# Bemko Residual Current Circuit Breaker AC 2P 40A 300mA

**URL:** https://aio.lv/en/product--bemko-a05-n7-2-40-300--12459086
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Power Sockets
**Manufacturer:** BEMKO
**Manufacturer code:** A05-N7-2-40-300
**EAN:** 5908311361818
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bemko-a05-n7-2-40-300--12459086

## 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 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Bemko residual current circuit breaker (RCCB) is a 2-pole electrical safety device designed for AC circuits. It features a rated current of 40A and a sensitivity of 300mA. This device provides essential protection against leakage currents, ensuring safety in residential and commercial electrical installations by automatically disconnecting the circuit when a fault is detected.

## Long description

The Bemko Residual Current Circuit Breaker (RCCB) is a high-quality 2-pole electrical safety device engineered for AC circuits. With a rated current of 40A and a sensitivity threshold of 300mA, this device serves as a critical component in modern electrical distribution systems. It is designed to monitor the balance of current in a circuit and automatically disconnect the power supply if a leakage current is detected, thereby preventing potential electrical hazards and protecting connected equipment.
Advantages
This residual current circuit breaker offers reliable performance and robust construction, making it an essential addition to any electrical panel. By providing rapid response times during fault conditions, it significantly enhances the safety profile of residential and commercial installations. Its compact design allows for efficient use of space within distribution boards, while the high-quality materials ensure long-term durability and consistent operation under standard environmental conditions.
Suitable for
Residential electrical installations
Commercial building power distribution
Protection of electrical circuits against leakage currents
General electrical safety upgrades
This device is not suitable for DC circuits or applications requiring high-speed protection against direct contact, as the 300mA sensitivity is primarily intended for fire protection and equipment safety rather than human life protection against direct touch. It should not be used in environments where the leakage current threshold needs to be significantly lower, such as in bathrooms or areas with high moisture levels where 30mA devices are typically required.
Key specifications
Type: Residual Current Circuit Breaker (RCCB)
Poles: 2P
Rated current: 40A
Sensitivity: 300mA
Current type: AC
The device should be installed by a qualified electrician in accordance with local electrical regulations. It is typically mounted on a standard DIN rail within a distribution board. Once installed, it is recommended to test the device periodically using the integrated test button to ensure the internal mechanism remains functional and capable of tripping when a fault occurs.
What to consider before purchase
Ensure the rated current of 40A matches your circuit requirements
Verify that the 300mA sensitivity is appropriate for your specific fire protection or equipment safety needs
Confirm compatibility with your existing electrical distribution board and DIN rail system
Usage recommendations
Regularly press the test button on the device at least every six months to verify that the tripping mechanism is operating correctly and to maintain optimal safety levels in your electrical installation.

## FAQ

### How much does the Bemko Residual Current Circuit Breaker A05-N7-2-40-300 cost, and is it available for purchase?

The price is 29.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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: 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 BEMKO 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 BEMKO 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/12459086/68761177_large.webp