# Siemens 3RW3028 Soft Starter, 38A, 18.5kW at 400V, 11kW at 230V

**URL:** https://aio.lv/en/product--siemens-3rw3028-1bb14--1778389
**Data updated:** 2026-05-18 02:52 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3RW3028-1BB14
**EAN:** 4011209719477
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 541.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 447.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rw3028-1bb14--1778389

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3RW3028 soft starter is designed for the smooth starting and stopping of three-phase asynchronous motors. It features a rated current of 38A and supports motor power outputs of 18.5kW at 400V and 11kW at 230V. This compact device reduces mechanical stress and current peaks during startup, extending the service life of industrial equipment and electrical components in various automation applications.

## Long description

The Siemens 3RW3028 soft starter is a high-performance solution engineered for the controlled starting and stopping of three-phase asynchronous motors. By managing the voltage supply during the startup phase, this device effectively minimizes mechanical stress on drive components and prevents high current peaks that can destabilize electrical networks. Its robust design ensures reliable operation in demanding industrial environments, contributing to the longevity of your machinery.
Advantages
This soft starter offers a significant reduction in mechanical wear on belts, gears, and couplings by providing a smooth acceleration profile. By limiting the inrush current, it helps to prevent voltage drops in the power supply system, which protects sensitive electronic equipment connected to the same grid. The compact S0 size allows for space-efficient installation within control cabinets, while the integrated control logic simplifies the integration into existing automation systems.
Suitable for
Conveyor belt systems
Pumps and ventilation fans
Compressors
Small industrial machinery
Centrifugal drives
This device is not suitable for applications requiring high starting torque or frequent switching cycles, as it is designed for standard soft-start requirements. It should not be used in environments where the ambient temperature exceeds the manufacturer's specified limits or where there is excessive vibration or moisture without appropriate protective housing.
Key specifications
Rated operational current: 38A
Motor power at 400V: 18.5kW
Motor power at 230V: 11kW
Control supply voltage: 110-230V AC/DC
Operating voltage range: 200-480V AC
Size: S0
Installation should be performed by qualified personnel in accordance with local electrical regulations. The device is mounted on a standard DIN rail or via screw mounting within an enclosure. Ensure that the control voltage matches the specifications and that the motor leads are correctly connected to the output terminals. Once powered, the soft starter automatically manages the ramp-up process based on the internal factory settings.
What to consider before purchase
Verify that the motor's full-load current does not exceed 38A.
Ensure the control voltage supply is compatible with the 110-230V AC/DC range.
Check available space in the control cabinet for the S0 frame size.
Confirm the application does not require heavy-duty starting characteristics.
For optimal performance and longevity, ensure adequate ventilation within the control cabinet to prevent overheating during operation. Regularly inspect terminal connections to maintain electrical integrity.

## FAQ

### How much does the Siemens 3RW3028 Soft Starter \| 38A \| 18.5kW cost, and is it available for purchase?

The price is 541.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 17.07.2026 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 3RW3028 Soft Starter \| 38A \| 18.5kW 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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