# Terminal ferrules Rittal AS 4051.542, copper core with polypropylene insulation, 1.0 mm² (AWG 18), length 8 mm, pack 4000

**URL:** https://aio.lv/en/product--rittal-4051542--12401115
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4051542
**EAN:** 4028177937901
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 77.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 64.04 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4051542--12401115

## 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 4051.542 are insulated ferrules (aderendhülsen) with a copper conductor and polypropylene (PP) insulation, designed for 1.0 mm² (AWG 18) conductors. Each ferrule is 8 mm long. Supplied in a pack of 4000 pieces, they ensure reliable wire termination, improved conductor stability and consistent crimping for electrical panels, control cabinets and wiring harnesses.

## Long description

Rittal AS 4051.542 insulated ferrules are designed for reliable termination of 1.0 mm² (AWG 18) conductors. Each ferrule has a copper core and a polypropylene (PP) insulating collar, with a total length of 8 mm. Supplied in a pack of 4000, these ferrules are intended for consistent crimp connections in electrical panels, control cabinets and wiring harnesses where a secure conductor end is required.
Advantages
The copper core offers good electrical conductivity and mechanical strength while the polypropylene insulation provides electrical isolation and strain relief at the conductor end. The plastic collar ensures uniform insulation length and easier insertion into terminal blocks. Packed in a large quantity, the set reduces interruptions for replenishment and supports repetitive crimping work with consistent results.
Suitable for
 Termination of single-strand and tinned stranded conductors with a cross-section of 1.0 mm² (AWG 18)
 Crimping for control cabinets and distribution panels
 Wiring harnesses and industrial electrical assemblies
 Applications requiring insulated ferrules for secure screw or spring-clamp connections
When it may not be suitable
These ferrules are intended specifically for conductors of 1.0 mm² (AWG 18); they are not suitable for significantly larger or smaller conductor cross-sections. For high-temperature environments or applications requiring specialized insulation materials, polypropylene-insulated ferrules may not meet the necessary thermal or chemical resistance specifications.
Key specifications
 Conductor cross-section: 1.0 mm² (AWG 18)
 Conductor material: copper core
 Insulation material: polypropylene (PP) plastic collar
 Ferrule length: 8 mm
 Pack quantity: 4000 pieces
 Intended use: insulated ferrule for crimp termination
How to use
Strip the conductor to the appropriate length, slide the ferrule over the conductor end until the wire strands are fully enclosed, and crimp the ferrule using a matching crimping tool designed for insulated ferrules of this cross-section. After crimping, inspect the connection to ensure the conductor is securely held and the insulation collar aligns with the terminal entry. Insert the crimped ferrule into the terminal and tighten or engage the clamp according to the terminal manufacturer's instructions.
What to consider before purchase
 Verify conductor cross-section compatibility (1.0 mm² / AWG 18).
 Confirm that polypropylene insulation is acceptable for your temperature and chemical exposure conditions.
 Ensure you have a compatible crimping tool for insulated ferrules of this size.
 Consider storage and handling needs for a large 4000-piece pack.
Usage recommendations
For consistent, safe terminations use a calibrated crimping tool sized for 1.0 mm² insulated ferrules and follow regular inspection routines; avoid using these ferrules on conductors outside the specified cross-section or in environments exceeding PP insulation limits.

## Specifications

| Feature | Value |
|---|---|
| Material | Copper, Polypropylene (PP) |
| Product colour | Yellow |
| Length | 8 mm |
| Diameter | 3.5 mm |
| Quantity per pack | 4000 pc(s) |

## FAQ

### How much does the Rittal AS 4051.542 insulated ferrules 1.0 mm², 8 mm cost, and is it available for purchase?

The price is 77.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 23 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 4051.542 insulated ferrules 1.0 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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