# Circuit breaker 3P ETI B-20A 10 kA — miniature thermal-magnetic three-pole protection

**URL:** https://aio.lv/en/product--eti-002125717--4910465
**Data updated:** 2026-04-27 22:26 (EEST)
**Category:** Power Sockets
**Manufacturer:** ETI
**Manufacturer code:** 002125717
**EAN:** 5904722921177
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eti-002125717--4910465

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

Three-pole ETI miniature circuit breaker B-20A with B characteristic curve and 10 kA breaking capacity. Provides overcurrent and short-circuit protection for three-phase electrical circuits in residential, commercial and light industrial installations. DIN-rail mountable, thermal-magnetic trip ensures selective protection and reliable disconnection of faulty circuits.

## Long description

Three-pole ETI miniature circuit breaker B-20A 10 kA is a compact DIN-rail mountable device designed to protect three-phase electrical circuits against overloads and short circuits. With a B characteristic curve and thermal-magnetic trip, it offers reliable, selective disconnection of faulty circuits in residential, commercial or light industrial installations while occupying minimal panel space.
Advantages
The ETI B-20A 10 kA circuit breaker combines thermal and magnetic protection in a single compact unit, ensuring both long-term overload protection and instantaneous disconnection in case of short circuits. Its B characteristic curve provides sensitivity to low-magnitude faults typical for resistive loads and general-purpose circuits. The device is DIN-rail mountable for straightforward installation, and its rated breaking capacity helps ensure safe interruption of fault currents up to 10 kA.
Suitable for
 Protection of three-phase branch circuits in homes and apartments
 Distribution boards in small commercial premises and offices
 Light industrial panels with predominantly resistive or mixed loads
 Circuits supplying lighting, socket outlets and small motors
When it may not be suitable
This breaker may not be appropriate for installations that require specific time-delayed characteristics, advanced selective coordination beyond its thermal-magnetic design, or extremely high short-circuit current interruption well above 10 kA. It is not a substitute for devices providing earth-fault/ground-fault protection where required by local regulations.
Key specifications
 Poles: 3 (three-pole)
 Rated current: 20 A
 Tripping characteristic: B curve (thermal-magnetic)
 Rated ultimate breaking capacity: 10 kA
 Mounting: DIN-rail
 Function: overcurrent and short-circuit protection for three-phase circuits
How to use
Install the breaker on a standard DIN-rail inside a suitable distribution enclosure, observing correct orientation and torque for terminal connections. Connect the three phase conductors to the line terminals and the outgoing load conductors to the load terminals, ensuring secure tightening and proper conductor preparation. After installation, switch the device on and verify correct operation by observing that the breaker remains closed under normal load and trips when a simulated overload or short-circuit test (performed according to safety procedures) is applied. Follow local electrical codes and isolate power before any wiring work.
What to consider before purchase
 Verify that 20 A rated current and B characteristic suit the circuit load profile
 Confirm the installation environment and DIN-rail type compatibility
 Ensure required short-circuit breaking capacity of 10 kA meets site fault level
 Check whether additional protective functions (RCD/RCBO) are required by regulation
Usage recommendations
For reliable operation, pair the breaker with properly sized conductors and coordinated upstream protection. Schedule periodic visual inspections and functional tests within the intervals recommended by local standards, and replace devices that show mechanical wear or frequent tripping after the underlying fault is addressed.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.341 kg |

## FAQ

### How much does the Circuit breaker 3P ETI B-20A 10 kA cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 32 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 Friday 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 ETI 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 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4910465/30586989_large.webp