# Siemens 3RV2021-4AA10 Motor Circuit Breaker, 3-Pole, 11-16A, 7.5kW, Size S0

**URL:** https://aio.lv/en/product--siemens-3rv20214aa10--1802940
**Data updated:** 2026-05-18 02:44 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 3RV20214AA10
**EAN:** 4011209712515
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 63.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 52.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rv20214aa10--1802940

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3RV2021-4AA10 is a high-performance 3-pole motor circuit breaker designed for reliable motor protection. Featuring a current range of 11-16A and a power rating of 7.5kW, this size S0 device is engineered for industrial applications to prevent overloads and short circuits. It ensures safe operation and efficient control of electrical motors in various automation systems.

## Long description

The Siemens 3RV2021-4AA10 is a robust 3-pole motor circuit breaker engineered to provide reliable protection for electrical motors in industrial environments. Designed for efficiency and safety, this size S0 device effectively manages current ranges between 11A and 16A, supporting motors with a power rating of up to 7.5kW. It serves as a critical component in automation systems, ensuring that motors are shielded from the damaging effects of overloads and short circuits during operation.
Advantages
This motor circuit breaker offers exceptional reliability and durability, making it a preferred choice for demanding industrial settings. Its compact size S0 design allows for space-saving installation within control cabinets without compromising performance. The device provides precise protection settings, which helps in preventing unnecessary downtime and extending the service life of connected motors. Furthermore, its robust construction ensures consistent operation even under challenging electrical conditions, contributing to the overall stability of the automation infrastructure.
Suitable for
Industrial motor control systems
Automation and manufacturing machinery
Protection of three-phase induction motors
Switchgear and control panel assemblies
When it may not be suitable
This device is specifically calibrated for motors within the 11-16A range and is not suitable for applications requiring different current ratings or for single-phase motor protection where specific requirements differ. It should not be used in environments that exceed its specified environmental protection ratings or in applications requiring specialized hazardous area certifications.
Key specifications
Number of poles: 3
Current range: 11-16A
Power rating: 7.5kW
Size: S0
Weight: 0.361 kg
How to use
The motor circuit breaker should be installed by a qualified professional within a suitable electrical enclosure. It is typically mounted on a standard DIN rail. Once mounted, the power supply cables and motor leads are connected to the designated terminals. The thermal release should be adjusted according to the specific nominal current of the motor being protected to ensure optimal performance. After installation, the device can be operated manually using the front-facing switch to start or stop the motor or to reset the breaker after a trip event.
What to consider before purchase
Verify that the motor's nominal current falls within the 11-16A range.
Ensure the 7.5kW power rating matches your motor specifications.
Check available space in your control cabinet for size S0 equipment.
Confirm compatibility with your existing three-phase power supply system.
Usage recommendations
Always ensure that the power supply is disconnected before performing any installation or maintenance work on the circuit breaker. Regularly inspect the terminals for tightness and check for any signs of thermal stress to maintain long-term operational safety.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.361 kg |

### Design

| Feature | Value |
|---|---|
| Product colour | Multicolour |

## FAQ

### How much does the Siemens 3RV2021-4AA10 Motor Circuit Breaker cost, and is it available for purchase?

The price is 63.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 39 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 09.07.2026 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. All transactions are 100% secure and encrypted.

### 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/1802940/47501897_large.webp