# Siemens 3RV2021-4NA10 Motor Circuit Breaker, 3-Pole, 23-28A, Size S0

**URL:** https://aio.lv/en/product--siemens-3rv20214na10--1839964
**Data updated:** 2026-05-18 02:51 (EEST)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 3RV20214NA10
**EAN:** 4011209716247
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 226.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 187.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rv20214na10--1839964

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Courier delivery to door | 17.07.2026 | 53.99 EUR |

## Summary description

The Siemens 3RV2021-4NA10 is a high-performance 3-pole motor circuit breaker designed for reliable protection of electrical motors. With a current setting range of 23-28A and S0 size, this device ensures efficient thermal and magnetic overload protection. It is an essential component for industrial automation and motor control applications, providing safe switching and disconnection in various electrical systems.

## Long description

The Siemens 3RV2021-4NA10 is a robust 3-pole motor circuit breaker engineered to provide dependable protection for electrical motors in demanding industrial environments. This device is specifically designed to handle current ranges between 23 and 28 amperes, ensuring that motors are shielded against thermal and magnetic overloads. Built in the compact S0 size, it integrates seamlessly into control cabinets and electrical panels, offering a reliable solution for motor control and circuit disconnection.
Advantages
This motor circuit breaker stands out due to its high-performance design that guarantees consistent operational safety. By combining thermal and magnetic release mechanisms, it effectively prevents damage from short circuits and overload conditions, thereby extending the lifespan of connected equipment. Its compact S0 form factor allows for space-efficient installation, while the durable construction ensures long-term reliability even under frequent switching operations. The device is built to meet rigorous industrial standards, providing peace of mind for complex automation systems.
Suitable for
Industrial motor control systems
Automation and manufacturing machinery
Electrical distribution panels
Heating, ventilation, and air conditioning systems
When it may not be suitable
This device is not intended for use in circuits exceeding its specified current range of 23-28A. It is also not suitable for applications requiring protection against ground faults unless used in conjunction with additional specialized equipment.
Key specifications
Number of poles: 3
Current setting range: 23-28A
Size: S0
Weight: 0.375 kg
Color: Multicolour
How to use
The 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 current setting dial must be adjusted to the specific nominal current of the motor being protected to ensure accurate thermal tripping. After installation, the device can be operated manually using the front-facing switch to turn the motor on or off or to reset the breaker after a trip event.
What to consider before purchase
Verify that the motor's nominal current falls within the 23-28A range.
Ensure the S0 size is compatible with your existing panel layout.
Confirm that the environmental conditions meet the manufacturer's installation requirements.
Usage recommendations
Regularly inspect the terminals for tightness and ensure the device is free from dust or debris. If the breaker trips, investigate the cause of the overload or short circuit before resetting the switch to prevent repeated damage.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.375 kg |

### Design

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

## FAQ

### How much does the Siemens 3RV2021-4NA10 Motor Circuit Breaker cost, and is it available for purchase?

The price is 226.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 3RV2021-4NA10 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

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