4439208 Cembre SNAP SM-21 17980-O (WH)

4439208 Cembre SNAP SM-21 17980-O (WH)

Cembre 4439208 SM-21 snap-on cable marker with letter O identification, white POM construction for 35 mm² to 70 mm² cables.

SKU: 4439208Alt SKU: 17980-OMPN: 4439208
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List Price £1.17 ex VAT
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Manufacturer Lead Time

Sold in packs of 50

£0.9328

Why Choose the Cembre 4439208 SM-21 Snap-On Cable Marker?

The Cembre 4439208 is a professional SM-21 snap-on cable marker designed for fast, reliable and permanent identification of electrical cables and conductors in industrial, commercial and automation installations. As part of the trusted Cembre cable identification system, it provides an efficient marking solution for electricians, panel builders and maintenance engineers requiring clear conductor organisation.

The marker features a white POM acetylic resin construction with the printed identification character O, allowing cables to be quickly recognised during installation, inspection and maintenance operations. Its snap-on design enables simple fitting directly onto compatible cables without requiring adhesives or additional fixing components.

Designed for cable sizes from 35 mm² to 70 mm² (approximately 2 AWG to 2/0 AWG), the Cembre SM-21 marker is suitable for larger electrical conductors used in control panels, machinery wiring, power distribution systems and industrial equipment. The durable halogen-free POM material provides excellent mechanical performance and reliable operation in demanding environments.

Key Advantages

  • Professional snap-on cable marker designed for industrial identification.
  • Printed letter O identification for clear conductor recognition.
  • Suitable for 35 mm² to 70 mm² cable sizes.
  • High-visibility white colour improves cable identification accuracy.
  • Halogen-free POM construction for reliable industrial performance.
  • Fast installation without adhesives or additional mounting hardware.

Key Features

  • Cembre SM-21 snap-on cable marker series.
  • Part number: 4439208.
  • Reference: 17980-O.
  • Marker text: O.
  • Colour: White (RAL 9003).
  • Material: POM Acetylic Resin.
  • Cable range: 35 mm² to 70 mm².
  • Snap-on mounting system for efficient cable marking.
  • Resistant to oil, grease, chemicals and atmospheric agents.

Reliable Cable Identification for Electrical Installations

Cable identification is essential for improving electrical safety, simplifying maintenance and reducing troubleshooting time. The Cembre SM-21 snap-on marker system provides an effective method for organising conductors and maintaining accurate identification within industrial wiring environments.

The Cembre 4439208 combines quick installation with durable construction, making it suitable for control cabinets, machinery wiring, electrical distribution equipment and automation systems where dependable cable management is required.

Typical Applications

  • Industrial control panels and electrical cabinets.
  • Machine wiring and automation systems.
  • Power distribution installations.
  • Electrical maintenance applications.
  • OEM equipment manufacturing.
  • Industrial cable management systems.

Technical Specifications

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Colour White
Device Type Snap-on cable marker
Application Cable / wire ID
Compatible With Pre-printed (no printer needed)
Fixing Method Snap-on
Material Acetal (POM)
Series SM-21
Product type Snap-on cable marker
Manufacturer part number 4439208
Printed identification O
Colour White
Material POM Acetylic Resin
Cable size range 35 mm² – 70 mm²
Cable outside diameter range 11 mm – 15 mm
Operating temperature range -40°C to 106°C
Halogen free Yes
ROHS compliant Yes
Packaging 50 pieces
HS Code 39269097
Country of Manufacture Germany

Frequently Asked Questions

What is the Cembre 4439208 used for?

The Cembre 4439208 is used for identifying electrical cables and conductors with a durable snap-on marker system.

What identification character is printed on this marker?

This cable marker is printed with the character O for clear conductor identification.

What cable sizes are compatible with this marker?

The SM-21 marker is designed for cables between 35 mm² and 70 mm².

What material is the Cembre SM-21 marker made from?

The marker is manufactured from durable POM acetylic resin material designed for reliable industrial use.

How is the cable marker installed?

The marker uses a snap-on design that allows quick fitting directly onto compatible cables.

Trusted by Electrical Professionals Worldwide

Cembre cable marking solutions are trusted by electrical installers, machine builders and industrial engineers to provide reliable identification, improved organisation and efficient maintenance of electrical systems.