Circuit breaker Legrand Tx3 B20A 3-pole

Name: Circuit breaker Legrand Tx3 B20A 403403
Brand: Legrand
SKU: 3784478
Price: 22.49 EUR
Availability: InStock

Shop for gifts early

Save time and money with our discounts!

Circuit breaker Legrand Tx3 B20A 3-pole 6kA

Keep track of price changes You keep track of price changes

Scan qr code below, or type in manually: {{secretKey}}

Forgot password? Registration

Short description

Legrand Tx3 B20A is a 3-pole circuit breaker with B characteristic and 20 A nominal current, rated short-circuit breaking capacity 6 kA. Designed for protection of three-phase circuits against overloads and short circuits in residential and light commercial installations. Fits standard DIN-rail panels and provides reliable upstream protection for circuits and equipment.

Available at price 22.49 €: 606 pcs.

Total available for order: 630 pcs.

Warranty: 2 Years

SKU: 3784478

Learn more

Deliver the order:

{{ userCountryName }}

to the Customer Service Center at Kengaraga 2b, Riga

06.07.2026 {{selectedOffer.officeDeliveryString}}

free

All delivery methods Hide details

Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

06.07.2026 {{selectedOffer.officeDeliveryString}}

free

Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

09.07.2026 {{selectedOffer.courierDeliveryString}}

From 4.99 € (Weight: 1.00 kg)

Parcel couriers

Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts nodaļa

09.07.2026 {{selectedOffer.parcelStationDeliveryString}}

From 1.99 €

More about delivery methods

Payment Methods:

Bank transfer, Bank cards on-line, Apple Pay, Google Pay

More about payment methods

You saving {{productBundleYouSave | formatAmount}}

Product information

Description

LEGRAND TX3 LS B20A 3-pole miniature circuit breaker, model 403403, rated 20 A with 6 kA breaking capacity and 3 modules (3M). Designed to protect three-phase circuits against overloads and short circuits in residential and light commercial installations, it fits standard DIN-rail distribution boards and works with common accessories.

Advantages

The LEGRAND TX3 LS B20A offers reliable overcurrent protection for three-phase installations in a compact 3-module body that saves space in distribution panels. With a 6 kA interrupting capacity and B characteristic (B20A), the breaker is suitable for typical residential and light commercial circuits and is compatible with standard DIN-rail mounting and accessories for straightforward installation and maintenance.

Suitable for

Protection of three-phase feeder circuits in homes and small commercial premises
Installation in standard DIN-rail distribution boards
Upstream protection for branch circuits and equipment with B-curve characteristics

Key specifications

Manufacturer: LEGRAND
Model / MPN: 403403
Series: TX3 LS
Poles: 3-pole
Rated current: 20 A (B curve)
Breaking capacity: 6 kA
Width: 3 modules (3M)
EAN: 3414970387561

How to use

Mount the LEGRAND TX3 LS B20A on a standard DIN rail inside the electrical distribution board. Connect the three phase conductors to the corresponding terminals and tighten them to the torque values specified by local regulations or the device documentation. Use the breaker to protect circuits from overloads and short circuits; after wiring, test the device to ensure correct operation and verify that it trips under fault conditions.

Usage recommendations

Check compatibility with your distribution board and ensure coordination with upstream protection. Follow national wiring regulations and, if necessary, use a qualified electrician for installation and testing.

Description

Machine translation. Load original

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

Warehouse	Stock	Delivery to the store	Store Price
WH355	606	06.07.2026 Best delivery	22.49 € Best price

Available only for legal entities
Warehouse	Stock	Delivery to the store	Store Price
WH109	24	15.07.2026	47.49 €

22.49 €

Stock: 606

Delivery Date: 06.07.2026 Best delivery

Warehouse: WH355

Available only for legal entities

47.49 €

Stock: 24

Delivery Date: 15.07.2026

Warehouse: WH109

Customer reviews

Show all reviews

Customer questions

FAQ

How much does the Circuit breaker Legrand Tx3 B20A 3-pole cost, and is it available for purchase?

The price is 22.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 630 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

Show all questions