# Miniature circuit breaker Legrand TX3 Type B, 50 A, 240–415 V, 50–60 Hz, IP20

**URL:** https://aio.lv/en/product--legrand-403407--12108649
**Data updated:** 2026-03-20 09:59 (EET)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 403407
**EAN:** 3414970387646
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 52.49 €
**Prices and availability valid until:** 2026-08-03 23:59
**Price without VAT (21%):** 43.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-403407--12108649

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Legrand TX3 miniature circuit breaker Type B rated for 50 A and designed for supply voltages 240–415 V at 50–60 Hz. Provides overcurrent protection with Type B tripping characteristics and IP20 protection. Compact dimensions (W 53.1 mm, D 77.8 mm, H 88 mm) make it suitable for residential and light commercial distribution boards and protective circuits.

## Long description

Legrand TX3 miniature circuit breaker Type B, rated 50 A, designed for supply voltages from 240 to 415 V and 50–60 Hz, provides overcurrent protection for three-pole circuits in residential and light commercial installations. The device features Type B tripping characteristics suitable for circuits with predominantly resistive loads and offers IP20 protection against contact with live parts. Compact dimensions (W 53.1 mm, D 77.8 mm, H 88 mm) allow installation in standard distribution boards and modular switchgear.
Advantages
The breaker provides reliable overcurrent protection with predictable Type B tripping behaviour, allowing fast disconnection on low levels of fault current while maintaining selectivity with upstream protection. Its compact, modular form factor simplifies mounting in multi-way consumer units and helps save space in crowded panels. IP20-rated enclosure ensures basic protection against accidental contact during routine installation and servicing.
Suitable for
 Residential distribution boards and home electrical circuits
 Small commercial premises and light-duty electrical installations
 Protection of circuits with mainly resistive loads (lighting, heaters, small motors)
 Three-phase branch circuit protection where Type B tripping is required
Key specifications
 Rated current: 50 A
 Rated supply voltage: 240–415 V
 Frequency: 50–60 Hz
 Poles: 3 (three-pole)
 Tripping characteristic: Type B
 Degree of protection (housing): IP20
 Mounting: DIN-rail compatible modular device
 Dimensions (W × D × H): 53.1 mm × 77.8 mm × 88 mm
How to use
Install the Legrand TX3 Type B breaker on a compatible DIN rail inside the distribution board according to local electrical standards and wiring diagrams. Connect conductors to the line and load terminals, ensuring correct tightening torques and secure connections. Verify correct orientation and that the breaker rating matches the circuit conductors and downstream devices. After installation, test the circuit under no-load conditions and verify that the breaker switches correctly and provides expected overcurrent protection.
Usage recommendations
Use this breaker for circuits with predominantly resistive loads and where Type B tripping characteristics are specified. Match the 50 A rating to conductor size and downstream equipment, and coordinate with upstream protection to maintain selectivity. Ensure installation and commissioning are performed by a qualified electrician and that periodic inspection follows applicable regulations.

## Specifications

| Feature | Value |
|---|---|
| Type | Type B |
| Storage temperature (T-T) | -40 - 70 |
| Pollution degree | 2 |
| Circuit breaker type | Miniature circuit breaker |
| Dielectric strength | 4000 V |
| Energy limiting class | 3 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 88 mm |
| Width | 53.1 mm |
| Depth | 77.8 mm |

### Design

| Feature | Value |
|---|---|
| International Protection (IP) code | IP20 |

### Power

| Feature | Value |
|---|---|
| Input voltage | 240 - 415 |
| Rated current | 50 A |
| Input frequency | 50 - 60 |
| Rated voltage | 400 V |

### Features

| Feature | Value |
|---|---|
| Number of poles | 3 |
| Installation type | DIN-rail |

### Technical details

| Feature | Value |
|---|---|
| Doesn't contain | Halogen |

## FAQ

### How much does the Legrand TX3 circuit breaker 403407 cost, and is it available for purchase?

The price is 52.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 23.07.2026 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

## Image

https://aio.lv/img/cache/product/12108649/67654048_large.webp