# Crimp ferrules Rittal AS 4051.539, copper with PP collar, for 1.5 mm² conductors, 10 mm length, pack of 4000

**URL:** https://aio.lv/en/product--rittal-4051539--12401112
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4051539
**EAN:** 4028177937871
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 154.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 127.68 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4051539--12401112

## 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 4051.539 crimp ferrules are copper tubes with a polypropylene (PP) insulating collar designed for 1.5 mm² (AWG 16) conductors. Each ferrule is 10 mm long and 4 mm outer diameter, supplied in a pack of 4000. They provide secure wire termination for control panels, switchgear and industrial wiring, improving conductor contact and preventing fraying.

## Long description

Rittal AS 4051.539 crimp ferrules are copper tubes with a polypropylene (PP) insulating collar made for 1.5 mm² conductors (approx. AWG 16). Each ferrule measures 10 mm in length with an outer diameter of 4 mm and is supplied in a pack of 4000. These ferrules provide a uniform, stripped-end termination that improves conductor contact in screw and clamp connections while preventing strand fraying and ensuring consistent crimp reliability in control panels, switchgear and other industrial wiring applications.
Advantages
The combination of a tin-plated copper sleeve and a polypropylene insulating collar offers reliable electrical contact, corrosion resistance and mechanical stability. The PP collar insulates and guides the conductor into the sleeve for easier insertion and a cleaner crimp. Consistent geometry and a defined length support repeatable crimps with hand or hydraulic crimping tools, reducing the chance of loose connections and improving assembly speed for bulk wiring tasks.
Suitable for
 Termination of 1.5 mm² (AWG 16) stranded copper conductors
 Control panels and switchgear internal wiring
 Terminal block and screw clamp connections
 Mass production and assembly lines requiring bulk ferrules
 Field service and maintenance tasks needing reliable, repeatable crimps
When it may not be suitable
These ferrules are sized specifically for 1.5 mm² conductors; they will not fit smaller or larger conductor cross-sections correctly and may compromise the crimp if used outside their intended range. They are intended for stranded copper conductors—use with solid conductors, aluminium conductors or non-recommended wire types may not provide secure electrical contact.
Key specifications
 Conductor cross-section: 1.5 mm² (approx. AWG 16)
 Sleeve material: copper (tin-plated)
 Insulating collar material: polypropylene (PP)
 Sleeve length: 10 mm
 Outer diameter (approx.): 4 mm
 Pack quantity: 4000 pieces
How to use
Strip the conductor to the correct length so that all strands enter the copper sleeve without leaving excess exposed conductor beyond the collar. Insert the stripped, stranded conductor fully into the ferrule until the insulation meets the collar. Use a suitable crimping tool sized for 1.5 mm² ferrules and apply a single, firm crimp stroke or the manufacturer-recommended crimp profile. After crimping, visually inspect the ferrule to ensure the sleeve is deformed uniformly and that the collar remains intact to provide insulation and strain relief.
What to consider before purchase
 Confirm conductor type and cross-section are compatible (stranded copper, 1.5 mm²).
 Verify compatibility of your crimping tool with 1.5 mm² ferrules and the required crimp profile.
 Ensure pack quantity (4000 pieces) matches project needs and storage capability.
 Consider whether tin-plated copper sleeves are required for your environmental conditions.
Usage recommendations
For reliable results, pair these Rittal ferrules with a calibrated manual or hydraulic crimper set for 1.5 mm² ferrules and perform a pull test on initial crimps to validate connection quality. Store packs in a dry environment to maintain the condition of the PP collars and the tin-plated copper sleeves.

## Specifications

| Feature | Value |
|---|---|
| Material | Copper, Polypropylene (PP) |
| Product colour | Red |
| Length | 10 mm |
| Diameter | 4 mm |
| Quantity per pack | 4000 pc(s) |

## FAQ

### How much does the Rittal AS 4051.539 crimp ferrules 1.5 mm², 10 mm cost, and is it available for purchase?

The price is 154.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 4051.539 crimp ferrules 1.5 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

https://aio.lv/img/cache/product/12401112/68689665_large.webp