# Terminal ferrules Rittal AS 4051.685, copper/PP, 0.75 mm² conductor, 12 mm length, grey, pack 500

**URL:** https://aio.lv/en/product--rittal-4051685--12401159
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Rittal
**Manufacturer code:** 4051685
**EAN:** 4028177999718
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-4051685--12401159

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Rittal AS 4051.685 are insulated ferrule terminal sleeves for conductor cross-sections of 0.75 mm². Constructed with a copper tube and polypropylene (PP) insulation in grey, each ferrule is 12 mm long with a 3.4 mm outer diameter. Supplied in a pack of 500, they provide secure wire termination for control panels, switchgear and industrial electrical connections.

## Long description

Rittal AS 4051.685 insulated terminal ferrules are designed for reliable termination of stranded conductors with a cross-section of 0.75 mm². Each ferrule combines a copper tube for electrical conductivity with a polypropylene (PP) insulated collar in grey. The ferrules are 12 mm in overall length with an outer diameter of approximately 3.4 mm and are supplied in a pack of 500, intended for use in control cabinets, switchgear and industrial electrical installations where secure, repeatable wire connections are required.
Advantages
The copper inner tube ensures low contact resistance and stable electrical performance. The polypropylene insulation provides mechanical strain relief, insulation between adjacent conductors and color identification. The standardized length and consistent crimp geometry enable secure crimped joints and improved conductor insertion, reducing stray strands and improving long-term connection reliability. The pack quantity of 500 supports larger wiring projects and maintenance tasks.
Suitable for
Termination of stranded conductors with 0.75 mm² cross-section
Control cabinet wiring and switchgear assemblies
Industrial machines and automation panels
Mass wiring and maintenance where uniform ferrules speed installation
When it may not be suitable
These ferrules are specified for 0.75 mm² conductors; they are not suitable for significantly larger or smaller conductor cross-sections. They are intended for stranded copper conductors and are not appropriate for solid conductors or for applications requiring special high-temperature or chemically resistant insulation materials.
Key specifications
Conductor cross-section: 0.75 mm²
Ferrule length: 12 mm
Outer diameter: approx. 3.4 mm
Inner tube material: copper
Insulation material: polypropylene (PP), grey
Pack quantity: 500 pieces
How to use
Trim the stranded conductor to the required length and, if necessary, twist the strands lightly. Insert the stripped conductor into the copper tube until the insulation collar butts against the wire insulation. Use an appropriate insulated ferrule crimping tool sized for 0.75 mm² ferrules and apply a controlled crimp to compress the copper tube onto the conductor. After crimping, inspect the joint to ensure there are no loose strands and that the ferrule is seated squarely. The insulated collar provides a visual and mechanical stop and helps guide the ferrule during insertion into terminal blocks.
What to consider before purchase
Confirm conductor type and cross-section (0.75 mm² stranded copper recommended)
Ensure crimping tool compatibility with 0.75 mm² insulated ferrules
Verify required ferrule length and outer diameter for your terminal blocks
Consider pack size (500) relative to project needs and storage
Usage recommendations
Use a high-quality crimping tool matched to insulated ferrules to achieve consistent compression and low contact resistance. Maintain proper stripping length so the copper tube fully encloses the conductor strands and the insulation collar prevents wire strand splaying. For reliable panel wiring, keep ferrule sizes consistent with terminal block clamp dimensions and follow applicable electrical installation standards.

## Specifications

| Feature | Value |
|---|---|
| Material | Copper, Polypropylene (PP) |
| Product colour | Grey |
| Length | 12 mm |
| Diameter | 3.4 mm |
| Quantity per pack | 500 pc(s) |

## FAQ

### How much does the Rittal AS 4051.685 4051.685 cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 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 03.08.2026 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 4051.685 4051.685?

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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