# Crimp ferrules Rittal AS 4051.540, copper/PP, 0.5 mm², 8 mm length, pack of 4000

**URL:** https://aio.lv/en/product--rittal-4051540--12401113
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4051540
**EAN:** 4028177937888
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 73.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 60.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4051540--12401113

## 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 4051.540 crimp ferrules for insulated conductors, made of copper with polypropylene (PP) insulation. Rated for 0.5 mm² conductor cross-section (≈ AWG 20) and 8 mm sleeve length. Supplied in packs of 4000 pieces, orange colour. Suitable for reliable crimp termination of stranded wires in control cabinets, panel building and electrical installations.

## Long description

Rittal AS 4051.540 crimp ferrules are copper sleeves with polypropylene (PP) insulated collars designed for terminating stranded conductors. They are sized for 0.5 mm² conductor cross-section (approximately AWG 20) and feature an 8 mm sleeve length. Supplied in a pack of 4000 pieces in orange, these ferrules provide a consistent, compact crimp termination for control cabinets, panel building and general electrical installations.
Advantages
The copper core ensures reliable electrical conductivity while the polypropylene collar stabilises the wire and prevents fraying during insertion and crimping. The uniform sleeve length and consistent inner diameter enable repeatable crimp quality across large batches, reducing installation time and rework. The orange insulated collar offers clear visual identification of cross-section and improves handling in confined terminal spaces.
Suitable for
Crimp termination of stranded wires with 0.5 mm² conductor cross-section (≈ AWG 20)
Control cabinet wiring and terminal blocks
Panel building and industrial electrical assemblies
General electrical installations where insulated ferrules are required
When it may not be suitable
These ferrules are intended for 0.5 mm² stranded conductors; they will not provide correct fit or crimp quality for significantly larger or smaller conductor sizes. They are not intended for uninsulated direct soldering applications or for conductors requiring special high-temperature or chemical-resistant insulation beyond standard polypropylene.
Key specifications
Conductor cross-section: 0.5 mm² (approx. AWG 20)
Sleeve material: copper
Insulation material: polypropylene (PP)
Sleeve length: 8 mm
Pack quantity: 4000 pieces
Colour: orange
How to use
Strip the conductor to the appropriate length so the bare strands fully enter the copper sleeve. Insert the stranded wire straight into the ferrule until the insulation collar aligns with the cable insulation. Use a crimping tool sized for 0.5 mm² ferrules and perform a single, firm crimp to compress the sleeve uniformly around the conductor. After crimping, check that the ferrule is secure and that no stray strands are visible. Insert the terminated wire into the terminal block or connector and fasten according to the terminal manufacturer’s instructions.
What to consider before purchase
Ensure conductor cross-section compatibility: 0.5 mm² (≈ AWG 20)
Confirm sleeve length (8 mm) suits your terminal depth and insulation strip length
Verify polypropylene insulation meets the environmental and temperature requirements of your installation
Consider pack size (4000 pieces) relative to project needs and storage
Usage recommendations
For consistent, reliable terminations use a dedicated insulated-ferrule crimping die for 0.5 mm². Store ferrules in a dry environment away from direct sunlight to preserve the polypropylene collars. Inspect crimps periodically in critical installations to ensure long-term mechanical and electrical integrity.

## Specifications

| Feature | Value |
|---|---|
| Material | Copper, Polypropylene (PP) |
| Product colour | Orange |
| Length | 8 mm |
| Diameter | 2.9 mm |
| Quantity per pack | 4000 pc(s) |

## FAQ

### How much does the Rittal AS 4051.540 crimp ferrules 0.5 mm² 8 mm cost, and is it available for purchase?

The price is 73.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 28 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 4051.540 crimp ferrules 0.5 mm² 8 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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