PTC50/21W Partex clip-on marker holder, 21mm, pack 100

Why Choose the Partex PTC50/21W Clip-On Marker Holder?

The Partex PTC50/21W is a durable and practical white clip-on cable marker holder designed for clear identification of electrical cables, conductors and data cables in industrial installations, control panels and network infrastructure. Part of the Partex PTC clip-on marker holder series, it combines a white holder body with a transparent identification pocket, allowing printed cable markers to remain clearly visible and securely positioned.

The convenient clip-on construction enables the holder to be fitted directly onto cables without disconnecting existing wiring. Its secure gripping design uses retaining barbs to help keep the holder in position while allowing readjustment when required. The transparent pocket protects compatible printed identification inserts and supports consistent, professional cable identification throughout electrical and communications installations.

Featuring a 21 mm identification pocket and designed for cables with an outside diameter of approximately 6.0–7.2 mm, the PTC50/21W is particularly suitable for larger electrical conductors and compatible Ethernet network cables, including CAT6E applications. Supplied in a convenient pack of 100 pieces, it provides an efficient marking solution for electricians, panel builders, network installers and maintenance engineers.

Key Advantages

• Convenient clip-on cable marker holder for professional electrical and network cable identification.
• 21 mm transparent label pocket provides space for clearly printed identification.
• Suitable for cables with an outside diameter of approximately 6.0–7.2 mm.
• White holder body provides a clean, professional appearance for cable marking.
• Can be installed before or after cable termination without disconnecting wiring.
• Secure clip-on design with retaining barbs helps prevent unwanted movement.
• Ideal for CAT6E network cables and larger electrical conductors within the specified diameter range.
• Pack of 100 holders suitable for electrical installation and network infrastructure projects.

Key Features

• Partex PTC clip-on marker holder series.
• PTC50/21W model with white holder construction.
• 21 mm transparent identification pocket length.
• 6.0–7.2 mm cable outside diameter compatibility.
• Suitable for approximately 6.0–10.0 mm² BS6231 tri-rated conductors, depending on cable insulation diameter.
• Durable PVC construction for professional cable identification.
• Self-extinguishing material with UL94 V-0 flame-retardant classification.
• Transparent pocket designed to retain and protect printed identification inserts.
• Open, snap-on design suitable for previously connected cables.
• Compatible with Partex PFC042 and PP+046 identification profiles.
• Operating temperature range of −30 to +60 °C.
• Supplied in a pack of 100 pieces.

Reliable Clip-On Cable Identification for Electrical and Network Installations

Clear and consistent cable identification is essential for maintaining organised electrical installations, simplifying network management and supporting efficient maintenance operations. The Partex PTC50/21W provides an effective solution by allowing printed identification labels to be fitted directly onto cables through a transparent protective pocket. Its clip-on design is particularly useful when marking existing wiring or network infrastructure, where conventional closed marker sleeves cannot easily be installed without disconnecting cables.

The Partex PTC series is designed for electricians, automation engineers, network installers and electrical panel manufacturers who require flexible, dependable marking solutions. The PTC50 size accommodates larger cable diameters than the smaller PTC variants, making it suitable for selected power conductors and Ethernet cables. Compatible printed identification inserts can be positioned inside the transparent sleeve, helping improve cable tracing, simplify troubleshooting and maintain professional identification standards throughout industrial and communications systems.

Typical Applications

• Industrial electrical control panels and switchgear assemblies.
• CAT6E and compatible Ethernet network cable identification.
• Structured cabling and communications infrastructure.
• PLC cabinets and industrial automation wiring.
• Electrical distribution equipment and larger conductor identification.
• Machine building and OEM equipment manufacturing.
• Retrofitting identification markers onto existing electrical and data cables.
• Electrical maintenance, network cable tracing and fault diagnosis.