# ABB S203-B16 Miniature Circuit Breaker, 3-Pole, 16A, 230/400V

**URL:** https://aio.lv/en/product--abb-s203-b16--1512064
**Data updated:** 2026-05-18 02:46 (EEST)
**Category:** Power Sockets
**Manufacturer:** ABB
**Manufacturer code:** S203-B16
**EAN:** 4016779469005
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 21.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--abb-s203-b16--1512064

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The ABB S203-B16 is a high-quality 3-pole miniature circuit breaker designed for reliable electrical circuit protection. It features a rated current of 16A and operates at a voltage of 230/400V with a frequency of 50/60 Hz. This device is engineered for industrial and residential electrical installations to prevent overcurrent and short-circuit damage, ensuring safety and operational stability in various power distribution systems.

## Long description

The ABB S203-B16 is a professional-grade 3-pole miniature circuit breaker engineered to provide robust protection for electrical circuits. Designed for both residential and industrial environments, this device effectively safeguards systems against overcurrent and short-circuit damage. It utilizes a dual-tripping mechanism, combining thermal protection for overloads and electromechanical protection for short circuits, ensuring consistent operational stability and safety in power distribution networks.
Advantages
This circuit breaker stands out for its high reliability and current-limiting capabilities, which help minimize the impact of electrical faults on downstream equipment. Its compact design allows for efficient use of space within distribution boards, and the ability to mount bottom-fitting auxiliary contacts further optimizes installation space by up to 50 percent. The device is built to meet rigorous international standards, ensuring long-term durability and performance in diverse electrical applications.
Suitable for
Residential electrical installations
Commercial power distribution systems
Industrial machinery and equipment protection
General electrical circuit safety management
When it may not be suitable
This device is not intended for use in DC circuits unless specifically rated for such applications, as it is designed for AC power distribution. It may also not be suitable for systems requiring higher breaking capacities than those specified for this model.
Key specifications
Number of poles: 3
Rated current: 16A
Rated voltage: 230/400V AC
Tripping characteristic: B
Frequency: 50/60 Hz
Weight: 0.375 kg
Compliance: IEC/EN 60898-1, IEC/EN 60947-2, UL1077, CSA 22.2 No. 235
How to use
The ABB S203-B16 should be installed by a qualified electrician into a standard DIN-rail distribution board. Ensure that the power supply is disconnected before beginning the installation. The device is snapped onto the rail, and the input and output cables are securely connected to the terminals. Once installed, the breaker can be switched on to energize the circuit. Regular visual inspections are recommended to ensure the terminals remain tight and the device is free from physical damage.
What to consider before purchase
Verify that the 16A rated current matches your circuit requirements.
Ensure the 3-pole configuration is appropriate for your specific electrical load.
Check that the available space in your distribution board accommodates the dimensions of the unit.
Confirm compatibility with existing DIN-rail mounting systems.
Usage recommendations
Always ensure that the total load on the circuit does not exceed the 16A rating to prevent nuisance tripping. If the breaker trips, investigate the cause of the overload or short circuit before resetting the switch.

## Specifications

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

### Power

| Feature | Value |
|---|---|
| Input voltage | 230/400 |
| Rated current | 16 A |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.375 kg |
| Height | 88 mm |
| Width | 52.5 mm |
| Depth | 69 mm |

### Features

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

## FAQ

### How much does the ABB S203-B16 Miniature Circuit Breaker cost, and is it available for purchase?

The price is 25.49 € (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 06.07.2026 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

### 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/1512064/57988306_large.webp