# Siemens 3RV2021-4EA15 Motor Protection Circuit Breaker, 27-32A, 400A Short-Circuit Release

**URL:** https://aio.lv/en/product--siemens-3rv20214ea15--1803478
**Data updated:** 2026-05-18 02:44 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 3RV20214EA15
**EAN:** 4011209841321
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 108.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 89.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rv20214ea15--1803478

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3RV2021-4EA15 is a size S0 motor protection circuit breaker designed for reliable electrical motor control and protection. It features a thermal overload release range of 27-32A and a magnetic short-circuit release of 400A. This device ensures safe operation by protecting against overloads and short circuits in industrial applications. It is a robust solution for motor starters and power distribution systems.

## Long description

The Siemens 3RV2021-4EA15 is a high-performance size S0 motor protection circuit breaker engineered to provide reliable control and comprehensive protection for electrical motors. This device is specifically designed to safeguard industrial equipment by monitoring current flow and interrupting the circuit in the event of thermal overloads or electrical short circuits. Its robust construction ensures consistent performance in demanding environments, making it an essential component for motor starter assemblies and power distribution systems.
Advantages
This motor protection circuit breaker offers exceptional reliability through its precise thermal overload release mechanism, which is adjustable within the 27-32A range. The integrated magnetic short-circuit release, set at 400A, provides rapid response times to prevent damage during fault conditions. Its compact S0 size allows for efficient space utilization within control cabinets, while the high-quality engineering ensures a long service life and minimal maintenance requirements for industrial motor applications.
Suitable for
Industrial motor starter combinations
Power distribution systems
Protection of three-phase induction motors
Control panels requiring overload and short-circuit protection
This device may not be suitable for applications requiring current ratings outside the 27-32A thermal range or for environments where the short-circuit current exceeds the rated breaking capacity of the breaker. It is also not intended for use in residential household circuits or for non-motor load types that require different tripping characteristics.
Key specifications
Size: S0
Thermal overload release range: 27-32A
Magnetic short-circuit release: 400A
Trip class: Class 10
Application: Motor protection
Installation should be performed by qualified personnel in accordance with local electrical regulations. The circuit breaker is typically mounted on a standard DIN rail within a control cabinet. Ensure that the thermal release is set correctly according to the nominal current of the connected motor. After mounting, verify all terminal connections for tightness to prevent overheating during operation.
What to consider before purchase
Verify the nominal current of your motor falls within the 27-32A range
Ensure the short-circuit current of the installation does not exceed the device limits
Check available space in the control cabinet for S0 size components
Confirm compatibility with your existing motor starter configuration
Regularly inspect the device for signs of wear or thermal damage and perform periodic testing of the tripping mechanism to ensure continued operational safety.

## FAQ

### How much does the Siemens 3RV2021-4EA15 Motor Protection Circuit Breaker cost, and is it available for purchase?

The price is 108.49 € (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 14.07.2026 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 3RV2021-4EA15 Motor Protection Circuit Breaker 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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