# Junction box for thermal insulation Kopos MDZ 300 KB 120×120×315 mm

**URL:** https://aio.lv/en/product--kopos-mdz-300kb--11989118
**Data updated:** 2026-03-11 18:21 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Kopos
**Manufacturer code:** MDZ 300\_KB
**EAN:** 8595568930804
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 32.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 27.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kopos-mdz-300kb--11989118

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Kopos MDZ 300 KB is a junction box designed for installation in external thermal insulation systems. Its dimensions are 120×120×315 mm, providing space for cable connections and electrical components within insulated façades. The product suits recessed mounting in insulation layers, helps organize wiring runs and secures terminations while maintaining thermal system integrity.

## Long description

Kopos MDZ 300 KB 120×120×315 mm is a junction box designed for recessed installation in external thermal insulation systems. The box provides an internal cavity for cable terminations and small electrical components while maintaining the continuity of insulated façades. Its rectangular form and specified internal volume are intended to fit within insulation layers and allow reliable protection of connection points against mechanical stress and weather influence when installed according to façade insulation practice.
Advantages
The junction box is manufactured from material suitable for use inside external thermal insulation systems and features a shape and depth that permit organized routing of conductors. It supports recessed mounting without disrupting the thermal layer when correctly embedded, and its dimensions offer sufficient working space for standard connection tasks. The product facilitates neat termination of cables and contributes to reduced risk of thermal bridging when integrated properly in insulation assemblies.
Suitable for
 Recessed mounting inside external thermal insulation composite systems (ETICS)
 Housing electrical cable junctions and terminations within insulated façades
 Installation of small electrical components and connection blocks inside wall insulation
 Applications requiring maintenance of thermal integrity around junction points
Key specifications
 External application: designed for use inside external thermal insulation systems
 Shape and size: rectangular box with nominal face dimensions 120 × 120 mm
 Depth: 315 mm, providing expanded internal volume for cable routing and terminations
 Material: durable plastic suitable for embedding in insulation layers (non-metallic)
 Mounting method: recessed installation into insulation layer with plaster or adhesive covering
How to use
Install the junction box by recessing it into the prepared cavity within the insulation layer so that the front face aligns with the finished insulation surface. Secure the box according to the insulation system manufacturer's instructions using adhesive or mechanical fixing appropriate for the insulation material. Route and terminate conductors inside the box, leaving required clearances for connection blocks and ensuring that any openings are sealed in line with external moisture and fire safety requirements. After wiring, cover and finish the box opening with the compatible finishing layer of the thermal insulation system.
Usage recommendations
Use this junction box only with compatible external thermal insulation systems and follow local electrical codes. Ensure proper sealing and mechanical fixation to preserve thermal performance and weather resistance. For installations involving higher ingress protection or specific fire rating requirements, select additional covers or accessories rated for those conditions.

## FAQ

### How much does the Junction box Kopos MDZ 300 KB cost, and is it available for purchase?

The price is 32.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 44 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 14.07.2026 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 Kopos 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 Kopos 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/11989118/67444530_large.webp