Ferrule Rittal AS 4051.684, copper/polypropylene, for 0.75 mm² conductors, 10 mm length, pack of 500

Rittal AS 4051.684 ferrules are wire end sleeves for 0.75 mm² conductors, combining a copper crimp section with a polypropylene insulating collar. At 10 mm length and approximately 3.4 mm outer diameter, these ferrules are supplied in a pack of 500 and are intended to provide secure, low-resistance terminations in control cabinets, terminal blocks and industrial panel wiring.

Advantages

The copper core offers reliable electrical conductivity and consistent crimping performance, while the polypropylene collar provides insulation, strain relief and a clear identification color. The 10 mm length supports good insertion depth into terminal points and reduces risk of stray strands. Supplied in a bulk pack of 500, the product supports repetitive installation work and maintenance in production or service environments.

Suitable for

• Crimping onto stranded conductors of 0.75 mm² cross-section
• Wiring and termination in control cabinets and distribution panels
• Terminal block connections where insulated ferrules are required
• Electrical assembly, maintenance and repetitive installation tasks

When it may not be suitable

This ferrule is designed specifically for 0.75 mm² conductors and may not fit correctly on thicker or thinner conductors. It is intended for mechanical crimp termination; it is not a substitute for soldered joints or for insulation requirements outside the collar’s protective range.

Key specifications

• Conductor size: 0.75 mm²
• Material: copper crimp section with polypropylene (PP) insulating collar
• Length: 10 mm
• Approximate outer diameter: 3.4 mm
• Pack quantity: 500 pieces

How to use

Strip the conductor to the appropriate length, insert the stranded end fully into the ferrule barrel so that no loose strands protrude, and crimp with the recommended insulated ferrule crimping tool sized for 0.75 mm². After crimping, visually inspect the crimp for uniform compression and ensure the insulating collar seats against the wire insulation to provide strain relief. Insert the crimped ferrule into the terminal point and secure according to the terminal manufacturer’s torque specifications.

What to consider before purchase

• Verify conductor cross-section is 0.75 mm² to ensure proper fit and reliable crimping
• Confirm terminal entry dimensions and installation tool compatibility
• Consider the required pack size for your project to avoid excess handling

Usage recommendations

Use a dedicated ferrule crimping tool matched to 0.75 mm² ferrules and follow terminal torque recommendations. Store packs in a dry environment to keep polypropylene collars and copper surfaces in good condition.