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

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

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

The practical 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 maintain positioning while allowing adjustment when required. The transparent pocket protects compatible printed identification inserts and supports consistent, professional cable marking throughout electrical and data installations.

Featuring a 21 mm identification pocket and designed for cables with an outside diameter of 6.0–7.2 mm, the PTC50/21Y is particularly suitable for larger electrical conductors and compatible Ethernet network cables, including CAT6E installations. Supplied in a convenient pack of 100 pieces, it provides a practical identification 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 identification pocket provides space for printed cable labels.
• Suitable for cables with an outside diameter of 6.0–7.2 mm.
• Yellow holder body provides a distinctive identification option for organised cable marking.
• Can be installed before or after cable termination without disconnecting existing wiring.
• Secure clip-on construction with retaining barbs helps prevent unwanted movement.
• Suitable for CAT6E and compatible Ethernet cables within the specified diameter range.
• Pack of 100 holders for electrical installation, maintenance and network infrastructure projects.

Key Features

• Partex PTC clip-on marker holder series.
• PTC50/21Y model with yellow 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, subject to actual cable insulation diameter.
• Durable PVC construction for professional electrical identification.
• 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.
• 10.8 mm holder height and 8.2 mm holder width.
• 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 PTC50/21Y 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 communications 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 and dependable marking solutions. The PTC50 size accommodates larger cable diameters than smaller PTC variants, making it suitable for selected power conductors and Ethernet cables. The yellow holder body provides a distinctive marking option, while compatible printed identification inserts help improve cable tracing, simplify troubleshooting and maintain professional identification standards.

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.