# Flush-mounted electrical box Kopos KEZ 300 KB for external insulation systems, grey

**URL:** https://aio.lv/en/product--kopos-kez-300-kb--10501510
**Data updated:** 2026-03-07 15:20 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Kopos
**Manufacturer code:** KEZ 300 KB
**EAN:** 8595568930798
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kopos-kez-300-kb--10501510

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Flush-mounted electrical box Kopos KEZ 300 KB designed for use with external wall insulation (ETICS) systems. Finished in grey, this under-plaster mounting box provides a secure enclosure for wiring and fixtures during installation in insulated façades. Suitable for recessed switches, sockets and junctions where compatibility with insulation layers is required.

## Long description

The Kopos KEZ 300 KB flush-mounted electrical box for external insulation systems is a recessed under-plaster mounting box intended for installations in façades with insulation layers. Finished in grey, the box is designed to be embedded into the substrate behind external thermal insulation composite systems (ETICS) to accommodate switches, sockets and junctions while maintaining the required clearance and support for finishing renders.
Advantages
The unit provides a low-profile, robust enclosure that simplifies alignment with the outer insulation and render. Constructed from durable material suitable for embedding, it helps protect wiring connections from mechanical damage during installation and finishing. Its shape and dimensions are compatible with common recessed electrical devices and allow for neat plastering and render application around the mounting point.
Suitable for
 Mounting recessed switches and sockets in insulated exterior walls
 Electrical junctions and connection points behind external render
 New-build and renovation projects using ETICS or other façade insulation systems
 Situations requiring a flush finish with plaster or render over insulation
Key specifications
 Type: flush-mounted (recessed) under-plaster electrical box for insulated façades
 Finish colour: grey
 Intended application: external wall insulation systems and render layers
 Use cases: switches, sockets, junctions behind plaster or render
 Material characteristics: durable, embedding-suitable plastic designed for masonry and insulated panels
How to use
Position the box at the required mounting height and secure it to the substrate according to installation rules for external insulation systems. Ensure the box is level and its front edge is aligned with the planned thickness of the insulation and render so that the device surface will be flush with the finished façade. Run electrical cables into the box via the designated entry points, make connections following applicable wiring regulations, and fit the required recessed device. Complete the installation by applying insulation, adhesive, basecoat and finish render up to the box face, taking care not to obstruct device mounting or ventilation paths.
Usage recommendations
Verify compatibility with the chosen ETICS system and follow local electrical and building codes. Use appropriate fixing methods for the substrate and ensure sufficient clearance for the front plate and cover to achieve a flush finished surface with the render.

## FAQ

### How much does the Kopos KEZ 300 KB flush-mounted electrical box cost, and is it available for purchase?

The price is 29.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 16.07.2026 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/10501510/52615659_large.webp