection. The tubing complies with recognised international standards including UL 224, IEC 243 and RoHS.
Heat shrink tubing provides durable electrical insulation while protecting conductors against abrasion, moisture, contaminants and mechanical damage. Once heated, the tubing contracts uniformly around cables and connectors to create a secure insulating barrier that improves reliability and extends service life.
The yellow/green colouring provides immediate identification of protective earth conductors, making the tubing particularly suitable for industrial control systems, switchgear, distribution equipment and electrical installations where compliance with wiring identification standards is essential.
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| Height (mm) | 50 mm | |
|---|---|---|
| Device Type | Heat-shrink marker sleeve | |
| Fixing Method | Heat-shrink | |
| Material | Polyolefin | |
| Colour | Green/Yellow | |
| Label / Marker Dimensions (mm) | 381 × 50 mm | |
| Width (mm) | 381 mm | |
| Series | TERMOCOIL TCS | |
| Manufacturer Part Number | 2811511 | |
| Product type | Heat shrink tubing | |
| Shrink ratio | 2:1 | |
| Material | Halogen-free flame-retardant polyolefin | |
| Operating temperature | -55°C to +125°C | |
| Minimum shrink temperature | 70°C | |
| Full shrink temperature | 110°C | |
| Inside diameter (before shrink) | 36.5 mm | |
| Inside diameter (after shrink) | 17.5 mm | |
| Wall thickness (after shrink) | 1.0 mm | |
| Colour | Yellow/Green | |
| Coil length | 50 m | |
| Compliance | UL 224, IEC 243 and RoHS | |
| HS Code | 39173200 | |
| Country of Manufacture | China |
The Cembre 2811511 is designed to insulate, protect and identify protective earth (PE) conductors and electrical cables in professional installations.
The yellow/green colour combination is internationally recognised for protective earth (grounding) conductor identification.
The TCS381X50Y/G features a 2:1 shrink ratio, allowing it to fit securely around a wide range of cable diameters.
The tubing begins shrinking at approximately 70°C and fully recovers at around 110°C.
It is widely used for grounding conductor identification, industrial automation, panel building, machinery wiring and maintenance applications.
Cembre TERMOCOIL heat shrink tubing is trusted by electricians, panel builders, OEM manufacturers and maintenance engineers for dependable cable insulation, protective earth identification and long-lasting electrical performance.
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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...