# ABB SZ203-B40 Miniature Circuit Breaker, 3-Pole, 40A, 6kA

**URL:** https://aio.lv/en/product--abb-2cds253025r0405--12451057
**Data updated:** 2026-05-18 02:54 (EEST)
**Category:** Power Sockets
**Manufacturer:** ABB
**Manufacturer code:** 2CDS253025R0405
**EAN:** 4016779996501
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 24.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--abb-2cds253025r0405--12451057

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The ABB SZ203-B40 is a high-quality 3-pole miniature circuit breaker designed for reliable electrical circuit protection. With a rated current of 40A and a breaking capacity of 6kA, this B-curve device is ideal for residential and commercial installations. It ensures safety by preventing overloads and short circuits, providing efficient power distribution and equipment protection in various electrical systems.

## Long description

The ABB SZ203-B40 is a professional-grade 3-pole miniature circuit breaker engineered to provide robust protection for electrical installations. Designed for reliability and safety, this device effectively monitors electrical circuits to prevent damage from overloads and short circuits. It is a critical component for maintaining stable power distribution in both residential and commercial environments, ensuring that connected equipment remains protected against electrical faults.
Advantages
This miniature circuit breaker stands out due to its high manufacturing standards and consistent performance under load. The B-curve tripping characteristic offers a balanced response to current surges, making it highly effective for general-purpose applications. Its compact 3-pole design allows for efficient space utilization within distribution boards, while the 6kA breaking capacity provides sufficient safety margins for standard electrical systems. The device is built for durability, ensuring long-term operational stability and minimal maintenance requirements.
Suitable for
Residential electrical distribution boards
Commercial building power systems
Protection of lighting circuits
General electrical installations requiring 40A capacity
When it may not be suitable
This circuit breaker is not intended for industrial applications requiring higher breaking capacities or specific tripping curves beyond the B-curve standard. It should not be used in environments where the rated current exceeds 40A or where specialized protection for high-inrush current equipment is required.
Key specifications
Number of poles: 3
Rated current: 40A
Breaking capacity: 6kA
Tripping characteristic: B-curve
How to use
The ABB SZ203-B40 must be installed by a qualified electrician in accordance with local electrical regulations. It is designed for mounting on a standard DIN rail within a distribution enclosure. Ensure that the supply cables are correctly sized for a 40A load and securely fastened to the terminals to prevent overheating. Once installed, the toggle switch allows for manual operation to disconnect or reconnect the circuit as needed.
What to consider before purchase
Verify that the 40A rating matches your circuit requirements
Ensure the 3-pole configuration is compatible with your electrical system
Check that the 6kA breaking capacity meets local safety standards for your installation site
Confirm available space on the DIN rail within your distribution board
Usage recommendations
Regularly inspect the circuit breaker for any signs of physical damage or discoloration. It is recommended to perform periodic testing of the switching mechanism to ensure it remains functional and responsive. Always disconnect the main power supply before performing any maintenance or inspection tasks on the distribution board.

## FAQ

### How much does the ABB SZ203-B40 3-Pole Circuit Breaker 40A 6kA cost, and is it available for purchase?

The price is 29.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 13.07.2026 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/12451057/68753783_large.webp