# Eti-Polam KZS-4M Residual Current Circuit Breaker with Overcurrent Protection 4P 20A C 0.03A AC Type

**URL:** https://aio.lv/en/product--eti-polam-2174025--12445780
**Data updated:** 2026-05-18 02:55 (EEST)
**Category:** Power Sockets
**Manufacturer:** Eti-Polam
**Manufacturer code:** 2174025
**EAN:** 3838895552178
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 128.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 106.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eti-polam-2174025--12445780

## 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 Eti-Polam KZS-4M is a 4-pole combined residual current circuit breaker with overcurrent protection (RCBO). It features a 20A rated current, C-type tripping characteristic, and 0.03A sensitivity for AC type leakage currents. Designed for electrical safety, it provides protection against short circuits, overloads, and earth leakage faults in residential and industrial distribution systems.

## Long description

The Eti-Polam KZS-4M is a high-performance 4-pole residual current circuit breaker with overcurrent protection (RCBO), engineered to provide comprehensive electrical safety in both residential and industrial environments. This device integrates the functions of a miniature circuit breaker and a residual current device into a single compact unit, ensuring efficient protection against short circuits, overloads, and dangerous earth leakage currents.
Advantages
This RCBO offers a space-saving design by combining two essential safety functions into one housing, which simplifies installation and reduces the amount of space required in electrical distribution boards. Its robust construction ensures reliable operation under various load conditions, while the C-type tripping characteristic provides a balanced response to standard industrial and domestic equipment start-up currents. The device is specifically designed to detect AC type leakage currents, providing a critical layer of protection for personnel and equipment against electrical faults.
Suitable for
Residential electrical distribution boards
Industrial power supply systems
Protection of lighting and heating circuits
General purpose electrical installations
When it may not be suitable
This device is designed for AC type leakage current detection and may not be appropriate for circuits where DC components are present, such as those connected to certain types of frequency converters or advanced electronic power supplies. It is also not intended for use in environments exceeding its specified thermal or electrical ratings.
Key specifications
Number of poles: 4
Rated current: 20A
Tripping characteristic: C
Residual current sensitivity: 0.03A
Leakage current type: AC
How to use
The Eti-Polam KZS-4M should be installed by a qualified electrician in accordance with local electrical regulations. It is mounted onto a standard DIN rail within a distribution cabinet. Ensure that all supply and load conductors are securely fastened to the appropriate terminals, observing the correct torque settings. After installation, the device should be tested using the integrated test button to verify the mechanical operation of the tripping mechanism.
What to consider before purchase
Verify that the 20A rated current matches the requirements of your circuit load.
Ensure the 4-pole configuration is compatible with your three-phase electrical system.
Confirm that the AC type leakage protection meets the safety standards required for your specific appliances.
Usage recommendations
Regularly test the device using the test button at least every six months to ensure the internal mechanism remains functional and responsive to potential fault conditions.

## FAQ

### How much does the Eti-Polam KZS-4M RCBO 4P 20A C 0.03A AC cost, and is it available for purchase?

The price is 128.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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, Installment. All transactions are 100% secure and encrypted.

### Can Eti-Polam KZS-4M RCBO 4P 20A C 0.03A AC 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 Eti-Polam 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 Eti-Polam 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/12445780/68748987_large.webp