# Heat shrink tube HellermannTyton 323-20400, black, 1 m length, dia 4–12 mm, pack of 15

**URL:** https://aio.lv/en/product--hellermanntyton-323-20400--12223644
**Data updated:** 2026-03-29 16:11 (EEST)
**Category:** Electronics Accessories
**Manufacturer:** HellermannTyton
**Manufacturer code:** 323-20400
**EAN:** 4031026240251
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 19.00 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hellermanntyton-323-20400--12223644

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

HellermannTyton 323-20400 is a black heat shrink tube supplied in 1 m lengths, pack of 15 pieces. The tube covers nominal diameters from 4 mm to 12 mm (minimum/maximum diameters listed) and is intended for insulating and protecting cable joints, harnesses and connectors. Suitable for electrical insulation, strain relief and environmental protection in wiring and repair tasks.

## Long description

HellermannTyton 323-20400 heat shrink tube is a black polyolefin sleeve supplied in 1 m lengths and packaged as 15 pieces. Designed to shrink over a range of conductor and cable diameters, this tubing provides electrical insulation, mechanical protection and environmental sealing for cable joints, harnesses and connector terminations. The tube covers nominal diameters from 4 mm down to a reduced diameter and up to 12 mm before shrinking, allowing flexible use across a range of wiring and repair tasks.
Advantages
The heat shrink tube offers reliable insulation and strain relief for splices and connectors while maintaining a compact profile after shrinking. Its polyolefin construction provides good electrical resistance and mechanical durability against abrasion and handling. Supplied in pre-cut 1 m lengths and packed in multiple pieces, it facilitates efficient inventory use and reduces waste when working on multiple cables or assemblies.
Suitable for
 Electrical insulation of splices and connector joints
 Strain relief for cable transitions and terminations
 Protection against moisture, dust and mechanical wear in wiring harnesses
 Repair and maintenance tasks for automotive, industrial and consumer electronics
Key specifications
 Color: black
 Material: polyolefin (heat-shrinkable)
 Length per piece: 1 m
 Pack quantity: 15 pieces
 Nominal diameter range (before shrinking): covers approximately 4 mm to 12 mm
 Shrink ratio: typical for general-purpose polyolefin tubing (enables secure fit over smaller diameters)
How to use
Slide the appropriate length of tubing over the cable, splice or connector before making the electrical connection when possible. After positioning the tubing over the joint, apply uniform heat with a heat gun or other controlled heat source until the tubing shrinks tightly around the component and conforms to the underlying shape. Allow the tubing to cool and inspect the seal to ensure full contact and coverage of the exposed area.
Usage recommendations
Select a tubing diameter that, before shrinking, easily fits over connectors and assemblies but will contract adequately to form a tight insulation layer. Use a regulated heat gun at an appropriate distance to avoid overheating surrounding components; maintain even motion to achieve uniform shrinkage. For applications requiring enhanced environmental sealing or mechanical protection, consider using adhesive-lined heat shrink variants or additional protective sleeving as needed.

## Specifications

| Feature | Value |
|---|---|
| Type | Heat shrink tube |
| Certification | RoHS |
| Material | Polyolefin |
| Product colour | Black |
| Thickness | 2.5 mm |
| Flame-retardant | No |
| Length | 1 m |
| Maximum diameter | 12 mm |
| Quantity per pack | 15 pc(s) |
| Minimum diameter | 40 mm |

## FAQ

### How much does the Heat shrink tube HellermannTyton 323-20400 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 — 110 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 07.07.2026 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 HellermannTyton 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 HellermannTyton 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/12223644/68117251_large.webp