# Legrand TX3 Miniature Circuit Breaker 3P 20A Type B 10kA

**URL:** https://aio.lv/en/product--legrand-404127--12445034
**Data updated:** 2026-05-18 02:44 (EEST)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 404127
**EAN:** 3414970392718
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 39.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 33.05 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-404127--12445034

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Legrand TX3 is a 3-pole miniature circuit breaker designed for reliable electrical protection. It features a 20 A rated current, Type B tripping characteristic, and a 10 kA breaking capacity. Operating at 240-415 V and 50-60 Hz, this IP20-rated device is ideal for residential and commercial distribution boards, ensuring safety against overloads and short circuits in electrical installations.

## Long description

The Legrand TX3 Miniature Circuit Breaker 3P 20A Type B 10kA is a high-quality protective device engineered to ensure the safety and reliability of electrical installations. Designed for three-phase systems, this circuit breaker provides effective protection against overloads and short circuits, making it an essential component for modern distribution boards in both residential and commercial environments.
Advantages
This miniature circuit breaker stands out due to its robust construction and precise tripping characteristics. The Type B curve ensures rapid response to short circuits while maintaining stability during standard operational surges. Its compact design allows for efficient use of space within electrical enclosures, and the high breaking capacity of 10 kA provides significant safety margins for various electrical loads. The device is built to meet rigorous international standards, ensuring long-term durability and consistent performance under varying electrical conditions.
Suitable for
Residential electrical distribution boards
Commercial building power management
Protection of lighting and heating circuits
Three-phase electrical installations
When it may not be suitable
This device is not intended for use in environments where the ambient temperature or humidity exceeds the specified IP20 protection rating, as it lacks resistance to water ingress and dust. Furthermore, it is not suitable for applications requiring a different tripping curve, such as Type C or D, which are necessary for high-inrush current equipment like large motors or transformers.
Key specifications
Rated current: 20 A
Number of poles: 3
Tripping characteristic: Type B
Breaking capacity: 10 kA
Voltage range: 240 - 415 V
Frequency: 50 - 60 Hz
Protection rating: IP20
Dimensions: 88 mm height, 53.1 mm width, 77.8 mm depth
How to use
The Legrand TX3 should be installed by a qualified electrician onto a standard DIN rail within a distribution board. Ensure that the power supply is disconnected before installation. The device is mounted by snapping it onto the rail and securing the electrical connections to the input and output terminals. Once installed, verify that all connections are tightened to the manufacturer's torque specifications to prevent overheating.
What to consider before purchase
Verify that the 20 A current rating matches your circuit requirements.
Ensure the 3-pole configuration is compatible with your three-phase system.
Check that the available space in your distribution board accommodates the 53.1 mm width.
Confirm that the Type B tripping characteristic is appropriate for your specific connected loads.
Usage recommendations: Regularly inspect the circuit breaker for signs of wear or thermal damage. Test the device periodically to ensure the mechanical tripping mechanism remains functional and that the electrical connections remain secure over time.

## 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 | 20 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 3P 20A Type B Miniature Circuit Breaker cost, and is it available for purchase?

The price is 39.99 € (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 14.07.2026 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/12445034/68779500_large.webp