# Legrand 406280 Undervoltage Release 24-48V AC/DC for TX3, DX3, and FRX Series

**URL:** https://aio.lv/en/product--legrand-406280--12469174
**Data updated:** 2026-05-18 09:41 (EEST)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 406280
**EAN:** 3245064062800
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 59.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 49.58 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-406280--12469174

## 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

The Legrand 406280 is an undervoltage release designed for use with TX3, DX3, and FRX series circuit breakers. It operates within a voltage range of 24-48V AC/DC. This auxiliary component is essential for monitoring voltage levels and triggering a trip when the supply voltage drops below a specified threshold, ensuring reliable protection and safety in electrical distribution systems.

## Long description

The Legrand 406280 Undervoltage Release is a specialized auxiliary component engineered to enhance the safety and functionality of electrical distribution systems. Designed for seamless integration with TX3, DX3, and FRX series circuit breakers, this device monitors supply voltage levels and automatically triggers a trip when the voltage drops below a defined threshold. It serves as a critical safety mechanism, ensuring that connected equipment is protected during power instability or mains voltage drops.
Advantages
This undervoltage release offers a robust solution for remote tripping, providing reliable performance in various electrical configurations. Its design allows for easy installation on the left-hand side of compatible devices without the need for specialized tools, simplifying the assembly process. The unit is compact, occupying only one module of space, and supports the insertion of supply busbars, which helps maintain a clean and organized electrical panel layout. By enabling remote tripping via a normally closed push button or automatic voltage monitoring, it significantly improves the control and safety of your electrical infrastructure.
Suitable for
Monitoring mains voltage drops in electrical distribution systems
Remote tripping of MCBs, RCBOs, RCCBs, and remote trip isolating switches
Integration with TX3, DX3, and FRX series circuit breakers
Applications requiring safety-critical power disconnection during low voltage events
When it may not be suitable
This device is not intended for use with circuit breakers outside of the specified TX3, DX3, and FRX series. It is also not suitable for applications requiring voltage monitoring outside the 24-48V AC/DC range, as attempting to use it with incompatible voltage levels may result in failure to trigger or damage to the component.
Key specifications
Operating voltage: 24-48V AC/DC
Compatibility: TX3, DX3, and FRX series devices
Installation position: Left-hand side
Module width: 1 module
Mounting: Tool-free attachment to the main device
How to use
The Legrand 406280 is designed for straightforward installation. It attaches directly to the left-hand side of your compatible circuit breaker or isolating switch without requiring any tools. Once physically joined, the device is ready to monitor the supply voltage. For remote tripping functionality, you can wire a normally closed push button to the unit. Ensure that the system voltage is within the 24-48V AC/DC range before energizing the circuit to prevent operational errors.
What to consider before purchase
Verify that your existing circuit breaker belongs to the TX3, DX3, or FRX series.
Ensure your control circuit provides a stable 24-48V AC/DC supply.
Confirm that you have sufficient space on the left side of your current device for the 1-module wide auxiliary.
Check if you already have a remote tripping auxiliary installed, as each device supports a maximum of one.
Usage recommendations
Always ensure the main power supply is disconnected before installing or modifying any electrical components. Consult a qualified electrician if you are unsure about the compatibility or wiring requirements of your specific electrical distribution system.

## Specifications

### Packaging data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Legrand 406280 Undervoltage Release for TX3, DX3, FRX cost, and is it available for purchase?

The price is 59.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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/12469174/68789248_large.webp