# Residual-current circuit breaker 4P 40A 30mA Type AC Legrand P304 (MPN 411708)

**URL:** https://aio.lv/en/product--legrand-411708--12056390
**Data updated:** 2026-03-12 19:40 (EET)
**Category:** Power Sockets
**Manufacturer:** Legrand
**Manufacturer code:** 411708
**EAN:** 3414970353085
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 50.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 42.14 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--legrand-411708--12056390

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Legrand P304 residual-current circuit breaker (RCCB) 4-pole, rated current 40 A, residual operating current 30 mA, type AC. Designed to detect and disconnect AC leakage currents to protect people and prevent fire risks. Suitable for three-phase installations, distribution boards and industrial or commercial electrical panels requiring earth-fault protection.

## Long description

Legrand P304 residual-current circuit breaker 4P 40A 30mA Type AC is designed to detect alternating residual currents and cut off supply to reduce the risk of electric shock and fire. This four-pole RCCB is intended for three-phase installations and distribution boards where protection against earth leakage is required. The device combines a compact form factor with clear switching operation and is suitable for integration into industrial and commercial electrical panels.
Advantages
The RCCB provides reliable detection of AC-type leakage currents with a rated residual operating current of 30 mA and a rated current of 40 A, ensuring fast disconnection in fault conditions. Its four-pole design enables neutral and all three phases to be monitored and disconnected simultaneously. The switch mechanism is designed for visible on/off position and straightforward manual operation. The product is manufactured by a recognised electrical systems supplier, ensuring compatibility with standard mounting and wiring practices.
Suitable for
 Three-phase residential and commercial distribution boards
 Industrial electrical panels requiring earth-fault protection
 Protection of circuits feeding motors, lighting and general loads
 Applications where AC-only leakage detection is sufficient
Key specifications
 Poles: 4 (three phases plus neutral)
 Rated current: 40 A
 Residual operating current (sensitivity): 30 mA
 Type: AC (detects alternating leakage currents)
 Function: residual-current detection and manual switching/disconnection
 Mounting: standard DIN-rail compatible form factor for distribution boards
How to use
Install the RCCB in the distribution board following local electrical codes and safety practices. Connect the three phase conductors and neutral to the corresponding terminals, and ensure secure tightened connections. The device should be placed upstream of the circuits it protects so that leakage currents are detected and the supply is disconnected when a residual current exceeds 30 mA. After installation, test the device using appropriate testing procedures or a test button if available and verify correct operation before energising the downstream circuits.
Usage recommendations
Regularly verify functionality by performing periodic tests according to local regulations and maintenance schedules. Use the RCCB in systems where AC-type leakage detection meets protection requirements; for installations with DC components or high-frequency residuals, consider devices with appropriate sensitivity types. Ensure the breaker’s rated current matches the protected circuit and coordinate with upstream and downstream protective devices.

## FAQ

### How much does the Legrand P304 RCCB 4P 40A 30mA Type AC cost, and is it available for purchase?

The price is 50.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1080 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 07.07.2026 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

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