Rittal AS 4051.575 ferrules 0.5 mm² x 10 mm, copper, polypropylene, orange, pack of 500

Rittal AS 4051.575 crimp ferrules are engineered for stranded copper conductors with a nominal cross-section of 0.5 mm² and a tube length of 10 mm. Each ferrule combines a copper inner sleeve for reliable electrical contact with a polypropylene (PP) insulating collar in orange for easy identification. Supplied as a pack of 500, these ferrules are intended for use in control cabinets, terminal blocks and general industrial electrical installations where secure, repeatable crimped terminations are required.

Advantages

These ferrules provide a consistent, gas-tight connection by confining and compressing stripped strands into a copper sleeve, which reduces the risk of loose strands and improves mechanical stability. The polypropylene insulating collar protects against short circuits at screw terminals and facilitates insertion into terminal blocks. The orange colour aids visual identification and organisation of wiring. Supplied in a bulk pack of 500, they are suitable for repetitive installation tasks and maintenance work.

Suitable for (tasks / use cases)

• Crimping stranded copper conductors with 0.5 mm² cross-section
• Terminating wires in control cabinets and distribution blocks
• Connections to screw-type terminal strips and relays
• Routine electrical maintenance and mass wiring operations

When it may not be suitable

These ferrules are designed specifically for conductors of 0.5 mm² and a tube length of 10 mm; they are not suitable for larger or smaller conductor cross-sections or for applications requiring insulated sleeves of a different material or thermal rating. For high-vibration environments requiring additional strain relief or for conductors with non-standard insulation types, alternative termination methods or ferrules with different collars may be preferable.

Key specifications

• Conductor cross-section: 0.5 mm²
• Tube length: 10 mm
• Inner sleeve material: copper
• Insulating collar material: polypropylene (PP)
• Collar colour: orange
• Qty per pack: 500 pieces

How to use

Strip the conductor to the recommended length so that the bare strands can fully enter the copper sleeve. Insert the stripped conductor into the ferrule until the insulation meets the polypropylene collar. Use a suitable crimping tool sized for 0.5 mm² ferrules to compress the copper sleeve uniformly; follow the crimper manufacturer's guidance for die selection and crimp force. After crimping, verify a firm mechanical and electrical connection and insert the ferrule into the terminal, tightening the terminal screw to the specified torque.

What to consider before purchase

• Confirm conductor cross-section (0.5 mm²) and whether a 10 mm tube length matches strip length and terminal depth
• Ensure copper sleeve and PP collar materials meet the installation’s electrical and environmental requirements
• Verify compatibility with available crimping tools and dies for 0.5 mm² ferrules
• Assess pack quantity (500 pieces) relative to project size and storage needs

Usage recommendations

Use a calibrated crimping tool with the correct die for 0.5 mm² ferrules and apply the manufacturer’s recommended torque on terminal screws to ensure reliable electrical contact and mechanical stability. Store packs in a dry environment away from direct sunlight to preserve polypropylene collar properties.