# Siemens 3RW3037-1BB14 Soft Starter, 3-Phase, 200-480V AC, 63A, 30kW at 400V, 110-230V AC/DC Control Supply

**URL:** https://aio.lv/en/product--siemens-3rw30371bb14--1783012
**Data updated:** 2026-05-18 02:40 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3RW30371BB14
**EAN:** 4011209719293
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 874.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 723.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rw30371bb14--1783012

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Courier delivery to door | 21.07.2026 | 53.99 EUR |

## Summary description

The Siemens 3RW3037-1BB14 is a compact 3-phase soft starter designed for smooth motor starting and stopping. It operates with a rated voltage of 200-480V AC and supports a power output of 30kW at 400V with a 63A current rating. Featuring a versatile control supply voltage of 110-230V AC/DC, this S2 size device is ideal for industrial applications requiring reduced mechanical stress and electrical surges during motor operation.

## Long description

The Siemens 3RW3037-1BB14 is a high-performance 3-phase soft starter engineered to provide smooth acceleration and deceleration for induction motors. By controlling the voltage supplied to the motor, this device effectively minimizes mechanical stress on drive components and reduces electrical current surges during startup. Its compact S2 design makes it a reliable solution for industrial environments where space efficiency and motor protection are critical for operational longevity.
Advantages
This soft starter offers significant benefits by extending the service life of mechanical transmission elements such as belts, gears, and couplings through controlled torque application. It helps maintain a stable power grid by preventing high inrush currents that can cause voltage dips. The unit is designed for easy integration into existing control panels, offering a versatile control supply voltage range that simplifies installation and reduces the need for multiple power supply configurations.
Suitable for
Conveyor belt systems
Pumps and hydraulic systems
Fans and ventilation units
Compressors
Small industrial machinery
When it may not be suitable
This device is not intended for applications requiring frequent starts and stops at high duty cycles, as it is designed for standard soft starting operations. It should not be used in environments where heavy-duty starting torque is required, such as in high-inertia loads that demand a full-voltage start or specialized frequency converter control.
Key specifications
Rated operational voltage: 200-480V AC
Rated power: 30kW at 400V
Rated operational current: 63A
Control supply voltage: 110-230V AC/DC
Size: S2
Phase: 3-phase
How to use
Installation should be performed by qualified personnel in accordance with local electrical regulations. The soft starter is mounted in a control cabinet, ensuring adequate ventilation to prevent overheating. Connect the main power supply to the input terminals and the motor leads to the output terminals. The control supply voltage must be connected to the designated terminals to enable the internal switching logic. Once wired, the device manages the motor ramp-up automatically based on the internal factory settings.
What to consider before purchase
Verify that the motor power rating matches the 30kW capacity at 400V.
Ensure the control supply voltage (110-230V AC/DC) is compatible with your existing control system.
Check that the ambient temperature and installation environment meet the manufacturer's requirements for S2 size devices.
Confirm that the application does not exceed the soft starter's rated current of 63A.
Usage recommendations
Regularly inspect the terminal connections for tightness and ensure that the ventilation paths around the soft starter remain clear of dust and debris to maintain optimal thermal performance.

## FAQ

### How much does the Siemens 3RW3037-1BB14 Soft Starter cost, and is it available for purchase?

The price is 874.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Siemens 3RW3037-1BB14 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/1783012/47612253_large.webp