Cembre TCS381X50GY 2:1 halogen-free grey heat shrink tubing with 36.5 mm pre-shrink diameter and 50 m coil for electrical insulation and cable protection.
SKU:2811589Alt SKU:TCS381X50GYMPN:2811589
Price on applicationContact us for pricing and availability.
Why Choose the Cembre TCS381X50GY Heat Shrink Tubing?
The Cembre TCS381X50GY (2811589) is a premium 2:1 heat shrink tubing designed to provide dependable electrical insulation, cable protection and cable identification for industrial and commercial electrical installations. Manufactured from halogen-free cross-linked polyolefin (PO-X), it offers excellent resistance to abrasion, moisture, chemicals and environmental ageing while maintaining outstanding flexibility and long-term durability.
Part of the trusted Cembre TERMOCOIL range, this grey heat shrink tubing is widely used by electrical contractors, panel builders, OEM machine manufacturers and maintenance engineers to protect cable joints, wire terminations and electrical components while providing a clean, professional finish.
With a 36.5 mm pre-shrink internal diameter, 17.5 mm recovered internal diameter and supplied in a convenient 50 m coil, the TCS381X50GY is ideal for switchgear, industrial control panels, automation equipment and general electrical wiring applications.
Key Advantages
Professional 2:1 heat shrink tubing for electrical insulation.
Grey finish for cable identification and organised wiring systems.
Excellent resistance to abrasion, moisture and chemicals.
Provides dependable insulation and mechanical cable protection.
Suitable for industrial, commercial and OEM electrical applications.
Key Features
Cembre TERMOCOIL series.
Manufacturer Part Number: TCS381X50GY.
SKU: 2811589.
2:1 shrink ratio.
36.5 mm internal diameter before shrinking.
17.5 mm recovered internal diameter.
50 m coil length.
Operating temperature range of -55°C to +125°C.
UL VW-1 flame-retardant material.
RoHS compliant and halogen-free.
Reliable Cable Protection for Professional Installations
Heat shrink tubing provides dependable insulation while protecting conductors, cable joints and electrical terminations from abrasion, moisture and environmental contaminants. The Cembre TERMOCOIL range delivers consistent shrink performance, excellent dielectric strength and long-term reliability for demanding industrial environments.
The grey finish makes the TCS381X50GY ideal for cable identification, organised wiring systems and professional control panel manufacture while maintaining excellent electrical insulation and mechanical protection.
Typical Applications
Electrical control panels.
Industrial automation systems.
Cable joint insulation.
Wire and cable identification.
Switchgear and distribution equipment.
OEM machinery manufacturing.
Electrical maintenance and repair.
Technical Specifications
Tick the specs you need, then view products that match.
Height (mm)
50 mm
Device Type
Heat-shrink marker sleeve
Fixing Method
Heat-shrink
Material
Polyolefin
Colour
Grey
Label / Marker Dimensions (mm)
381 × 50 mm
Width (mm)
381 mm
Series
TERMOCOIL
Manufacturer Part Number
2811589
Product type
Heat shrink tubing
Material
Cross-linked polyolefin (PO-X)
Shrink ratio
2:1
Pre-shrink internal diameter
36.5 mm
Recovered internal diameter
17.5 mm
Recovered wall thickness
1.0 mm
Colour
Grey
Coil length
50 m
Operating temperature
-55°C to +125°C
Minimum shrink temperature
70°C
Full recovery temperature
110°C
Flammability
UL VW-1
Compliance
UL 224, IEC, RoHS
HS Code
39173200
Country of Manufacture
China
Frequently Asked Questions
What is the Cembre TCS381X50GY used for?
It is used to insulate, protect and identify electrical cables, wire terminations and connectors in industrial and commercial electrical installations.
What is the shrink ratio?
The tubing provides a 2:1 shrink ratio, reducing from 36.5 mm to approximately 17.5 mm after shrinking.
Why is the tubing grey?
The grey finish is ideal for cable identification, organised wiring systems and applications requiring colour coding.
Is this heat shrink tubing halogen-free?
Yes. It is manufactured from halogen-free cross-linked polyolefin and complies with RoHS requirements.
What operating temperatures does it support?
The tubing operates continuously between -55°C and +125°C, begins shrinking at approximately 70°C and reaches full recovery at around 110°C.
Trusted by Electrical Professionals Worldwide
Cembre TERMOCOIL heat shrink tubing is trusted by electrical contractors, panel builders and industrial engineers for dependable cable insulation, protection and identification across professional electrical installations.
Height (mm)
50 mm
Device Type
Heat-shrink marker sleeve
Fixing Method
Heat-shrink
Material
Polyolefin
Colour
Grey
Label / Marker Dimensions (mm)
381 × 50 mm
Width (mm)
381 mm
Series
TERMOCOIL
Manufacturer Part Number
2811589
Product type
Heat shrink tubing
Material
Cross-linked polyolefin (PO-X)
Shrink ratio
2:1
Pre-shrink internal diameter
36.5 mm
Recovered internal diameter
17.5 mm
Recovered wall thickness
1.0 mm
Colour
Grey
Coil length
50 m
Operating temperature
-55°C to +125°C
Minimum shrink temperature
70°C
Full recovery temperature
110°C
Flammability
UL VW-1
Compliance
UL 224, IEC, RoHS
HS Code
39173200
Country of Manufacture
China
No documents available for this product.
UK delivery
Delivery options
Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.
This productLead time on request
Please contact us for a delivery time before you order
Standard delivery
£8 ex VAT · free over £200
UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Collect from our showroom
Mon–Fri, 8am–5pm
Order and pay online, then collect from our showroom.
Please allow 15–30 minutes after ordering for us to prepare your order.
Northern Ireland, ROI & export
Priced at checkout
We deliver to Northern Ireland, the Republic of Ireland and overseas.
Delivery is calculated at checkout based on your destination.
Orders with mixed availability
Shipped complete
If part of your order is on a lead time, we hold it and send everything together.
Need the in-stock items sooner? Ask us and we can split the delivery.
Business customer returns
Returns & order support
Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.
Stocked items
Request within 30 days
Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.
Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.
Faulty or damaged items
Tell us as soon as possible
Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.
We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.
Made-to-order items
Manufacturer approval needed
Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.
This does not affect claims for faulty goods or items that do not meet the agreed specification.
Let’s get your return sorted.
Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.
The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.
● 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.
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
Trusted Manfacturers
● 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.
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