# Circuit breaker Legrand Tx3 403398 B6A 3-pole 6 kA

**URL:** https://aio.lv/en/product--legrand-403398--4760475
**Data updated:** 2026-02-12 14:12 (EET)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 403398
**EAN:** 3414970387462
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 25.20 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-403398--4760475

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

Three-pole circuit breaker Legrand Tx3 403398 B6A with 6 kA breaking capacity. Designed for protection of electrical circuits against overloads and short circuits in three-phase installations. Compact modular device suitable for distribution boards, offering reliable switching, thermal-magnetic tripping (B curve) and straightforward DIN-rail mounting for residential and commercial use.

## Long description

The Legrand Tx3 3-pole circuit breaker B6A provides thermal-magnetic protection for three-phase electrical installations. Designed for mounting in modular distribution boards, this compact device interrupts fault currents and limits overloads up to a specified breaking capacity. The B curve characteristic offers fast disconnection for short-circuit events while maintaining tolerance for temporary inrush currents from motors and transformers, making it suitable for mixed residential and light-commercial electrical circuits.
Advantages
The device combines thermal and magnetic tripping in a single compact module, ensuring reliable overload and short-circuit protection. Its three-pole design allows simultaneous disconnection of all phases to maintain system safety. The compact form factor and DIN-rail compatibility simplify installation and save space in distribution boards. The specified breaking capacity ensures secure interruption of fault currents typical for domestic and small commercial systems.
Suitable for
Protecting three-phase circuits in residential distribution boards
Small commercial and light industrial installations with moderate fault levels
Circuits with motors or equipment that produce temporary inrush currents
Retrofit or new-build installations requiring compact DIN-rail breakers
Key specifications
Poles: 3-pole configuration for three-phase protection
Tripping type: Thermal-magnetic with B curve characteristic
Rated current: 6 A
Breaking capacity: 6 kA
Mounting: Standard DIN-rail modular mounting for distribution boards
Usage: Designed for protection against overloads and short circuits in three-phase circuits
How to use
Install the circuit breaker on a standard DIN-rail inside the distribution board, ensuring correct phase and neutral wiring according to local electrical codes. Connect supply and load conductors to the appropriate terminals and tighten terminals to the manufacturer’s recommended torque. After installation, switch the device to the ON position and verify correct operation by checking circuit continuity and performing any required commissioning tests. For safety, isolate supply power before installation or maintenance and follow applicable regulations.
Usage recommendations
Use this circuit breaker where a B curve thermal-magnetic characteristic is appropriate—typical for general-purpose circuits and circuits with moderate inrush currents. Verify that the rated current and breaking capacity are suitable for the installation’s prospective fault level and coordinate with upstream and downstream protection devices for selective tripping where required.

## FAQ

### How much does the Circuit breaker Legrand Tx3 403398 B6A 3-pole cost, and is it available for purchase?

The price is 30.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 124 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 17.07.2026 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/4760475/66633943_large.webp