# Rittal AS 4051.536 copper polypropylene ferrules, 0.5 mm² (AWG 20), 2 x 10 mm, pack 4000

**URL:** https://aio.lv/en/product--rittal-4051536--12401109
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4051536
**EAN:** 4028177937840
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 147.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 122.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4051536--12401109

## 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 4051.536 are copper ferrules with a polypropylene (PP) collar for insulated wire termination. Rated for 0.5 mm² conductor cross-section (AWG 20), length 10 mm with 2.9 mm diameter, supplied as 4000 pieces per pack. Used to provide reliable crimped connections, prevent strand fraying, and ensure consistent electrical and mechanical contact in control cabinets and wiring harnesses.

## Long description

Rittal AS 4051.536 copper polypropylene ferrules are insulated wire end sleeves designed for crimp termination of stranded conductors. Each ferrule features a copper barrel that provides low electrical resistance and a polypropylene (PP) collar that insulates and guides the conductor into the barrel. The ferrules are specified for a 0.5 mm² (AWG 20) conductor cross-section, with a 10 mm barrel length and a 2.9 mm collar diameter. They are supplied in a pack of 4000 pieces and are suitable for systematic wiring in control cabinets, terminal blocks, and wiring harnesses where reliable, repeatable terminations are required.
Advantages
These ferrules combine a solid copper crimp section with a polymer collar to reduce strand splaying and provide secure mechanical and electrical contact. The polypropylene collar supports insertion into screw terminals and improves insulation between adjacent conductors. Available in a bulk pack of 4000 pieces, they simplify high-volume assembly and maintenance tasks and promote consistent crimp quality when used with compatible crimping tools.
Suitable for
Termination of stranded conductors rated 0.5 mm² (AWG 20)
Control cabinet wiring and distribution blocks
Terminal strips, relays and connector housings that accept insulated ferrules
High-volume assembly and electrical panel production
When it may not be suitable
These ferrules are intended for conductors with a cross-section of 0.5 mm² (AWG 20); they are not suitable for larger or smaller conductor sizes and may not provide reliable results if used outside the specified range. They require a proper insulation-displacement or crimping tool matched to insulated ferrules—hand twisting or improper tooling can lead to poor electrical contact or mechanical failure.
Key specifications
Material of barrel: copper
Insulation collar material: polypropylene (PP)
Conductor cross-section: 0.5 mm² (AWG 20)
Barrel length: 10 mm
Collar diameter: 2.9 mm
Pack quantity: 4000 pieces
How to use
Strip the conductor to the recommended length so that the strands fully enter the copper barrel without exposing excess bare conductor beyond the collar. Insert the stranded conductor into the ferrule until the insulation collar seats against the wire insulation, then apply a crimping tool designed for insulated ferrules to compress the copper barrel uniformly. After crimping, verify mechanical retention by a gentle pull test and confirm good electrical contact with continuity or resistance measurement when required.
What to consider before purchase
Verify conductor cross-section compatibility (0.5 mm² / AWG 20)
Confirm that terminal blocks or connectors accept insulated ferrules with a 2.9 mm collar diameter
Ensure availability of a compatible crimping tool rated for insulated ferrules
Check quantity requirements—pack contains 4000 pieces suitable for bulk use
Usage recommendations
Use a certified insulated-ferrule crimping tool and the manufacturer’s recommended die to achieve consistent crimp quality. Store ferrules in a dry environment to avoid contamination of the copper barrel and keep packs sealed until use to maintain inventory control for panel assembly and maintenance tasks.

## Specifications

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

## FAQ

### How much does the Rittal AS 4051.536 ferrules 0.5 mm² (AWG 20) cost, and is it available for purchase?

The price is 147.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 4051.536 ferrules 0.5 mm² (AWG 20)?

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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