# ABB S203-B25 Miniature Circuit Breaker, 3-Pole, 25A, B-Curve

**URL:** https://aio.lv/en/product--abb-s203-b25--1512073
**Data updated:** 2026-05-18 02:46 (EEST)
**Category:** Power Sockets
**Manufacturer:** ABB
**Manufacturer code:** S203-B25
**EAN:** 4016779469203
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 23.96 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--abb-s203-b25--1512073

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The ABB S203-B25 is a high-quality 3-pole miniature circuit breaker designed for reliable electrical circuit protection. It features a 25A rated current and operates at 440V with a 50/60 Hz frequency. This B-curve device is engineered for industrial and residential applications, providing effective overcurrent and short-circuit protection to ensure safety and system stability in electrical installations.

## Long description

The ABB S203-B25 is a professional-grade 3-pole miniature circuit breaker engineered to provide robust protection for electrical circuits. Designed as part of the System pro M compact S200 series, this device ensures high reliability in both residential and industrial electrical installations. It utilizes a dual-tripping mechanism, combining a thermal system for overload protection with an electromechanical system for rapid short-circuit response, ensuring comprehensive safety for your electrical infrastructure.
Advantages
This circuit breaker offers superior current-limiting capabilities, which significantly reduces the energy let-through during a fault, thereby protecting downstream components from damage. Its compact design allows for efficient use of space within distribution boards, and the ability to mount auxiliary contacts at the bottom further optimizes installation space by up to 50 percent. The device is built to meet rigorous international standards, ensuring consistent performance and long-term durability in demanding environments.
Suitable for
Residential electrical distribution boards
Commercial building power systems
Industrial machinery and control panels
Protection of lighting and heating circuits
When it may not be suitable
This device is specifically designed for applications requiring a B-curve tripping characteristic. It may not be suitable for circuits with high inrush currents, such as those powering large motors or transformers, where a C or D-curve breaker would be more appropriate to prevent nuisance tripping.
Key specifications
Number of poles: 3
Rated current: 25A
Tripping characteristic: B-curve
Rated voltage: 440V AC
Frequency: 50/60 Hz
Compliance: IEC/EN 60898-1, IEC/EN 60947-2, UL1077, CSA 22.2 No. 235
How to use
The ABB S203-B25 should be installed by a qualified electrician within a standard DIN-rail distribution enclosure. Ensure that the supply voltage and load requirements match the specifications of the device. The breaker is mounted by snapping it onto the DIN rail and connecting the input and output cables to the respective terminals, ensuring all connections are tightened to the manufacturer's specified torque to prevent overheating.
What to consider before purchase
Verify that the 25A rating is appropriate for your specific circuit load.
Confirm that the B-curve characteristic matches the requirements of your connected equipment.
Ensure the 3-pole configuration is compatible with your electrical system phase arrangement.
Check available space in your distribution board for installation.
Usage recommendations
Always ensure the power supply is disconnected before attempting any installation or maintenance work on the circuit breaker. Regularly inspect the device for signs of physical damage or overheating to maintain optimal safety standards.

## Specifications

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -40 - 70 |
| Power requirements | 50/60 Hz |

### Power

| Feature | Value |
|---|---|
| Input voltage | 440 |
| Rated current | 25 A |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 80 mm |
| Width | 52.5 mm |
| Depth | 69 mm |

### Features

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -25 - 55 |

## FAQ

### How much does the ABB S203-B25 3-Pole Circuit Breaker 25A cost, and is it available for purchase?

The price is 28.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 61 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 16.07.2026 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 ABB 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 ABB 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/1512073/57988309_large.webp