Crimp ferrules Rittal AS 4051.602, copper/polypropylene, 1.0 mm² (AWG 18), 10 mm length, pack of 5000, yellow

Rittal AS 4051.602 crimp ferrules are designed for secure and repeatable termination of stranded copper conductors. Each ferrule consists of a copper tube with a polypropylene insulating collar in yellow, suitable for 1.0 mm² (AWG 18) conductors and a 10 mm ferrule length. Supplied in a bulk pack of 5000 pieces, these ferrules are intended for panel wiring, terminal block connections and other industrial or commercial electrical assembly tasks where consistent, low-resistance contacts are required.

Advantages

The combination of a copper sleeve and a polypropylene (PP) insulated collar provides reliable electrical conductivity while offering insulation and strain relief at the termination point. The standard 10 mm length supports good conductor insertion depth and allows for consistent crimping results with compatible crimping tools. Supplied in large quantities, the pack of 5000 ferrules reduces packaging waste and supports high-volume wiring operations.

Suitable for

• Termination of 1.0 mm² (AWG 18) stranded copper conductors
• Terminal blocks, relays and screw-type connectors in control panels
• Mass wiring and production-line electrical assembly
• Field service and maintenance requiring many identical terminations

When it may not be suitable

These ferrules are specifically sized for 1.0 mm² (AWG 18) conductors; they are not appropriate for significantly larger or smaller conductor cross-sections. The polypropylene collar offers basic insulation and strain relief but is not rated as a full protective sleeve for environments requiring high heat resistance or prolonged exposure to aggressive chemicals.

Key specifications

• Conductor cross-section: 1.0 mm² (AWG 18)
• Ferrule length: 10 mm
• Material (sleeve): copper
• Insulating collar material: polypropylene (PP)
• Insulation colour: yellow
• Quantity per pack: 5000 pieces

How to use

Strip the conductor to the appropriate length, ensuring no damaged strands remain. Insert the stripped conductor fully into the copper sleeve until it reaches the insulating collar. Use a suitable crimping tool calibrated for 1.0 mm² ferrules and perform a single, firm crimp to compress the sleeve onto the conductor. After crimping, verify mechanical retention and electrical continuity before installing the terminated conductor into the terminal or connector.

What to consider before purchase

• Confirm conductor cross-section compatibility: 1.0 mm² (AWG 18).
• Check that your crimping tool is suitable for insulated ferrules of 10 mm length.
• Assess whether polypropylene collar properties meet environmental and temperature demands of your application.
• Consider bulk quantity needs: pack contains 5000 pieces.

Usage recommendations

Use a manufacturer-recommended or calibrated crimping die for insulated ferrules to ensure reliable electrical contact and mechanical stability. Store packs in a dry environment to avoid contamination before use, and select the yellow insulated ferrules where colour coding is required for circuit identification.