# Eti-Polam KZS-4M Residual Current Circuit Breaker with Overcurrent Protection 4P 25A B 0.03A Type AC

**URL:** https://aio.lv/en/product--eti-polam-002174006--12451490
**Data updated:** 2026-06-12 15:46 (EEST)
**Category:** Power Sockets
**Manufacturer:** Eti-Polam
**Manufacturer code:** 002174006
**EAN:** 3838895552031
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 94.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 78.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eti-polam-002174006--12451490

## 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 residual current circuit breaker with overcurrent protection (RCBO). Rated for 25A with a B-type tripping characteristic and 30mA sensitivity, this AC-type device provides comprehensive protection against short circuits, overloads, and earth leakage currents. Designed for reliable electrical safety 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 robust 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. By monitoring the electrical circuit continuously, it helps prevent equipment damage and enhances personal safety by disconnecting power in the event of a fault.
Advantages
This RCBO offers a space-saving design by combining two essential protective functions into one housing, which simplifies installation and reduces the amount of space required in electrical distribution boards. The B-type tripping characteristic ensures reliable performance for standard resistive and inductive loads, while the 30mA sensitivity is specifically calibrated to provide effective protection against indirect contact, significantly reducing the risk of electric shock. Its durable construction and high-quality components ensure long-term operational reliability and consistent performance under various load conditions.
Suitable for
Residential electrical distribution boards
Industrial power supply systems
Protection of lighting and heating circuits
General purpose electrical installations requiring earth leakage and overcurrent protection
This device is not suitable for DC-sensitive applications, as it is designed specifically for AC-type leakage currents. It should not be used in environments where high-frequency components or pulsating DC currents are present, as these may interfere with the tripping mechanism and lead to improper operation.
Key specifications
Number of poles: 4
Rated current: 25A
Tripping characteristic: B
Residual current sensitivity: 0.03A (30mA)
Device type: AC
The device should be installed by a qualified electrician in accordance with local electrical regulations. It is mounted onto a standard DIN rail within a distribution enclosure. Before installation, ensure that the power supply is disconnected and that the device ratings match the requirements of the circuit being protected. Once mounted, connect the supply and load conductors to the appropriate terminals, ensuring all connections are tightened to the specified torque to prevent overheating.
What to consider before purchase
Verify that the 25A rated current matches your circuit load requirements
Ensure the 4-pole configuration is compatible with your three-phase electrical system
Confirm that the AC type is appropriate for your specific application
Check the available space in your distribution board for a 4-module wide device
Regular testing of the device using the integrated test button is recommended at least every six months to ensure the mechanical tripping mechanism remains functional and provides ongoing protection.

## FAQ

### How much does the Eti-Polam KZS-4M RCBO 4P 25A B 0.03A Type AC cost, and is it available for purchase?

The price is 94.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 25A B 0.03A Type 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/12451490/68754172_large.webp