# Siemens 3RV2021-4CA10 Motor Circuit Breaker, 3-Pole, 17-22A, Size S0

**URL:** https://aio.lv/en/product--siemens-3rv20214ca10--1840547
**Data updated:** 2026-05-18 02:47 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 3RV20214CA10
**EAN:** 4011209712539
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 164.49 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 135.94 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rv20214ca10--1840547

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Courier delivery to door | 12.08.2026 | 53.99 EUR |

## Summary description

The Siemens 3RV2021-4CA10 is a high-performance 3-pole motor circuit breaker designed for reliable protection of electrical motors. Featuring a current setting range of 17-22A and compact S0 size, it provides efficient short-circuit and overload protection in industrial applications. This robust device ensures operational safety and system longevity, making it an essential component for motor control centers and automation systems.

## Long description

The Siemens 3RV2021-4CA10 is a professional-grade 3-pole motor circuit breaker engineered to provide dependable protection for electrical motors in demanding industrial environments. With a precise current setting range of 17-22A and a compact S0 frame size, this device is optimized for space-saving installation within control cabinets while maintaining high operational reliability. It effectively guards against short circuits and thermal overloads, ensuring the integrity of connected equipment and minimizing downtime in automated systems.
Advantages
This motor circuit breaker stands out due to its robust construction and high switching capacity, which contribute to the long-term stability of electrical installations. The S0 size allows for efficient integration into motor control centers, offering a balance between compact design and high performance. By providing accurate overload and short-circuit protection, it helps prevent damage to motors, thereby extending the service life of your machinery and enhancing overall system safety.
Suitable for
Industrial motor control centers
Automation and control systems
Protection of three-phase induction motors
Switchgear assemblies
When it may not be suitable
This device is specifically designed for motor protection within the 17-22A range and is not suitable for applications requiring different current ratings or for protecting non-motor loads that do not align with its specific thermal-magnetic trip characteristics. It should not be used in environments exceeding its specified environmental protection ratings.
Key specifications
Number of poles: 3
Current setting range: 17-22A
Frame size: S0
Weight: 0.362 kg
Color: Multicolour
How to use
Installation should be performed by qualified electrical personnel in accordance with local safety regulations. The device is typically mounted on a standard DIN rail within a control panel. Once mounted, connect the incoming power supply to the top terminals and the motor leads to the bottom terminals. Ensure that the current setting dial is adjusted to the rated current of the motor being protected. After installation, verify the connections and perform a test trip to ensure the mechanism is functioning correctly.
What to consider before purchase
Verify that the motor's rated current falls within the 17-22A range.
Ensure the S0 frame size fits your existing control panel layout.
Confirm compatibility with your specific three-phase power supply requirements.
Usage recommendations
Always ensure that the circuit breaker is properly sized for the specific motor application to prevent nuisance tripping or inadequate protection. Regularly inspect the device for signs of wear or thermal stress during routine maintenance cycles.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.362 kg |

### Design

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

## FAQ

### How much does the Siemens 3RV2021-4CA10 Motor Circuit Breaker cost, and is it available for purchase?

The price is 164.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 07.08.2026 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 3RV2021-4CA10 Motor 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

### 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/1840547/47539224_large.webp