# Single-pole installation switch MONTIS EXTENSA MT055B WP-1F — single-pole control for electrical circuits

**URL:** https://aio.lv/en/product--montis-mt055b--11750967
**Data updated:** 2026-03-08 15:43 (EET)
**Category:** Smart Switches
**Manufacturer:** MONTIS
**Manufacturer code:** MT055B
**EAN:** 5901811404801
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--montis-mt055b--11750967

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

MONTIS EXTENSA MT055B WP-1F is a single-pole installation switch designed for control of one electrical phase in household and commercial installations. It provides a single-pole switching function for lighting or small loads, fits standard installation boxes and faceplates, and is intended for mounting in electrical circuits where single-pole interruption is required.

## Long description

MONTIS EXTENSA MT055B WP-1F is a single-pole installation switch designed to interrupt and restore a single phase in household and commercial electrical circuits. It is intended for on/off control of lighting and small resistive or inductive loads where single-pole switching is acceptable. The switch is compatible with standard installation boxes and faceplates, allowing straightforward replacement or new installation in wall-mounted switch panels.
Advantages
The single-pole design provides a compact and cost-effective solution for controlling one electrical phase. The module fits standard mounting dimensions and faceplates, enabling quick installation without special modifications. Construction and contacts are suited for frequent on/off cycles typically found in lighting control, and the product delivers reliable mechanical operation with straightforward wiring.
Suitable for
Control of lighting circuits in homes, offices and retail spaces
On/off switching of small appliances and resistive loads
Retrofit replacements for existing single-pole switches in standard wall boxes
Use in switch panels where only one phase needs interruption
Key specifications
Function: single-pole on/off switching (one phase interruption)
Mounting: standard wall box and faceplate compatible
Application: indoor electrical installations for lighting and small loads
Operation: manual rocker/actuator for on/off control
Design: compact module suitable for flush mounting
How to use
Turn off power at the distribution board before installation. Remove the existing switch from the wall box if replacing, connect the live (phase) conductor to the switch’s input terminal and the switched live to the output terminal; ensure neutral is left uninterrupted if single-pole switching is required. Secure the device in the mounting box and attach the faceplate. Restore power and test the switch by operating the rocker to verify correct on/off function of the connected circuit.
Usage recommendations
Verify that the switch rating matches the load type and current in the circuit. For lighting circuits with multiple lamps or mixed loads, ensure cumulative current does not exceed the switch’s contact rating. Use this single-pole switch where isolating only the phase is acceptable and where full disconnection of neutral is not required by local regulations. If in doubt, consult a qualified electrician.

## FAQ

### How much does the Single-pole switch MONTIS EXTENSA MT055B cost, and is it available for purchase?

The price is 5.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 184 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 08.07.2026 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 MONTIS 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 MONTIS 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/11750967/67129663_large.webp