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Marvo Part ID: MV-27WR

£83.95 (ex. VAT)


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You can return your part(s) and request a full refund at any time. Refer to our returns policy for more information.

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Get your order by 25/06/2024

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Commonly Asked Questions

What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.


Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.


What countries can Marvo deliver to?

Marvo currently delivers to the United Kingdom (excluding Northern Ireland), the United States of America and Germany. If you cannot find your delivery address at checkout, this is most likely because Marvo does not currently deliver to this location. There are ongoing efforts to make Marvo accessible to a global market, keep your eyes peeled as our service expands to new locations. All orders are sold with a streamlined delivery process ensuring that you get your part, fast. Marvo is designed to offer you quick, easy and reliable access to critical components and uses well established global shipping services, including but not limited to DHL, UPS and FedEx.


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Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.


Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services.  Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.


Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.


Peace of mind with every purchase


Marvo Approved

A seal of quality that ensures each part is fully inspected, every time. Purchase with confidence thanks to Marvo Approved.


Full warranty

All parts are covered by a comprehensive warranty. If something goes wrong, I’ll put it right.


Priority delivery

Advanced tracking and a streamlined delivery process ensure that you get your part, fast.


Committed to you

Engineered to ensure that you always have a quick, easy and reliable place to source automation and control components.

3RV2021-1EA10 Product Description

The Siemens 3RV2021-1EA10 is a robust circuit breaker designed for motor protection, ensuring efficient operation and safety in a variety of industrial applications. This three-pole device is engineered to provide class 10 protection, with an adjustable current range of 2.8 to 4 A, making it versatile for different motor sizes. The circuit breaker is suitable for use in systems with operating voltages up to 690 V ac, and it boasts a high short-circuit switching capacity.

Crafted for DIN rail mounting, the 3RV2021-1EA10 features a compact design with dimensions of 45 x 97 x 97 mm, allowing for easy integration into electrical panels without occupying excessive space. The unit's screw connection terminals facilitate secure and reliable wiring, while its finger-safe construction enhances user safety during installation and maintenance.

This circuit breaker is equipped with phase disturbance recognition, adding an extra layer of protection against phase imbalances that could potentially harm connected equipment. Its mechanical service life is rated for a substantial number of switching cycles, indicating a long-lasting and durable performance.

The 3RV2021-1EA10 is a testament to Siemens' commitment to quality and reliability in circuit protection technology, offering a dependable solution for safeguarding motors in industrial settings.

Frequently Asked Questions

What type of device is this circuit breaker suitable for?

This Siemens circuit breaker is suitable for protecting electrical circuits against overload and short-circuit in industrial applications. It can be used with devices that require a rated operating voltage up to 690 V ac and an operating current of 4 A.

Can this circuit breaker be used in hazardous locations?

For use in hazardous locations, specific certifications are required. It is recommended to request the certificate of suitability relating to ATEX if the application requires it.

What are the mounting options for this circuit breaker?

The circuit breaker is designed for DIN Rail mounting, which allows for easy installation and removal within electrical enclosures.

What is the interrupting capacity of this circuit breaker?

The interrupting capacity of this circuit breaker is 100 kA, which indicates its ability to safely interrupt fault currents up to that level.

What are the dimensions of the circuit breaker?

The dimensions of the circuit breaker are 45 x 97 x 97 mm, making it compact and suitable for space-constrained applications.

Is there a temperature range for operating this circuit breaker?

Yes, the circuit breaker can operate within an ambient temperature range of -20 to +60°C, ensuring reliable performance in various environmental conditions.

What is the mechanical service life of the circuit breaker?

The mechanical service life of the circuit breaker is typically 100,000 switching cycles, indicating its durability and longevity.

How many poles does this circuit breaker have?

This circuit breaker has 3 poles, which means it can control and protect three-phase electrical circuits.

What type of terminal connections does the circuit breaker have?

The circuit breaker features screw-type terminals for secure and reliable connections to the main current circuit.

Is the circuit breaker finger-safe?

Yes, the circuit breaker is designed with protection against electrical shock and is finger-safe, providing increased safety during installation and maintenance.