# Circuit breaker Legrand 412940 — 20 A, 100/400 V, white

**URL:** https://aio.lv/en/product--legrand-le-412940--12059114
**Data updated:** 2026-03-12 19:42 (EET)
**Category:** Other goods
**Manufacturer:** Legrand
**Manufacturer code:** LE-412940
**EAN:** 3414970795342
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 49.99 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 41.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-le-412940--12059114

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.89 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

Legrand 412940 is a single-pole circuit breaker rated for 20 A with operating voltage range 100–400 V. Finished in white, it provides overcurrent protection for residential and light-commercial electrical circuits. Suitable for installation in distribution boards to protect wiring and connected equipment from overloads and short circuits.

## Long description

Legrand 412940 is a single-pole circuit breaker rated at 20 A with an operating voltage range of 100–400 V. Designed for installation in distribution boards, this white-finished protective device monitors current flow and trips when overloads or short circuits occur, helping to protect wiring and connected equipment in residential and light-commercial electrical systems.
Advantages
This single-pole circuit breaker offers reliable overcurrent protection within a 100–400 V operating range and a 20 A nominal current rating. Its compact, standardized form factor fits common DIN-rail distribution boards and facilitates straightforward replacement or retrofitting. The device’s white finish provides a neutral appearance that integrates with typical panel layouts, while its simple mechanical operation delivers predictable and repeatable tripping performance for everyday circuit protection tasks.
Suitable for
 Protection of lighting and socket circuits in homes
 Overcurrent protection for small office or light-commercial installations
 Use in single-phase distribution boards and subpanels
 Replacement of like-for-like single-pole breakers
Key specifications
 Poles: single-pole (1P)
 Rated current: 20 A
 Operating voltage range: 100–400 V
 Tripping function: overcurrent/short-circuit protection (thermal/magnetic or equivalent mechanical trip)
 Mounting: DIN-rail compatible housing for distribution boards
 Finish: white
 Typical application environment: residential and light-commercial electrical circuits
How to use
Install the circuit breaker on a compatible DIN rail inside the distribution board following local electrical codes and safety practices. Connect the supply and load conductors to the designated line and load terminals, ensuring correct tightening torque and secure conductor termination. Verify the breaker’s orientation and that the panel is de-energized during installation. After wiring, restore power and test the circuit by switching the breaker on and off and verifying that protected circuits operate normally; perform a trip test only when safe and in accordance with relevant procedures.
Usage recommendations
Select this 20 A single-pole breaker for circuits whose expected continuous current does not exceed the rated value and where the voltage falls within 100–400 V. Do not exceed the rated current, and ensure coordination with upstream and downstream protective devices. Have installation, commissioning, and any troubleshooting performed by a qualified electrician and follow national wiring regulations and Legrand installation guidance where applicable.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 100/400 |
| Product colour | White |
| Input current | 20 |

## FAQ

### How much does the Circuit breaker Legrand 412940 cost, and is it available for purchase?

The price is 49.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 29.07.2026 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 Legrand 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 Legrand 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

### Where can I download the instructions for Circuit breaker Legrand 412940?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12059114/67591772_large.webp