# Siemens 5ST2503 4-Pole Distribution Block 160A 690V

**URL:** https://aio.lv/en/product--siemens-5st2503--12447520
**Data updated:** 2026-05-18 02:43 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 5ST2503
**EAN:** 4001869318967
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 111.56 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5st2503--12447520

## 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 Siemens 5ST2503 is a professional 4-pole distribution block designed for efficient electrical power management. Rated for 160A and 690V, this modular component facilitates secure cable connections and reliable power distribution in industrial and commercial electrical panels. It ensures organized wiring and optimal conductivity for complex electrical systems.

## Long description

The Siemens 5ST2503 4-pole distribution block is a professional-grade electrical component engineered for efficient power management within industrial and commercial electrical panels. Designed to support complex electrical systems, this modular block provides a reliable solution for organizing wiring and ensuring optimal conductivity. It is specifically built to integrate seamlessly with residual current devices and miniature circuit breakers, offering a robust foundation for power distribution.
Advantages
This distribution block offers significant benefits for electrical installations by providing a centralized point for power distribution, which helps in maintaining an organized and safe panel environment. The modular design allows for flexible and universal mounting, making it highly adaptable to various system configurations. With integrated touch protection, the device enhances safety during both the installation process and routine maintenance. Its high-quality construction ensures consistent performance and reliable electrical connectivity, reducing the risk of connection failures in demanding environments.
Suitable for
Industrial electrical control panels
Commercial power distribution systems
Integration with residual current devices
Miniature circuit breaker assemblies
Organized cable management in electrical cabinets
When it may not be suitable
This distribution block is designed for specific electrical capacities and may not be suitable for high-voltage applications exceeding 690V. It is also not intended for use in environments where the required cable cross-sections fall outside the specified input and output ranges.
Key specifications
Number of poles: 4
Rated current: 160 A
Rated voltage: 690 V
Input terminals: 1x 10-50 mm²
Output terminals: 3x 10-35 mm² and 8x 2.5-16 mm²
Mounting type: DIN-rail
How to use
The Siemens 5ST2503 is designed for straightforward installation on a standard DIN-rail. Begin by ensuring the power supply is disconnected to maintain safety. Secure the block onto the rail within your distribution board. Connect the main power supply cable to the designated input terminal, ensuring the wire is stripped to the appropriate length. Connect the secondary distribution cables to the output terminals according to your circuit requirements. Verify that all connections are tightened to the manufacturer's recommended torque specifications before restoring power.
What to consider before purchase
Verify that the total current load of your system does not exceed 160A.
Ensure the cable sizes you are using match the input and output terminal capacities.
Confirm that your electrical panel has sufficient DIN-rail space for the block.
Check that the operating voltage of your system is within the 690V limit.
Usage recommendations
Always ensure that the installation is performed by a qualified electrician in accordance with local electrical codes and safety regulations. Regularly inspect the connections for any signs of thermal stress or loosening to maintain long-term operational reliability.

## FAQ

### How much does the Siemens 5ST2503 4-Pole Distribution Block 160A cost, and is it available for purchase?

The price is 134.99 € (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, Installment. All transactions are 100% secure and encrypted.

### Can Siemens 5ST2503 4-Pole Distribution Block 160A be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Siemens 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 Siemens 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

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