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

**URL:** https://aio.lv/en/product--legrand-412940--12046872
**Data updated:** 2026-03-12 19:29 (EET)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 412940
**EAN:** 3414970795359
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 30.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-412940--12046872

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Legrand 412940 is a single circuit breaker with rated input current 20 A and input voltage range 100–400 V in a white housing. Designed for circuit protection in residential and light commercial electrical installations, it interrupts overloads and short circuits. Suitable for mounting in distribution boards to protect circuits and connected equipment.

## Long description

Legrand 412940 is a single-pole circuit breaker rated for 20 A and designed to operate within an input voltage range of 100–400 V. Housed in a white enclosure, this device provides overcurrent and short-circuit protection for residential and light commercial electrical circuits. It is intended for mounting in standard distribution boards to isolate faulty circuits and protect wiring and connected equipment.
Advantages
The breaker combines a compact form factor with standardized mounting compatibility, enabling straightforward installation in distribution panels. Its 20 A rating and wide operating voltage range make it suitable for a variety of low-voltage applications, while the white housing supports unobtrusive integration into typical indoor electrical cabinets. The mechanism responds to overloads and short circuits to minimize risk to wiring and devices.
Suitable for
Protecting individual branch circuits in residential electrical panels
Overcurrent protection for lighting circuits and small appliance circuits
Use in light commercial or office electrical installations
Key specifications
Number of poles: single-pole
Rated current: 20 A
Operating voltage range: 100–400 V
Function: overcurrent and short-circuit protection
Color: white housing
Mounting: designed for standard distribution board installation
How to use
Before installation, isolate the supply and verify compliance with local electrical codes. Mount the breaker on the distribution board rail according to the board manufacturer’s instructions and connect the supply conductor to the breaker’s input terminal and the load conductor to the output terminal, ensuring proper tightening of terminals and correct polarity. After installation, restore supply and perform functional tests by switching the breaker on and simulating expected loads, verifying it trips under fault conditions. Use only compatible complementary devices and terminals specified for the distribution board.
Usage recommendations
Periodically inspect terminals for secure connections and signs of overheating. Match the breaker rating to the circuit wiring and the connected load; do not use a higher-rated breaker to mask wiring faults. If the breaker trips frequently, identify and resolve the underlying overload or short-circuit condition before replacing or resetting the device.

## Specifications

| Feature | Value |
|---|---|
| Input current | 20 |

### Power

| Feature | Value |
|---|---|
| Input voltage | 100/400 |

### Design

| Feature | Value |
|---|---|
| Product colour | White |

## FAQ

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

The price is 36.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 06.07.2026 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### 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/12046872/67598683_large.webp