# Klauke 4R5 Tubular Ring Lug, Tin-Plated Straight Electrical Terminal for 25 mm² Wire with M5 Stud Size

**URL:** https://aio.lv/en/product--gustav-klauke-gmbh-4r5--12591954
**Data updated:** 2026-07-27 18:21 (EEST)
**Category:** Other goods
**Manufacturer:** Gustav Klauke GmbH
**Manufacturer code:** 4R5
**EAN:** 4012078048590
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.49 €
**Prices and availability valid until:** 2026-08-29 23:59
**Price without VAT (21%):** 30.16 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--gustav-klauke-gmbh-4r5--12591954

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.08.2026 | free |
| Pickup points | 18.08.2026 | 1.79 EUR |
| Courier delivery to door | 18.08.2026 | 4.99 EUR |

## Summary description

The Klauke 4R5 is a high-quality tubular ring lug designed for professional electrical installations. Featuring a straight connector type and durable tin plating, this terminal ensures secure and reliable connections for 25 mm² conductors with an M5 stud size. Ideal for industrial wiring, switchgear assembly, and power distribution applications where electrical conductivity and corrosion resistance are essential.

## Long description

The Klauke 4R5 Tubular Ring Lug is a high-quality electrical terminal engineered for professional wiring and secure power distribution applications. Designed specifically for 25 mm² conductors and an M5 stud size, this reliable component ensures optimal electrical connectivity and long-term mechanical stability in demanding industrial environments.
Advantages
This tubular ring lug features durable tin plating that provides exceptional resistance against corrosion and oxidation, ensuring a stable connection over extended periods of use. The straight connector design facilitates straightforward alignment and mounting during installation. Manufactured by Gustav Klauke GmbH, the component meets high standards of electrical engineering, delivering consistent performance in switchgear assembly and industrial wiring tasks.
Suitable for
Electrical installations requiring 25 mm² wire connection
Switchgear assembly and control panel wiring
Industrial power distribution systems
Professional maintenance and repair projects
When it may not be suitable
This product may not be suitable for wire sizes significantly larger or smaller than 25 mm², as an improper fit can compromise the integrity of the electrical connection. Additionally, applications requiring bolt sizes other than M5 will not be compatible with this specific ring lug.
Key specifications
Product type: Tubular ring lug
Connector contacts plating: Tin
Connector type: Straight
Compatible wire cross-section: 25 mm²
Stud size compatibility: M5
How to use
To use the Klauke 4R5 tubular ring lug, first prepare the wire by stripping the insulation to the appropriate length to expose the 25 mm² conductor. Insert the stripped conductor fully into the tubular barrel of the terminal. Secure the conductor using a compatible crimping tool designed for tubular cable lugs to ensure a permanent and reliable mechanical and electrical bond. Finally, place the ring terminal over the M5 threaded stud and fasten it securely with a matching nut or fastener.
What to consider before purchase
Verify that your conductor cross-section matches the 25 mm² specification
Check that your mounting bolt corresponds to the M5 stud size
Ensure you have the correct crimping tool for tubular ring lugs
Confirm the environmental conditions match the tin-plated brass or copper capabilities
Usage recommendations
Always use the manufacturer-approved crimping tool to attach the 25 mm² wire to the Klauke 4R5 terminal, and ensure the M5 stud is tightened to the recommended torque specification for safe and reliable electrical operation.

## Specifications

| Feature | Value |
|---|---|
| Material | Copper |
| Product colour | Stainless steel |
| Connector type | Straight |
| Connector contacts plating | Tin |
| Product type | Tubular ring lug |
| Thread size | M6 |
| Cross-section | 25 mm² |

## FAQ

### How much does the Klauke 4R5 Tubular Ring Lug Terminal cost, and is it available for purchase?

The price is 36.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 200 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 13.08.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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 Gustav Klauke GmbH 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 Gustav Klauke GmbH 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

## Image

https://aio.lv/img/cache/product/12591954/68975449_large.webp