Why Choose the Cembre 4439220 SM-21 Snap-On Cable Marker?
The Cembre 4439220 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 U, 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 material provides excellent mechanical performance and reliable operation in demanding environments.
Key Advantages
- Professional snap-on cable marker designed for industrial identification.
- Printed letter U 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: 4439220.
- Reference: 17980-U.
- Marker text: U.
- 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 4439220 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.
