# Rittal AS 4051.579 insulated ferrules 0.75 mm² x 12 mm, copper conductor, white polypropylene sleeve, 500 pcs

**URL:** https://aio.lv/en/product--rittal-4051579--12401129
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4051579
**EAN:** 4028177999695
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4051579--12401129

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Rittal AS 4051.579 insulated ferrules for electrical terminations: copper conductor with a white polypropylene (PP) insulated sleeve, for 0.75 mm² conductors and 12 mm sleeve length. Supplied in a pack of 500 pieces. Designed to provide reliable crimped wire ends, improved contact, and protection against strand fraying in switchgear, control panels and general wiring.

## Long description

Rittal AS 4051.579 insulated ferrules are designed for reliable termination of 0.75 mm² single or stranded copper conductors. Each ferrule features a copper conductor barrel combined with a white polypropylene (PP) insulated sleeve measuring 12 mm in length. Supplied in a pack of 500 pieces, these ferrules are intended to improve electrical contact, prevent strand fraying and simplify crimped connections in switchgear, control panels and general wiring applications.
Advantages
These insulated ferrules provide consistent crimp quality thanks to the copper conductor barrel and a uniform sleeve length that supports secure insertion into terminals. The white PP sleeve offers mechanical protection and insulation at the conductor end while aiding identification and neat wiring. The product format—500 pieces per pack—supports larger wiring jobs and reduces the need for frequent reordering.
Suitable for
 Terminating 0.75 mm² copper stranded or solid conductors
 Crimped connections in switchgear and control panels
 General building wiring and electrical installations
 Applications requiring protection against strand fraying and improved contact reliability
When it may not be suitable
These ferrules are specified for 0.75 mm² conductor cross-section and a 12 mm sleeve length; they are not suitable for conductors with larger or smaller cross-sections. They are intended for copper conductors and should not be used with aluminum wiring unless specifically approved for such use by the installer or standards in the region.
Key specifications
 Conductor material: copper
 Insulation sleeve material: polypropylene (PP), white
 Rated conductor cross-section: 0.75 mm²
 Sleeve length: 12 mm
 Pack quantity: 500 pieces
 With plastic collar for improved insertion and crimp stability
How to use
Strip the conductor to the appropriate length so that the bare conductor fits fully into the copper barrel. Insert the conductor strands into the ferrule until the insulation butts against the sleeve. Use a suitable crimping tool matched to 0.75 mm² ferrules and apply a single, firm crimp according to the tool manufacturer's instructions. After crimping, visually inspect the termination for full insertion and a secure crimp; the sleeve should remain intact and protect the conductor end.
What to consider before purchase
 Verify conductor cross-section compatibility (0.75 mm²) with your wiring.
 Ensure the ferrule sleeve length (12 mm) suits the terminal depth and insulation requirements.
 Confirm suitability for copper conductors in your application and local regulations.
 Choose an appropriate crimping tool designed for insulated ferrules of this size.
Usage recommendations
For consistent results, use a calibrated crimping tool sized for 0.75 mm² insulated ferrules and follow local electrical installation standards. Store the ferrules in a dry environment and keep the pack sealed until use to avoid contamination of the sleeves. Replace any ferrules showing damage or deformation prior to installation.

## Specifications

| Feature | Value |
|---|---|
| Material | Copper, Polypropylene (PP) |
| Product colour | White |
| Length | 12 mm |
| Diameter | 3.4 mm |
| Quantity per pack | 500 pc(s) |

## FAQ

### How much does the Rittal AS 4051.579 insulated ferrules 0.75 mm² x 12 mm cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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 14.07.2026 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 4051.579 insulated ferrules 0.75 mm² x 12 mm?

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

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