# Siemens 3RW3038-1BB14 Soft Starter 3-Phase 200-480VAC 72A 37kW 110-230VAC/DC

**URL:** https://aio.lv/en/product--siemens-3rw30381bb14--1783022
**Data updated:** 2026-05-18 02:40 (EEST)
**Category:** Control Systems
**Manufacturer:** Siemens
**Manufacturer code:** 3RW30381BB14
**EAN:** 4011209719316
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 013.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 838.01 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rw30381bb14--1783022

## 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 3RW3038-1BB14 is a compact 3-phase soft starter designed for smooth motor starting and stopping. It operates with a rated voltage of 200-480VAC, a current of 72A, and a power rating of 37kW at 400V. Featuring a control voltage of 110-230VAC/DC, this device is ideal for reducing mechanical stress and current peaks in industrial motor applications, ensuring reliable performance and extended equipment lifespan.

## Long description

The Siemens 3RW3038-1BB14 is a high-performance 3-phase soft starter engineered to provide smooth acceleration and deceleration for industrial electric motors. By managing the voltage supplied to the motor during startup, this device effectively minimizes mechanical shock and reduces high inrush current peaks that can strain power grids and drive components. Its compact design and robust construction make it a reliable solution for enhancing the operational efficiency and longevity of motor-driven systems in various industrial environments.
Advantages
This soft starter offers significant benefits by protecting mechanical drive elements such as belts, gears, and couplings from the sudden torque spikes typically associated with direct-on-line starting. By ensuring a gradual increase in motor speed, it reduces the thermal stress on motor windings and minimizes voltage drops in the supply network. The device is designed for easy integration into existing control cabinets, providing a space-saving solution that maintains high performance standards while simplifying the maintenance of motor-driven machinery.
Suitable for
Conveyor belt systems
Pumps and hydraulic systems
Fans and ventilation units
Compressors
Centrifuges
This device may not be suitable for applications requiring high starting torque, as soft starters reduce voltage to limit current, which inherently lowers the torque available during the acceleration phase. It is also not intended for applications that require frequent reversing or high-duty cycle jogging, as the internal power semiconductors are designed for controlled starting rather than continuous speed regulation or rapid switching.
Key specifications
Rated operational voltage: 200-480VAC
Rated operational current: 72A
Power rating: 37kW at 400V
Control supply voltage: 110-230VAC/DC
Phase type: 3-phase
Installation should be performed by qualified personnel in accordance with local electrical regulations. The soft starter is mounted in a control cabinet and connected between the power supply and the motor. Ensure that the control voltage is correctly applied to the designated terminals to enable the soft start function. Once installed, the device operates automatically to ramp up the motor voltage, providing a controlled start-up sequence that protects the connected equipment.
What to consider before purchase
Verify that the motor power rating matches the 37kW capacity of the soft starter.
Ensure the supply voltage is within the 200-480VAC range.
Confirm that the control voltage source (110-230VAC/DC) is available in your control circuit.
Check the physical dimensions to ensure it fits within your existing electrical enclosure.
Usage recommendations: Always ensure proper ventilation within the control cabinet to prevent overheating of the soft starter during operation. Periodically inspect electrical connections to ensure they remain tight and free from oxidation to maintain optimal performance.

## FAQ

### How much does the Siemens 3RW3038-1BB14 Soft Starter cost, and is it available for purchase?

The price is 1,013.99 € (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 3RW3038-1BB14 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/1783022/47671586_large.webp