# Siemens SIRIUS 3RT2028-1BB40 Power Contactor, 3-Pole, 38A, 24V DC Control Voltage, Size S0

**URL:** https://aio.lv/en/product--siemens-3rt2028-1bb40--1796136
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3RT2028-1BB40
**EAN:** 4011209833821
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 192.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 159.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rt2028-1bb40--1796136

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Siemens SIRIUS 3RT2028-1BB40 is a high-performance 3-pole power contactor designed for reliable switching of electrical loads. Featuring a 38A rated operational current and a 24V DC control voltage, this size S0 contactor is ideal for industrial automation and motor control applications. It ensures efficient operation and durability in demanding environments, providing a robust solution for complex electrical systems.

## Long description

The Siemens SIRIUS 3RT2028-1BB40 is a professional-grade 3-pole power contactor engineered for the precise switching of electrical loads in industrial environments. As part of the reliable SIRIUS series, this size S0 contactor is built to handle demanding operational requirements with a rated current of 38A and a 24V DC control voltage, ensuring consistent performance in complex automation and motor control setups.
Advantages
This power contactor offers exceptional durability and operational efficiency, making it a dependable component for heavy-duty electrical systems. Its compact size S0 design allows for space-saving installation within control cabinets without compromising on switching capacity. The unit is designed for high endurance, reducing the need for frequent maintenance and ensuring long-term reliability in various industrial applications.
Suitable for
Industrial motor control systems
Automation and control panels
Switching of resistive and inductive loads
Heating and lighting control circuits
When it may not be suitable
This contactor is not intended for applications requiring AC control voltages, as it is specifically designed for 24V DC operation. It may also be unsuitable for environments exceeding its specified thermal or electrical ratings, or for specialized hazardous locations that require explosion-proof equipment.
Key specifications
Number of poles: 3
Rated operational current: 38A
Control voltage: 24V DC
Size: S0
Auxiliary contacts: 1 NO + 1 NC
How to use
Installation should be performed by qualified personnel in accordance with local electrical regulations. The contactor is designed for mounting on standard DIN rails or via screw mounting within a control cabinet. Ensure that the control circuit is connected to the 24V DC terminals and that the main power lines are securely fastened to the load terminals. Verify that the voltage and current ratings match your system requirements before energizing the circuit.
What to consider before purchase
Verify that your control system provides a stable 24V DC supply.
Ensure the 38A current rating is sufficient for your specific motor or load.
Check available space in your control cabinet to accommodate size S0 dimensions.
Confirm compatibility with existing auxiliary contact requirements.
Usage recommendations
Regularly inspect the terminal connections for tightness and check for signs of wear or overheating during scheduled maintenance intervals to ensure optimal performance and safety.

## FAQ

### How much does the Siemens SIRIUS 3RT2028-1BB40 Power Contactor cost, and is it available for purchase?

The price is 192.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 09.07.2026 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 SIRIUS 3RT2028-1BB40 Power Contactor 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

https://aio.lv/img/cache/product/1796136/47503320_large.webp