Legrand TX3 50A Type D Miniature Circuit Breaker

Name: Legrand TX3 Miniature Circuit Breaker 403726
Brand: Legrand
SKU: 12455577
Price: 20.99 EUR
Availability: InStock

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Legrand TX3 Miniature Circuit Breaker 1P, 50A, Type D, 6kA

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Short description

The Legrand TX3 miniature circuit breaker (403726) is a high-quality electrical protection device designed for 1-pole circuits. It features a 50A rated current, Type D tripping characteristic, and a 6kA breaking capacity. Operating at 240-415V and 50-60Hz, this IP20-rated component ensures reliable short-circuit and overload protection for residential and commercial electrical installations.

Available for order: 5 pcs.

Warranty: 2 Years

SKU: 12455577

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Deliver the order:

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to the Customer Service Center at Kengaraga 2b, Riga

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Customer service center

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

06.07.2026 {{selectedOffer.officeDeliveryString}}

free

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From 4.99 €

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From 1.99 €

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Payment Methods:

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Product information

Description

The Legrand TX3 miniature circuit breaker is a professional-grade electrical protection device engineered to safeguard single-pole circuits in both residential and commercial environments. This component provides reliable defense against short circuits and overloads, ensuring the integrity of your electrical installation. With a robust construction and precise engineering, it serves as a critical safety element in modern distribution boards.

Advantages

This circuit breaker offers high operational reliability and consistent performance under standard electrical loads. Its Type D tripping characteristic makes it particularly effective for circuits with high inrush currents, such as those powering motors or large transformers. The compact design allows for efficient use of space within electrical enclosures, while the high-quality materials ensure long-term durability and safety for your electrical infrastructure.

Suitable for

Residential electrical distribution boards
Commercial building power circuits
Protection of circuits with high inrush current equipment
Motor control and transformer protection

This device may not be suitable for applications requiring a different tripping curve, such as sensitive electronic equipment that requires Type B or C characteristics. It is also not intended for outdoor use without a protective enclosure, as it carries an IP20 rating, meaning it is not protected against water ingress or harsh environmental conditions.

Key specifications

Rated current: 50 A
Tripping characteristic: Type D
Breaking capacity: 6 kA
Number of poles: 1
Voltage rating: 240-415 V
Frequency: 50-60 Hz
Ingress protection: IP20
Dimensions: 17.8 mm x 77.8 mm x 88 mm

How to use

The device is designed for mounting on a standard DIN rail within a distribution board. Installation should be performed by a qualified electrician in accordance with local electrical regulations. Ensure that the power supply is disconnected before beginning the installation process. The wires should be securely fastened to the terminals, ensuring proper contact to prevent overheating. Once installed, the breaker can be manually toggled to control the circuit.

What to consider before purchase

Verify that the 50A rating matches your circuit requirements
Ensure the Type D characteristic is appropriate for your connected loads
Check available space in your distribution board for the 17.8 mm width
Confirm compatibility with your existing electrical system voltage

Usage recommendations

Always ensure that the circuit breaker is installed in a dry, dust-free environment. Regularly inspect the connections for tightness and check for any signs of thermal discoloration to maintain optimal safety and performance.

All features

Type:: Type D
Storage temperature (T-T):: -40 - 70
Pollution degree:: 2
Circuit breaker type:: Miniature circuit breaker
Dielectric strength:: 4000 V

Power

Input voltage:: 240 - 415
Rated current:: 50 A
Input frequency:: 50 - 60
Rated voltage:: 230 V

Weight & dimensions

Height:: 88 mm
Width:: 17.8 mm
Depth:: 77.8 mm

Design

International Protection (IP) code: Device protection rating against dust and water according to the international IP standard.: IP20

Features

Number of poles:: 1
Installation type:: DIN-rail

Technical details

Doesn't contain:: Halogen

Description

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Customer questions

FAQ

How much does the Legrand TX3 50A Type D Miniature Circuit Breaker cost, and is it available for purchase?

The price is 20.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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.

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