Cable accessory Rittal 4051.718 polypropylene ferrules light blue, 10 mm length, 2.8 mm diameter, pack of 500

Rittal 4051.718 polypropylene ferrules in light blue are a pack of 500 individual end sleeves designed to provide insulated, neat terminations for stranded conductors. Each ferrule is 10 mm long with an outer diameter of 2.8 mm and is made from polypropylene (PP), offering basic insulation and consistent shape for reliable insertion into terminal blocks and connectors. These ferrules are intended for color-coded identification and clean wiring in control cabinets, distribution panels and harness assemblies.

Advantages

The ferrules provide uniform insulation and a defined end for stranded wires, improving contact reliability and reducing the risk of stray strands. Manufactured from polypropylene, they are lightweight and dimensionally stable, facilitating fast, repeatable crimping. The light-blue color supports standardized identification workflows and makes it easier to trace circuits during installation and maintenance.

Suitable for

• Insulated wire end termination for terminal blocks and screw connectors
• Color-coded identification of conductors in panels and harnesses
• Electrical panel wiring and control cabinet installations
• Pre-assembled wire harnesses and repetitive industrial wiring tasks

When it may not be suitable

These polypropylene ferrules are intended for standard low- to medium-voltage electrical and control wiring and provide basic insulation. They are not designed for high-temperature environments, harsh chemical exposure, or applications requiring heat-resistant or high-dielectric materials. For high-current conductors or conductors that require specialized insulation performance, alternative ferrules made from other materials or with different dimensions may be more appropriate.

Key specifications

• Material: polypropylene (PP)
• Color: light blue
• Length: 10 mm
• Outer diameter: 2.8 mm
• Pack quantity: 500 pieces

How to use

Strip the conductor to the appropriate length and insert the stranded wire into the ferrule until the insulation meets the ferrule collar. Use a suitable ferrule crimping tool sized for the ferrule and conductor cross-section to make a secure crimp. After crimping, verify that no stray strands extend beyond the ferrule and that the crimped sleeve fits properly into the terminal or connector. The color-coded ferrules can be applied consistently across multiple conductors to maintain wiring organization.

What to consider before purchase

• Confirm conductor cross-section compatibility with a 10 mm ferrule length and 2.8 mm outer diameter.
• Assess environmental conditions (temperature, chemicals) to ensure polypropylene is suitable.
• Ensure you have the correct crimping tool for polypropylene ferrules and the conductor size in use.

Usage recommendations

Use a dedicated ferrule crimper with the correct die for 2.8 mm ferrules and inspect crimps visually and mechanically. Maintain consistent stripping length and crimp quality to ensure reliable terminations; apply color-coded ferrules systematically to simplify future maintenance and circuit identification.