# Ferrule Rittal AS 4051.544 for 0.5 mm² conductors, 10 mm length, copper core with polypropylene insulation, pack of 4000

**URL:** https://aio.lv/en/product--rittal-4051544--12401117
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Network Equipment Accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4051544
**EAN:** 4028177937925
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 165.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 137.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4051544--12401117

## 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 4051.544 is a ferrule (aderendhülse) for terminating 0.5 mm² (AWG 20) conductors. It features a copper conductor core with polypropylene (PP) insulation, 10 mm length and 2.9 mm outer diameter. Supplied in a pack of 4000 pieces, it ensures reliable crimp connections for control cabinets, terminal blocks and electrical installations.

## Long description

Rittal AS 4051.544 is a ferrule designed for terminating 0.5 mm² (AWG 20) conductors. The termination sleeve features a copper conductor core for reliable electrical contact and a polypropylene (PP) insulated plastic collar that guides the conductor and improves insertion into terminals. With a 10 mm length and approximately 2.9 mm outer diameter, this ferrule is supplied in a pack of 4000 pieces for bulk use in industrial and electrical installations.
Advantages
The copper core provides low electrical resistance and long-term conductivity while the polypropylene insulated collar offers strain relief and prevents fraying of fine-stranded wires. The 10 mm sleeve length gives a secure crimp area that supports firm mechanical and electrical connections. Supplied in large quantity, the pack reduces frequent reordering and supports high-volume wiring tasks.
Suitable for
 Crimping fine-stranded 0.5 mm² (AWG 20) conductors
 Termination into terminal blocks and screw terminals in control cabinets
 Panel wiring, distribution boards and switchgear assemblies
 Industrial and building electrical installations requiring standardized ferrules
When it may not be suitable
This ferrule is intended specifically for 0.5 mm² conductors; it should not be used on conductors of significantly different cross-sections, as improper sizing can result in poor crimps or unreliable electrical contact. For insulated housings or terminals that require a different outer diameter or a longer insulation collar, an alternative ferrule size or design may be more appropriate.
Key specifications
 Conductor cross-section: 0.5 mm² (AWG 20)
 Sleeve material: copper core
 Insulation material: polypropylene (PP) plastic collar
 Sleeve length: 10 mm
 Approximate outer diameter: 2.9 mm
 Pack quantity: 4000 pieces
How to use
Strip the conductor to the recommended length so that the bare wire fully enters the metal sleeve. Insert the conductor evenly into the ferrule until the insulation collar abuts the wire insulation. Use a suitably sized ferrule crimping tool to compress the metal sleeve uniformly, following the crimping tool manufacturer's instructions to achieve the correct compression profile. After crimping, inspect the connection for a secure mechanical hold and consistent electrical contact before installing into the terminal or panel.
What to consider before purchase
 Confirm conductor cross-section compatibility (0.5 mm² / AWG 20)
 Verify sleeve length and outer diameter suit your terminal or connector dimensions
 Ensure you have the appropriate crimping tool for insulated ferrules of this size
 Plan inventory needs—pack of 4000 may be intended for bulk wiring projects
Usage recommendations
Use a dedicated insulated-ferrule crimping die sized for 0.5 mm² ferrules and perform sample pulls to verify mechanical strength. Store ferrules in a dry environment and handle them with clean, undamaged crimping tooling to maintain consistent, safe electrical connections.

## Specifications

| Feature | Value |
|---|---|
| Material | Copper, Polypropylene (PP) |
| Product colour | White |
| Length | 10 mm |
| Diameter | 2.9 mm |
| Quantity per pack | 4000 pc(s) |

## FAQ

### How much does the Rittal AS 4051.544 ferrule 0.5 mm² 10 mm cost, and is it available for purchase?

The price is 165.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 31 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 4051.544 ferrule 0.5 mm² 10 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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