# Wire ferrules Rittal AS 4051.549, copper with polypropylene insulation, 0.75 mm² (AWG 18), length 8 mm, diameter 3.4 mm, pack of 4000

**URL:** https://aio.lv/en/product--rittal-4051549--12401121
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4051549
**EAN:** 4028177937970
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 74.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 61.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4051549--12401121

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Rittal AS 4051.549 ferrules are copper conductors with polypropylene (PP) insulation designed for terminating 0.75 mm² (AWG 18) conductors. Each ferrule measures 8 mm in length and 3.4 mm in diameter. Supplied in a pack of 4000, they provide reliable crimped terminations for control cabinets, automation panels and general electrical wiring to improve conductor connection and prevent strand fraying.

## Long description

Rittal AS 4051.549 wire ferrules are copper conductors with a polypropylene (PP) insulated collar, designed for terminating 0.75 mm² (AWG 18) stranded wires. Each ferrule has a tube length of 8 mm and an outer diameter of 3.4 mm, providing a compact, consistent crimp end. Supplied in a pack of 4000, these ferrules are intended for use in control cabinets, automation panels and general electrical wiring to ensure reliable electrical contact and prevent strand fraying during insertion into terminals or screw connections.
Advantages
These ferrules offer a corrosion-resistant copper conductor combined with a polypropylene insulation collar that facilitates insertion and improves strain distribution at the conductor termination. The standardized dimensions (0.75 mm², 8 mm length, 3.4 mm diameter) deliver repeatable crimps with compatible crimping tools and reduce the risk of loose connections. A large pack quantity of 4000 pieces supports production runs and maintenance tasks without frequent reordering.
Suitable for
 Terminating 0.75 mm² (AWG 18) stranded copper wires for screw or spring-clamp terminals
 Wiring in control cabinets and industrial automation panels
 General electrical installations and maintenance tasks requiring reliable crimped ends
 Applications where prevention of strand fraying and consistent contact area is required
When it may not be suitable
These ferrules are specifically sized for 0.75 mm² (AWG 18) conductors; they are not suitable for larger or smaller cross-sections. For applications that require high-temperature or chemical-resistant insulation materials, the polypropylene collar may not meet the environmental demands. Where soldered terminations or specialised connectors are mandated by regulation or design, crimp ferrules should not be used.
Key specifications
 Conductor material: copper
 Insulation material: polypropylene (PP) collar
 Nominal conductor cross-section: 0.75 mm² (AWG 18)
 Tube length: 8 mm
 Outer diameter: 3.4 mm
 Pack quantity: 4000 pieces
How to use
Strip the stranded conductor to the appropriate length, insert the bare strands into the ferrule tube until the insulation collar meets the conductor insulation, and crimp using a suitable ferrule crimping tool sized for 0.75 mm² ferrules. After crimping, inspect the crimp for secure deformation of the tube and ensure the collar seats against the conductor insulation. Insert the crimped ferrule into the terminal and tighten the terminal screw or engage the spring clamp according to the terminal manufacturer's torque specification.
What to consider before purchase
 Confirm conductor cross-section compatibility: 0.75 mm² (AWG 18)
 Verify mechanical and environmental requirements for insulation material (polypropylene)
 Ensure crimping tool compatibility with ferrules of 8 mm length
 Assess pack size (4000 pieces) against project or stocking needs
Usage recommendations
Use a dedicated ferrule crimper sized for 0.75 mm² ferrules and follow terminal torque specifications to achieve reliable electrical contact. Store in a dry environment to avoid contamination of the ferrule tubes and maintain consistent crimps.

## Specifications

| Feature | Value |
|---|---|
| Material | Copper, Polypropylene (PP) |
| Product colour | Grey |
| Length | 8 mm |
| Diameter | 3.4 mm |
| Quantity per pack | 4000 pc(s) |

## FAQ

### How much does the Rittal AS 4051.549 wire ferrules 0.75 mm² AWG 18 cost, and is it available for purchase?

The price is 74.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 64 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Rittal products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Rittal service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for Rittal AS 4051.549 wire ferrules 0.75 mm² AWG 18?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12401121/68689656_large.webp