Cable accessory Rittal 4051.716 light blue polypropylene ferrules 0.75 mm², 8 mm length, 2.8 mm diameter, pack of 500

Rittal 4051.716 light blue polypropylene ferrules are a bulk pack of 500 insulated end sleeves sized for 0.75 mm² conductors. Each ferrule is molded from polypropylene (PP) and measures 8 mm in length with an outer diameter of 2.8 mm. These ferrules are intended to provide a secure crimp termination for stranded conductors, enabling neat, consistent insertion into terminal blocks and improving mechanical and electrical contact stability in control cabinets, distribution boards and industrial electrical panels.

Advantages

The polypropylene construction offers chemical resistance and dimensional stability while remaining lightweight. Color-coding in light blue supports quick conductor identification and standard organization in wiring assemblies. With consistent dimensions and a smooth inner bore, these ferrules facilitate accurate conductor insertion and repeatable crimp quality when used with a compatible crimping tool. Supplied in a pack of 500, they support larger wiring projects and reduce the need for frequent restocking.

Suitable for

• Insulated termination of 0.75 mm² stranded copper conductors
• Crimping for PCB and terminal block connections in control cabinets
• Electrical distribution panels, switchgear and industrial wiring harnesses
• Maintenance and retrofit work where consistent, repeatable terminations are required

When it may not be suitable

These ferrules are specifically sized for 0.75 mm² conductors; they are not suitable for larger or significantly smaller conductor cross-sections. They are made of polypropylene and are intended for electrical insulation and strain distribution rather than as a load-bearing mechanical fastener. For applications requiring high-temperature nylon materials, special plating, or fully uninsulated terminations, select a product designed for those conditions.

Key specifications

• Conductor cross-section compatibility: 0.75 mm²
• Material: polypropylene (insulating sleeve)
• Length: 8 mm
• Outer diameter: 2.8 mm
• Color: light blue (for identification and coding)
• Pack quantity: 500 pieces

How to use

Strip the conductor to the appropriate length so that the bare strands match the ferrule length. Insert the stripped strands fully into the ferrule barrel, ensuring no stray strands are outside the ferrule. Use a suitable insulated ferrule crimping tool to apply a single, square crimp to the barrel, following the tool manufacturer’s instructions for the 0.75 mm² ferrule size. After crimping, verify the mechanical retention and that the insulated sleeve covers the termination area before inserting into the terminal or connector.

What to consider before purchase

• Ensure conductor cross-section matches 0.75 mm² for proper fit and crimping performance
• Confirm the ferrule length (8 mm) suits the terminal block or connector depth
• Verify material and color coding meet installation or safety standards in your environment

Usage recommendations

For consistent results, pair these ferrules with a quality ferrule crimping tool sized for 0.75 mm² terminals and perform a pull test on a sample termination. Store the pack in a dry environment away from direct sunlight to preserve polypropylene properties and color coding.