# Siemens SIRIUS 3RW4026-1BB04 Soft Starter, 3-Phase, 25A, 11kW at 400V, 24V AC/DC Control Voltage

**URL:** https://aio.lv/en/product--siemens-3rw4026-1bb04--3271817
**Data updated:** 2026-05-22 07:19 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3RW4026-1BB04
**EAN:** 4011209691643
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 501.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 414.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rw4026-1bb04--3271817

## 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 Siemens SIRIUS 3RW4026-1BB04 is a compact 3-phase soft starter designed for smooth motor starting and stopping. It operates with a rated current of 25A and supports a power output of 11kW at 400V. Featuring a 24V AC/DC control voltage, this S0 size device is ideal for industrial applications requiring reduced mechanical stress and current peaks during motor operation.

## Long description

The Siemens SIRIUS 3RW4026-1BB04 is a high-performance 3-phase soft starter engineered to provide controlled acceleration and deceleration for induction motors. By managing the voltage supplied to the motor, this device effectively minimizes mechanical shock and electrical current spikes, thereby extending the service life of the entire drive system. Its compact S0 design ensures efficient space utilization within control cabinets, making it a reliable solution for demanding industrial environments.
Advantages
This soft starter offers significant benefits by reducing the mechanical stress on belts, gears, and couplings during the startup phase. It helps maintain stable power grid conditions by limiting inrush currents, which prevents voltage dips that could affect other sensitive equipment. The integrated electronic overload protection provides an additional layer of safety for the motor, while the 24V AC/DC control voltage ensures compatibility with standard industrial automation systems.
Suitable for
Conveyor belt systems
Pumps and hydraulic systems
Fans and ventilation units
Compressors
Small machine tools
When it may not be suitable
This device is not intended for applications requiring high-torque starting or frequent reversing operations. It is also not suitable for use in environments where the ambient temperature or vibration levels exceed the manufacturer's specified technical limits.
Key specifications
Rated operational current: 25A
Power rating: 11kW at 400V
Control voltage: 24V AC/DC
Phase count: 3-phase
Size: S0
Operational voltage range: 200-480V AC
How to use
Installation should be performed by qualified personnel in accordance with local electrical regulations. The unit is designed for DIN-rail or screw mounting within a protected enclosure. After mounting, connect the main power supply to the input terminals and the motor leads to the output terminals. The control circuit must be connected to the 24V AC/DC terminals. Once installed, configure the starting parameters such as ramp-up time and current limit using the integrated potentiometers to match the specific requirements of the connected motor.
What to consider before purchase
Verify that the motor power and current ratings match the soft starter specifications.
Ensure the control voltage of your PLC or control system matches the 24V AC/DC requirement.
Check the available space in your control panel for the S0 size footprint.
Confirm the environmental conditions meet the operating temperature requirements.
Usage recommendations: Regularly inspect the terminal connections for tightness and ensure that the ventilation paths around the device remain unobstructed to prevent overheating during operation.

## FAQ

### How much does the Siemens SIRIUS 3RW4026-1BB04 Soft Starter cost, and is it available for purchase?

The price is 501.49 € (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 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, Installment. All transactions are 100% secure and encrypted.

### Can Siemens SIRIUS 3RW4026-1BB04 Soft Starter 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/3271817/47508989_large.webp