Cable accessory Rittal 4051.727 orange polypropylene ferrules 4.8 mm diameter, 8 mm length, pack of 500

Rittal 4051.727 orange polypropylene ferrules are designed to terminate and protect stranded conductors in electrical and control panel wiring. Each ferrule has an outer diameter of 4.8 mm and a length of 8 mm, supplied in a pack of 500 pieces. Made from polypropylene (PP), these ferrules provide a neat insulation finish at wire ends, reduce the risk of strand fraying, and help ensure reliable screw and clamp connections in industrial and building electrical installations.

Advantages

These ferrules offer consistent mechanical protection and electrical contact reliability by enclosing stranded conductors in a uniform sleeve. The polypropylene construction gives chemical and wear resistance suitable for typical panel and field environments. The bright orange color supports quick visual identification and color-coding of circuits. Supplied in bulk packs of 500, they are convenient for repetitive assembly tasks and reduce handling time during terminal installations.

Suitable for

• Termination of stranded conductors in control cabinets and distribution boards
• Electrical panel assembly and maintenance work
• Signal and power wiring in industrial automation
• Wire preparation before screw terminal or clamp connections

When it may not be suitable

These polypropylene ferrules are intended for standard stranded copper conductors and typical indoor panel environments. They are not designed for direct exposure to high temperatures, open outdoor environments without additional protection, or applications requiring specific flame-retardant materials or extreme chemical resistance. For larger conductor sizes, insulated ferrules with different dimensions or materials may be more appropriate.

Key specifications

• Material: polypropylene (PP)
• Outer diameter: 4.8 mm
• Length: 8 mm
• Color: orange
• Pack quantity: 500 pieces

How to use

Strip the insulation from the stranded conductor to the appropriate length, insert the conductor fully into the ferrule sleeve, and crimp using a suitable ferrule crimping tool sized for the ferrule dimensions. After crimping, insert the terminated wire into the screw terminal or clamp and secure according to the terminal manufacturer's torque recommendations. Ensure the ferrule is fully seated and that there are no loose strands visible outside the sleeve.

What to consider before purchase

• Verify conductor cross-section compatibility with a 4.8 mm outer diameter and 8 mm length ferrule sleeve
• Confirm that polypropylene material and color coding meet installation standards and environmental requirements
• Ensure availability of a compatible ferrule crimping tool for consistent crimps

Usage recommendations

Use a calibrated crimping tool rated for insulated and non-insulated ferrules to achieve reliable mechanical and electrical connections. Store the pack in a dry environment away from direct sunlight to preserve polypropylene properties. For critical or high-current terminations, check that the chosen ferrule dimensions suit the conductor cross-section and terminal type before installation.