# Circuit breaker Legrand Tx3 B10A 3-pole 6 kA 3M (403400)

**URL:** https://aio.lv/en/product--legrand-403400--3936893
**Data updated:** 2026-03-20 09:44 (EET)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 403400
**EAN:** 3414970387509
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 22.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-403400--3936893

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Legrand Tx3 B10A is a 3-pole miniature circuit breaker with B characteristic and 10 A rated current. Designed for short-circuit breaking capacity up to 6 kA, three-module (3M) width for DIN-rail mounting. Used to protect electrical circuits in residential and commercial installations from overload and short circuit, suitable for distribution boards.

## Long description

Legrand Tx3 B10A 3-pole miniature circuit breaker is a three-module protective device designed for DIN-rail distribution boards. With a B tripping characteristic and a rated current of 10 A, this breaker interrupts fault currents reliably and is intended for protection of circuits in residential and light commercial electrical installations. The device provides a short-circuit breaking capacity up to 6 kA and a compact three-module width for space-efficient panel layouts.
Advantages
The Tx3 B10A offers consistent thermal-magnetic tripping behavior suitable for general-purpose circuits, combining protection against overload and short circuits in a single compact unit. Its three-pole design ensures simultaneous switching and protection of all phases in three-phase systems, reducing the risk of phase imbalance during fault clearing. The modular form factor simplifies installation in standard DIN-rail cabinets and supports tidy, space-saving distribution board design.
Suitable for
 Protection of lighting and socket circuits in residential properties
 Protection of small motors and general-purpose loads in light-commercial installations
 Use as phase protection in three-phase branch circuits
 Retrofit or new-install distribution board applications requiring a compact 3-module breaker
Key specifications
 Poles: 3-pole configuration for three-phase protection
 Tripping characteristic: B curve (suitable for resistive and light inductive loads)
 Rated current: 10 A
 Breaking capacity: up to 6 kA short-circuit withstand
 Width: 3 modules (3M) for DIN-rail mounting
 Mounting: standard TH35 DIN-rail compatible
How to use
Install the breaker on a standard DIN-rail inside the distribution board, ensuring proper phase alignment and secure terminal connections according to local electrical codes. Tighten line and load conductors to the manufacturer-recommended torque and verify that the protective device is correctly rated for the connected circuit. After installation, restore supply and test the breaker operation by applying load and verifying that the device remains closed under normal conditions and trips when an overload or short-circuit occurs.
Usage recommendations
Confirm compatibility with the upstream protection and coordination requirements of the installation, and ensure conductor sizes and cable types match the 10 A rated current. For three-phase circuits, ensure simultaneous disconnection requirements are met and consider coordination with residual-current devices or upstream breakers where required by regulations.

## FAQ

### How much does the Legrand Tx3 B10A 3‑pole circuit breaker cost, and is it available for purchase?

The price is 27.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 155 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 03.07.2026 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/3936893/47652503_large.webp