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Marvo Part ID: MV-27WS

£86.09 (ex. VAT)


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Specification Description
Part Number 3RV2021-1HA10
Alternative Part Number 3RV20211HA10
Manufacturer Siemens
Type Circuit Breaker
Current Rating 8 A
Voltage Rating 690 V ac
Mounting Style DIN Rail Mount
Interrupting Rating 4 kA
Number of Poles 3 Poles
Commodity Code 853620
Country of Origin Not specified
Part Description This Siemens circuit breaker, part number 3RV2021-1HA10, is a robust and reliable component designed for industrial applications. It is rated for 8 A and 690 V ac, making it suitable for a wide range of electrical systems. The breaker is designed for DIN rail mounting, allowing for easy installation and maintenance. With a high interrupting rating of 4 kA and three poles, it provides excellent protection against overcurrent and short circuit conditions. Please note that the country of origin for this part is not specified.

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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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.


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3RV2021-1HA10 Product Description

The Siemens 3RV2021-1HA10 is a robust and reliable circuit breaker designed to ensure the safety and efficiency of your electrical systems. With a rated operating voltage of 690 V ac and a rated operating current of 8 A, this three-pole device is capable of handling demanding applications. It features a DIN Rail Mount design for easy installation and a short-circuit protection function to prevent electrical overloads. The device is also equipped with screw-type terminals for the main current circuit, ensuring secure and stable connections. With a mechanical service life of 100,000 switching cycles, this circuit breaker is built to last, providing you with long-term peace of mind. Its compact dimensions (97mm height, 45mm width, 96mm depth) make it a space-efficient choice for your electrical panel. Whether you're operating in industrial or commercial environments, the Siemens 3RV2021-1HA10 circuit breaker is a high-quality solution for your circuit protection needs.

Frequently Asked Questions

What is the main function of this circuit breaker?

The Siemens circuit breaker is designed to protect an electrical circuit from damage caused by an overload or a short circuit. It can interrupt the flow of current when a fault is detected.

What are the technical specifications of this circuit breaker?

This circuit breaker has a current rating of 8 A and a voltage rating of 690 V ac. It is designed for DIN Rail Mounting and has a breaking capacity of 4 kA. It is a 3-pole circuit breaker.

What is the mounting type of this circuit breaker?

This Siemens circuit breaker is designed for DIN Rail Mounting. This makes it easy to install in various types of electrical panels.

What is the breaking capacity of this circuit breaker?

The breaking capacity of this Siemens circuit breaker is 4 kA. This is the maximum current that the circuit breaker can interrupt without causing damage to itself.

How many poles does this circuit breaker have?

This Siemens circuit breaker is a 3-pole breaker. This means it can control three circuits simultaneously.

What is the current rating of this circuit breaker?

The current rating of this Siemens circuit breaker is 8 A. This is the maximum amount of current that the circuit breaker can handle without tripping.

What is the voltage rating of this circuit breaker?

The voltage rating of this Siemens circuit breaker is 690 V ac. This is the maximum voltage that the circuit breaker can handle.

Is this circuit breaker suitable for industrial applications?

Yes, this Siemens circuit breaker is suitable for a wide range of industrial applications. It is designed to provide reliable and efficient circuit protection in various types of industrial environments.