# Mini circuit breaker electro base DS3-20A-B — 3‑phase, 20 A, B-curve

**URL:** https://aio.lv/en/product--electro-base-ds3-20a-b--7122912
**Data updated:** 2026-02-12 14:22 (EET)
**Category:** Power Sockets
**Manufacturer:** electro base
**Manufacturer code:** DS3-20A-B
**EAN:** 3100000043469
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.79 €
**Prices and availability valid until:** 2026-07-10 23:59
**Price without VAT (21%):** 13.05 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--electro-base-ds3-20a-b--7122912

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.06.2026 | free |
| Pickup points | 22.06.2026 | 1.99 EUR |
| Courier delivery to door | 22.06.2026 | 4.99 EUR |

## Summary description

Three‑pole mini circuit breaker electro base DS3-20A-B rated at 20 A with B tripping curve. Designed for protection of electrical installations against overloads and short circuits in three‑phase circuits. Compact DIN‑rail mounting, manual toggle for on/off switching, suitable for residential, commercial or light industrial distribution boards.

## Long description

Mini circuit breaker electro base DS3-20A-B is a three‑pole protective device rated at 20 A with a B tripping curve, intended for use in three‑phase electrical circuits. It provides overcurrent and short‑circuit protection in compact DIN‑rail distribution installations and includes a manual toggle for on/off switching. The breaker is designed for installation in residential, commercial and light industrial distribution boards where space efficiency and reliable protection are required.
Advantages
The DS3-20A-B offers precise thermal-magnetic tripping with a B curve suitable for circuits with predominantly resistive loads. Its three‑pole design ensures simultaneous disconnection of all phases, improving safety during faults. Compact dimensions and standard DIN‑rail mounting simplify integration into existing panels. The manual toggle gives straightforward operation for switching and testing, while robust construction supports continuous operation under normal load conditions.
Подходит для
Защита трёхфазных линий питания в жилых распределительных щитах
Коммерческие распределительные щиты с равномерной нагрузкой
Лёгкая промышленность и офисные электроустановки
Модернизация и расширение существующих распределительных панелей
Key specifications
Poles: 3 (three‑pole)
Rated current: 20 A
Tripping characteristic: B curve (thermal‑magnetic)
Function: overcurrent and short‑circuit protection
Mounting: standard DIN‑rail (35 mm)
Operation: manual toggle ON/OFF
Applicable system: three‑phase AC circuits
Typical ambient use: indoor distribution boards
How to use
Install the DS3-20A-B on a standard 35 mm DIN rail inside the distribution board in compliance with local electrical codes. Connect the incoming three‑phase supply to the breaker line terminals and the load to the corresponding load terminals, ensuring correct phase order and secure torque on terminal screws. Use the manual toggle to switch the circuit on after installation checks and to reset the breaker following a trip. Verify that protective coordination with upstream and downstream devices is correct and test the circuit under no‑load conditions before full commissioning.
Usage recommendations
Use this breaker in circuits with primarily resistive or light inductive loads where a B tripping curve is appropriate. Avoid application on heavy motor loads or highly inductive circuits without verifying inrush current levels and coordination with motor protection devices. Regularly inspect connections for tightness and signs of overheating, and ensure the breaker is used within its rated current and environmental limits.
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## FAQ

### How much does the electro base DS3-20A-B mini circuit breaker 3‑phase 20A cost, and is it available for purchase?

The price is 15.79 € (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 17.06.2026 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 electro base 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 electro base 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/7122912/52247218_large.webp