# Isolation switch Legrand FRX 403 3-pole 125 A (model 406539)

**URL:** https://aio.lv/en/product--legrand-406539--12107020
**Data updated:** 2026-03-20 09:57 (EET)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 406539
**EAN:** 5905954937172
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 232.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 192.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-406539--12107020

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

Legrand FRX 403 is a 3-pole isolation switch with a rated current of 125 A (model 406539). Designed to provide mechanical disconnection of three-phase circuits, it is used for safe maintenance, emergency isolation and equipment protection. Suitable for installation in electrical panels and switchboards where a reliable manual disconnect is required.

## Long description

Legrand FRX 403 is a 3-pole isolation switch rated for 125 A, designed to provide reliable mechanical disconnection of three-phase electrical circuits. It is intended for use in distribution boards, switchboards and electrical panels where a clearly visible and manually operated disconnect is required for safe maintenance, emergency isolation and equipment protection. The robust construction ensures stable operation under normal industrial and commercial conditions.
Advantages
The switch offers simple manual operation with positive open and closed positions, ensuring clear indication of circuit status. Its 3-pole design enables simultaneous disconnection of all phases, reducing the risk of dangerous backfeed during service. The device is compact enough for panel integration while providing a rated current capability suitable for many commercial and light industrial electrical installations.
Suitable for
 Manual disconnection of three-phase circuits in distribution boards and switchboards
 Safe isolation for maintenance and repair work
 Emergency isolation to protect personnel and equipment
 Installation in commercial buildings, small workshops and light industrial sites
Key specifications
 Configuration: 3-pole mechanical isolation switch
 Rated current: 125 A
 Function: manual on/off isolation with visible contact position
 Intended use: three-phase circuits
 Mounting: panel or switchboard installation
How to use
Install the isolation switch in accordance with local electrical codes and the panel manufacturer’s instructions, ensuring appropriate conductor sizes and secure terminal connections for 125 A operation. Before performing maintenance, switch the device to the off (open) position and verify the absence of voltage with a suitable tester. Lock-out/tag-out measures can be applied to the handle where required to prevent accidental re-closure during work.
Usage recommendations
Use appropriate torque settings for terminal screws and confirm that cables and lugs are rated for the switch’s current. Periodically inspect the handle movement and terminal tightness, and verify operation under no-load conditions after installation. For environments with specific temperature, humidity or ingress protection requirements, select compatible panel enclosures and follow Legrand guidance for safe installation.

## FAQ

### How much does the Isolation switch Legrand FRX 403 3P 125 A cost, and is it available for purchase?

The price is 232.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 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 21.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Isolation switch Legrand FRX 403 3P 125 A be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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/12107020/67643479_large.webp