Why Choose the Partex PTC40/21W Clip-On Marker Holder?
The Partex PTC40/21W is a durable and practical white clip-on cable marker holder designed for clear, reliable identification of electrical wires, network cables and conductors in industrial installations, electrical control panels and communication systems. As part of the Partex PTC clip-on marker holder series, it provides a convenient solution for identifying cables without disconnecting existing wiring.
Featuring a 21 mm transparent label pocket, the PTC40/21W securely accommodates compatible printed identification inserts while keeping cable markings clearly visible. Its open clip-on construction allows quick installation onto connected wires and cables, making it particularly useful for electrical maintenance, retrofitting and new installations. The holder is manufactured from durable PVC and incorporates strong retaining clips to help maintain its position on the cable.
Designed for cables with an outside diameter of 5.0–6.2 mm, the Partex PTC40/21W is particularly suitable for CAT5 and CAT6 Ethernet cables, as well as compatible electrical conductors. Its white body provides a clean, professional appearance, while the transparent pocket protects the printed identification insert. Supplied in a convenient pack of 100 holders, it offers an efficient cable identification solution for electrical contractors, panel builders and network installation engineers.
Key Advantages
- Practical clip-on cable marker holder for electrical and network cable identification.
- 21 mm transparent label pocket keeps printed identification inserts visible and protected.
- Suitable for cable diameters of 5.0–6.2 mm.
- White PVC construction provides a durable and professional identification solution.
- Ideal for identifying CAT5 and CAT6 Ethernet cables.
- Open clip-on design allows installation before or after cable termination.
- Strong retaining clips securely grip the cable while allowing repositioning when required.
- Compatible with suitable Partex printed marker inserts for customised cable identification.
- Pack of 100 pieces provides a convenient quantity for electrical and network installation projects.
Key Features
- Partex PTC40 series clip-on cable marker holder.
- PTC40/21W white variant with transparent identification pocket.
- 21 mm marker pocket length for printed identification inserts.
- 5.0–6.2 mm compatible cable outside diameter.
- Suitable for approximately 4.0–6.0 mm² conductors, depending on cable insulation diameter.
- PVC material for durable electrical and network cable identification.
- Operating temperature range of -30 to +60 °C.
- Open snap-on profile for quick installation onto connected cables.
- Strong retaining clips help secure the holder against unwanted movement.
- Compatible with Partex PFC042 and PP+046 identification inserts.
- 9.3 mm holder height and 6.9 mm holder width.
- 4.6 mm label pocket face width for compatible printed markers.
- Supplied in packs of 100 holders.
Technical Specifications
- Manufacturer: Partex
- Series: PTC40 Clip-On Marker Holders
- Model: PTC40/21W
- Alternative product reference: PTC40-WHI-21
- Product type: Clip-on cable marker holder with transparent label pocket
- Colour: White
- Material: PVC
- Marker pocket length: 21 mm
- Compatible cable diameter: 5.0–6.2 mm
- Approximate conductor cross-section: 4.0–6.0 mm²
- Holder height: 9.3 mm
- Holder width: 6.9 mm
- Label pocket face width: 4.6 mm
- Operating temperature: -30 to +60 °C
- Mounting type: Clip-on / snap-on cable mounting
- Installation: Suitable for connected and unterminated wires
- Compatible marker inserts: Partex PFC042 and PP+046
- Suitable cable types: CAT5, CAT6 and compatible electrical cables
- Pack quantity: 100 pieces
Reliable Cable Identification for Electrical and Network Installations
Accurate cable identification is essential for maintaining organised, efficient and easily serviceable electrical and communication systems. The Partex PTC40/21W clip-on marker holder provides a convenient method of displaying cable numbers, circuit references, network identifiers and equipment identification without requiring permanent markings directly on the cable insulation.
The PTC40 series is particularly beneficial for electrical panel manufacturers, automation engineers, network installers and maintenance teams. Its open design allows identification holders to be fitted to existing connected cables, reducing the need for wiring alterations during maintenance or modifications. The transparent label pocket accommodates compatible printed inserts, helping identification remain legible during routine inspection, testing and troubleshooting.
The 21 mm label pocket provides space for longer identification references than shorter marker holder variants, making it useful for detailed cable numbering and network identification. When used with suitable Partex identification inserts, the PTC40/21W supports consistent marking throughout electrical cabinets, structured cabling installations and industrial communication networks. Selecting the correct holder according to the cable's outside diameter ensures a secure fit and dependable identification.
Typical Applications
- CAT5 and CAT6 Ethernet cable identification.
- Structured cabling and network installations.
- Electrical control panels and distribution cabinets.
- Industrial automation and PLC wiring systems.
- Machine building and OEM electrical installations.
- Industrial Ethernet and communication networks.
- Electrical maintenance, repair and retrofit projects.
- Terminal block wiring and conductor identification.
- Data cabinets, network infrastructure and communication equipment.
- Building services and electrical installation projects.
