# KOOP Elektro FSS Residual Current Circuit Breaker 4P 40A 30mA Type A

**URL:** https://aio.lv/en/product--koop-elektro-fss-4p-40a-typ-a--12456112
**Data updated:** 2026-05-18 09:43 (EEST)
**Category:** Power Sockets
**Manufacturer:** KOOP Elektro
**Manufacturer code:** FSS 4P 40A TYP A
**EAN:** 4260704861710
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.49 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 21.89 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--koop-elektro-fss-4p-40a-typ-a--12456112

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

The KOOP Elektro FSS is a 4-pole residual current circuit breaker (RCCB) designed for electrical safety. It features a 40A rated current and a 30mA sensitivity threshold, classified as Type A for detecting AC and pulsating DC residual currents. This device provides essential protection against electric shock and leakage currents in residential and industrial electrical installations.

## Long description

The KOOP Elektro FSS 4P 40A 30mA Type A is a high-quality residual current circuit breaker (RCCB) engineered to enhance electrical safety in various environments. This 4-pole device is designed to monitor electrical circuits and automatically disconnect power when a leakage current is detected, thereby preventing potential electric shock hazards and protecting equipment from ground faults.
Advantages
This circuit breaker offers reliable protection by identifying both alternating current (AC) and pulsating direct current (DC) residual currents, which is a critical feature for modern electrical systems containing electronic components. Its robust construction ensures long-term durability and consistent performance in both residential and industrial settings. By maintaining a 30mA sensitivity threshold, it provides an optimal balance between safety and operational continuity, minimizing nuisance tripping while ensuring rapid response to dangerous leakage currents.
Suitable for
Residential electrical distribution boards
Industrial machinery and equipment protection
Commercial building electrical installations
Systems with electronic power supplies or frequency converters
This device may not be suitable for high-current industrial applications exceeding its 40A rated capacity. It is also not intended to provide protection against short-circuits or overloads, as it must be paired with a miniature circuit breaker (MCB) or fuse to ensure comprehensive electrical system protection.
Key specifications
Number of poles: 4
Rated current: 40A
Residual current sensitivity: 30mA
Type: A (AC and pulsating DC detection)
Installation should be performed by a qualified electrician in accordance with local electrical regulations. The device is typically mounted on a standard DIN rail within a distribution cabinet. Ensure that the supply voltage matches the device specifications and that all connections are tightened to the recommended torque to prevent overheating.
What to consider before purchase
Verify that the 40A rating is sufficient for your circuit load
Ensure the 30mA sensitivity meets your specific safety requirements
Confirm compatibility with your existing distribution board layout
Check if Type A protection is required for your specific electronic equipment
For optimal safety, test the residual current circuit breaker periodically using the integrated test button to ensure the mechanical tripping mechanism remains functional.

## FAQ

### How much does the KOOP Elektro FSS 4P 40A 30mA Type A RCCB cost, and is it available for purchase?

The price is 26.49 € (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 24.07.2026 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 KOOP Elektro 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 KOOP Elektro 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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