# Residual current circuit breaker Legrand 402075 — 40 A, 4-pole, 30 mA

**URL:** https://aio.lv/en/product--legrand-402075--3929932
**Data updated:** 2025-12-29 13:52 (EET)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 402075
**EAN:** 3245064020756
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 34.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-402075--3929932

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Legrand residual current circuit breaker model 402075 is a 4-pole protective device rated at 40 A with a 30 mA residual current sensitivity. It monitors leakage currents and disconnects power when imbalance exceeds 30 mA, enhancing protection against electric shock and reducing fire risk. Designed for residential and light commercial distribution boards, it fits standard DIN-rail switchgear and simplifies safety compliance.

## Long description

Legrand residual current circuit breaker model 402075 is a 4-pole protective device rated at 40 A with a residual current sensitivity of 30 mA. It monitors leakage currents and automatically disconnects supply when an imbalance exceeds 30 mA, providing enhanced protection against electric shock and contributing to reduced fire risk. The device is intended for use in residential and light commercial distribution boards and is compatible with standard DIN-rail switchgear.
Advantages
The Legrand 402075 offers reliable earth-fault detection with a 30 mA trip threshold, compact 4-pole design for three-phase plus neutral installations, and a rated current of 40 A suitable for many domestic and small commercial circuits. Its DIN-rail compatibility simplifies installation and integration into existing distribution panels, while automatic disconnection improves overall electrical safety.
Suitable for
Residential electrical distribution boards
Small commercial or light industrial installations
Three-phase supplies with neutral (4-pole applications)
Protection against electric shock and leakage faults
Key specifications
Brand: Legrand
Model / MPN: 402075
Type: Residual current circuit breaker (RCCB / FI)
Poles: 4-pole
Rated current: 40 A
Residual current sensitivity: 30 mA
EAN: 3245064020756
How to use
Mount the 4-pole RCCB on a standard DIN rail in the distribution board and wire the three phase conductors and neutral to the designated terminals according to the electrical schematic and local regulations. Ensure the breaker is installed upstream of the protected circuits and that the supply is de-energized during installation. After wiring, perform an insulation and polarity check, then energize and test the device using the built-in test function or appropriate test equipment to confirm correct tripping at fault conditions.
Usage recommendations
Install and commission the Legrand 402075 in accordance with national wiring rules and manufacturer instructions. Regularly test the device (for example, monthly using the test button) and arrange periodic inspections by a qualified electrician to ensure continued protective performance.

## FAQ

### How much does the Legrand 402075 residual current circuit breaker 40A 4P cost, and is it available for purchase?

The price is 41.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 71 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 14.07.2026 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: Cash payment, 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/3929932/66632932_large.webp