Rittal AS 4050.761 ferrules, copper core with polypropylene insulation, orange, length 10 mm, diameter 2.6 mm, pack of 500

Rittal AS 4050.761 ferrules are insulated wire end sleeves designed for reliable termination of stranded conductors. Each ferrule features a copper core and polypropylene (PP) insulation in orange, with an overall length of 10 mm and an internal diameter suitable for conductors up to approximately 2.6 mm. Supplied in a pack of 500, these ferrules help improve contact quality, prevent wire strand fraying and simplify insertion into screw terminals and terminal blocks in control cabinets, distribution boards and wiring harnesses.

Advantages

These ferrules combine a conductive copper core with durable polypropylene insulation to provide consistent electrical contact and mechanical protection at conductor ends. The orange insulation and plastic collar aid identification and make handling easier during assembly. Packed in large quantities, they are suitable for repetitive tasks and production environments, reducing time spent on manual preparation of stranded wires and contributing to cleaner, safer terminations.

Suitable for

• Terminating stranded copper conductors for screw or spring clamp terminals
• Electrical panels, control cabinets and distribution boards
• Wire harness assembly and repetitive installation work
• Preventing strand fraying and ensuring reliable contact in industrial and building wiring

When it may not be suitable

These ferrules are intended for use with stranded copper conductors that fit the specified diameter and length. They are not suitable for solid conductors or for cables requiring larger insulation types or higher mechanical protection than polypropylene can provide. For applications with specific temperature, chemical resistance or high-voltage insulation requirements, alternative ferrules or termination methods may be more appropriate.

Key specifications

• Conductor material: copper core for electrical conductivity
• Insulation material: polypropylene (PP)
• Insulation color: orange for visual identification
• Overall length: 10 mm
• Applicable conductor outer diameter: approx. 2.6 mm (sleeve internal diameter suited for corresponding stranded wires)
• Package quantity: 500 pieces
• Design feature: plastic collar to facilitate insertion and prevent insulation damage

How to use

Strip the conductor to the recommended length to expose the strands, insert the stranded conductor fully into the ferrule until the insulation collar sits against the cable insulation, and crimp the ferrule using an appropriately sized crimping tool or press. After crimping, check that the ferrule is securely fixed and that no strands are protruding. Insert the terminated conductor into the terminal and tighten according to the terminal manufacturer’s torque specifications.

What to consider before purchase

• Confirm conductor cross-section and strand size to ensure compatibility with a 2.6 mm diameter ferrule
• Verify the required insulation material and color coding for your installation or local standards
• Ensure you have a compatible crimping tool or press that matches the ferrule dimensions
• Consider the quantity required—pack of 500 is suitable for larger projects or stock for maintenance

Usage recommendations

Use these ferrules with a matching crimping die and follow terminal torque guidelines to ensure reliable electrical and mechanical connections. Store in a dry environment to preserve insulation properties and keep the orange color visible for identification during maintenance and inspection.