4609102 Cembre SIGN WS-LB 203902 (50)

4639042 Cembre SIGN WS-LB 203900-BULK (12.5)

Cembre 4639042 WS-LB electrical hazard warning adhesive label with 12.5 mm warning triangle for machinery, switchgear and industrial electrical installations.

SKU: 4639042Alt SKU: 203900-BULKMPN: 4639042
Price
List Price ex VAT
Your Price
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 1615

£0.05

Why Choose the Cembre 4639042 WS-LB Warning Adhesive Label?

The Cembre 4639042 is a premium WS-LB warning adhesive label designed to provide clear and durable identification of electrical hazards on machinery, control panels, switchgear and industrial equipment. Manufactured by Cembre, this industrial safety label features the internationally recognised electrical hazard warning symbol, helping improve workplace safety and equipment identification.

Designed for electrical contractors, panel builders and OEM machine manufacturers, the WS-LB series is manufactured using durable industrial materials with a permanent adhesive for reliable long-term performance. The labels are suitable for demanding industrial environments where clear safety marking is essential.

Featuring a 12.5 mm triangular warning symbol, the Cembre 4639042 is ideal for compact electrical equipment, terminals, control panels and machinery where space is limited. Supplied in bulk packs of 1,615 labels, it is well suited for high-volume production and panel-building applications.

Key Advantages

  • Industrial-grade electrical hazard warning label.
  • 12.5 mm warning triangle for compact applications.
  • Ideal for machinery, switchgear and electrical panels.
  • Improves workplace safety and hazard awareness.
  • Permanent adhesive for long-lasting identification.
  • Manufactured by Cembre for professional industrial applications.

Key Features

  • Cembre WS-LB warning adhesive series.
  • Manufacturer part number: 4639042.
  • Alternative reference: 203900-BULK.
  • Electrical hazard warning symbol.
  • 12.5 mm triangular label.
  • Durable industrial adhesive construction.
  • Suitable for industrial electrical equipment.
  • Supplied in packs of 1,615 labels.

Reliable Safety Identification for Industrial Equipment

Warning labels play a vital role in identifying hazardous electrical areas and helping maintenance personnel and operators recognise potential risks. The Cembre WS-LB range delivers professional-quality hazard identification for industrial environments.

These labels are widely used by electrical contractors, panel builders and OEM manufacturers to provide consistent safety marking across industrial installations.

Typical Applications

  • Electrical control panels.
  • Industrial switchgear.
  • Machine control cabinets.
  • OEM machinery manufacturing.
  • Industrial electrical installations.
  • Safety and hazard identification.

Technical Specifications

Series WS-LB Warning Adhesive Labels
Alternative SKU 203900-BULK
Product type Warning adhesive label
Warning symbol Electrical hazard
Triangle size 12.5 mm
Application Machinery, switchgear, control panels and electrical equipment
Pack quantity 1,615 labels
HS Code 39199080
Country of Manufacture Italy

Frequently Asked Questions

What is the Cembre 4639042 used for?

It is used to identify electrical hazards on machinery, electrical equipment, switchgear and industrial control panels.

What size is the warning symbol?

The warning triangle measures 12.5 mm.

Where can this warning label be applied?

It is suitable for machinery, electrical panels, switchgear, control cabinets and industrial installations.

How many labels are supplied?

The product is supplied in bulk packs containing 1,615 labels.

Who typically uses these labels?

They are commonly used by electrical contractors, panel builders, machine manufacturers and maintenance engineers.

Trusted by Electrical Professionals Worldwide

Cembre industrial identification products are trusted worldwide by electrical contractors, OEM manufacturers and panel builders for reliable safety marking and professional equipment identification.

● 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.

 Tick  Priority sourcing and supply support

 Tick  Flexible payment terms for qualifying organisations

 Tick  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. 

Can you help specify the correct part?

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.

Do you have stock for urgent orders?

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.

What are your delivery times and costs?

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.

What about warranties, returns and faulty items?

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

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

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.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

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...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

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...