Ferrule Rittal AS 4050.766, copper/polypropylene insulated wire end sleeve, 8 mm length, 2.8 mm diameter, white

The Rittal AS 4050.766 is a white insulated ferrule designed for secure termination of stranded copper conductors. Made from copper with a polypropylene (PP) plastic collar, it provides a compact, reliable connection for control cabinets and electrical panels where neat, insulated wire ends are required. The ferrule has a length of 8 mm and an inner conductor diameter of 2.8 mm.

Advantages

The polypropylene collar protects against fraying and ensures reliable insulation at the wire end while the copper sleeve provides solid electrical contact and corrosion resistance typical for copper. Its compact dimensions make it suitable for tight terminal spaces and standard wiring applications, and the colour coding helps quick identification during wiring and maintenance.

Suitable for

• Insulation and termination of stranded copper conductors in control cabinets and distribution boards
• Applications requiring neat, insulated wire ends for screw or clamp terminals
• Electrical maintenance and panel assembly where space is limited

When it may not be suitable

This ferrule is intended for stranded copper wires and may not be appropriate for solid conductors or aluminium cables. It is a small-diameter ferrule (2.8 mm inner diameter); for larger conductors you will need a ferrule with a larger sleeve diameter and length suited to the conductor cross-section.

Key specifications

• Material: Copper sleeve with polypropylene (PP) collar
• Product colour: White (collar)
• Length: 8 mm
• Inner diameter: 2.8 mm

How to use

Strip the insulation from the stranded copper conductor to the appropriate length, insert the conductor into the ferrule until the strands are fully inside the copper sleeve, and crimp the sleeve using a suitable ferrule crimping tool following the tool manufacturer's instructions. After crimping, check that the collar sits flush against the wire insulation and that the crimp is secure before inserting into terminals.

What to consider before purchase

• Compatibility with the conductor type and cross-section (stranded copper)
• Required inner diameter and ferrule length for the target wire
• Whether the white colour coding matches your wiring identification system

Usage recommendations

Use a dedicated ferrule crimping tool sized for 2.8 mm ferrules and verify crimp quality visually and mechanically to ensure dependable electrical contact and insulation.