# Rittal AS 4050.780 copper polypropylene ferrules, blue, 12 mm length, 4.2 mm diameter, pack of 500

**URL:** https://aio.lv/en/product--rittal-4050780--12401066
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4050780
**EAN:** 4028177999923
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.99 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 9.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4050780--12401066

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Rittal AS 4050.780 ferrules combine a copper conductive sleeve with a polypropylene insulating collar in blue. Each ferrule measures 12 mm in length and 4.2 mm in diameter and is supplied in a pack of 500. Designed for terminating and crimping stranded conductors to improve contact reliability and prevent strand splay in electrical installations.

## Long description

Rittal AS 4050.780 copper polypropylene ferrules in blue are crimp end sleeves designed to terminate and protect stranded conductors in electrical installations. Each ferrule combines a conductive copper tube with a polypropylene insulating collar to ensure reliable contact, prevent strand splay, and provide a consistent crimping surface. The ferrules measure 12 mm in length and have an inner diameter suitable for AWG-equivalent conductors around the specified diameter, and they are supplied in a practical pack of 500 for professional or repeat-use environments.
Advantages
These ferrules provide a solid electrical connection by concentrating the conductor strands within a copper sleeve while the polypropylene collar supports easy insertion into terminals and helps prevent short circuits. The uniform dimensions and material choice contribute to repeatable crimp quality, improved mechanical stability, and better current transfer compared with non-terminated stranded wire. The blue collar offers visual identification according to common colour-coding practices.
Suitable for
Terminating stranded copper conductors for screw, clamp or spring-type terminals
Electrical panels, control cabinets and junction boxes
Industrial machinery wiring and installation maintenance
Repeated installations where consistent crimp quality is required
When it may not be suitable
These ferrules are intended for stranded copper conductors and may not be appropriate for solid conductors or for conductors with insulation types that require specialised termination methods. They are sized for the dimensions given and therefore unsuitable for conductors significantly larger or smaller than the specified diameter.
Key specifications
Material: copper sleeve with polypropylene insulating collar
Colour of collar: blue
Length: 12 mm
Inner diameter / conductor compatibility: for conductors matching the specified diameter (approx. 4.2 mm external)
Pack quantity: 500 pieces
How to use
Strip the conductor to the appropriate length, insert the stranded wire into the copper sleeve until the insulation meets the polypropylene collar, and crimp using a suitable ferrule crimping tool. Ensure the correct crimping die or setting is used for the ferrule size to achieve a secure mechanical and electrical connection. After crimping, verify that no strands protrude and that the connection fits properly into the intended terminal.
What to consider before purchase
Confirm conductor cross-section and strand type match the ferrule dimensions
Verify compatibility with the terminal type (screw, clamp, spring) used in your installation
Ensure you have the correct crimping tool and dies for 12 mm ferrules
Consider pack quantity relative to project size to avoid excess or shortage
Usage recommendations
Use the ferrules with a calibrated crimping tool and appropriate dies; inspect crimps visually and electrically where required. Store in a dry environment away from direct sunlight to preserve the polypropylene collar. Follow local electrical codes and manufacturer guidance when terminating conductors.

## Specifications

| Feature | Value |
|---|---|
| Material | Copper, Polypropylene (PP) |
| Product colour | Blue |
| Length | 12 mm |
| Diameter | 4.2 mm |
| Quantity per pack | 500 pc(s) |

## FAQ

### How much does the Rittal AS 4050.780 copper PP ferrules 12 mm 4.2 mm cost, and is it available for purchase?

The price is 11.99 € (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 03.08.2026 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 4050.780 copper PP ferrules 12 mm 4.2 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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