# Heat-Shrink Sleeve 3M SKR3 125/50 for 120–400 mm² Cables, Black

**URL:** https://aio.lv/en/product--3m-skr3-12550--12106631
**Data updated:** 2026-03-20 09:57 (EET)
**Category:** Network Equipment Accessories
**Manufacturer:** 3M
**Manufacturer code:** SKR3 125/50
**EAN:** 5907569523603
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.99 €
**Prices and availability valid until:** 2026-08-12 23:59
**Price without VAT (21%):** 19.00 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--3m-skr3-12550--12106631

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.07.2026 | free |
| Pickup points | 04.08.2026 | 1.89 EUR |
| Courier delivery to door | 04.08.2026 | 4.99 EUR |

## Summary description

3M SKR3 125/50 heat-shrink sleeve designed for cable joints and insulation repair on conductors with cross-sections from 120 to 400 mm². Black, tubular shrinkable protection that provides electrical insulation and mechanical protection for medium and large cable sizes. Suitable for installation in power distribution, industrial and maintenance applications where durable, compact cable termination or splice protection is required.

## Long description

3M SKR3 125/50 heat-shrink sleeve is a black, tubular shrinkable protection designed for cable joints and insulation repair on conductors with cross-sections from 120 to 400 mm². The sleeve provides electrical insulation and mechanical protection for medium and large cable sizes, creating a durable, compact covering for splices and terminations used in power distribution, industrial installations and maintenance operations.
Advantages
The heat-shrink sleeve offers reliable dielectric insulation and resistance to mechanical abrasion once properly installed. Its shrinkable construction conforms tightly to the cable profile, reducing voids and improving moisture resistance. The product is engineered for straightforward field application and delivers a neat, low-profile finish that helps protect cable joints from environmental influences and handling stresses.
Suitable for
 Repairing or insulating cable splices and joints on 120–400 mm² conductors
 Power distribution networks and underground connections
 Industrial installations and equipment rooms
 Maintenance and emergency cable repairs
Key specifications
 Colour: black
 Compatible conductor cross-section range: 120–400 mm²
 Form: tubular heat-shrink sleeve
 Primary function: electrical insulation and mechanical protection
 Typical applications: splice protection, termination covering, insulation repair
How to use
Prepare cable surfaces by cleaning and removing contaminants, ensure conductors are properly connected and insulated, then position the sleeve centrally over the splice or damaged area. Apply controlled heat evenly along the length of the sleeve using an appropriate heat gun or torch technique until the sleeve shrinks tightly around the cable and conforms to the conductor profile. Allow the sleeve to cool to room temperature before subjecting the joint to mechanical strain or electrical testing.
Usage recommendations
Use appropriate personal protective equipment and follow safe hot-work practices. Select a compatible heat source and apply heat gradually to avoid overheating adjacent materials. Verify that the sleeve fits the cable cross-section prior to installation and perform post-installation inspection to confirm full shrinkage and correct adhesion.

## FAQ

### How much does the 3M SKR3 125/50 Heat-Shrink Sleeve for 120–400 mm² cost, and is it available for purchase?

The price is 22.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 30.07.2026 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, 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 3M 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 3M 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/12106631/67643152_large.webp