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Marvo Part ID: MV-27WQ

£80.17 (ex. VAT)


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Specification Description
Part Number 3RV2021-1DA10
Alternative Part Number 3RV20211DA10
Manufacturer Siemens
Type Circuit Breaker
Poles 3 Pole
Rated Current 3.2 A @ 400 V ac/690 V ac
Breaking Capacity 100 kA
Trip Type Thermal-Magnetic
Dimensions 97 x 45 x 96 mm
Mounting Type Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Electrical Connection Screw-type terminals for main current circuit
Terminal Arrangement Top and bottom
Connectable Conductor Solid or stranded 2x (1 ... 2,5 mm²), 2x (2,5 ... 10 mm²); finely stranded with core end processing 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²
AWG Cable Compatibility 2x (16 ... 12), 2x (14 ... 8)
Tightening Torque 2 ... 2.5 N·m
Screwdriver Shaft Diameter 5 to 6 mm
Screwdriver Tip Size Pozidriv 2
Connection Screw Thread M4
Protection Class IP20 on the front according to IEC 60529
Touch Protection Finger-safe, for vertical contact from the front
Switching Status Indicator Handle
Commodity Code 85362010

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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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.


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3RV2021-1DA10 Product Description

The Siemens 3RV2021-1DA10 is a robust circuit breaker designed for motor protection, ensuring the safe and efficient operation of machinery in various industrial settings. This three-pole device is engineered to provide both overload and short-circuit protection, with a class 10 trip characteristic that responds quickly to system anomalies, safeguarding equipment from potential damage.

With an adjustable pick-up value current range of 2.2 to 3.2 A and a rated operating voltage of up to 690 V, this circuit breaker is versatile and suitable for a wide range of applications. Its compact dimensions, 97 mm in height, 45 mm in width, and 96 mm in depth, make it an ideal choice for space-constrained environments.

The 3RV2021-1DA10 features a screw connection for secure and reliable installation and is designed for mounting on a 35 mm standard mounting rail according to DIN EN 60715, allowing for flexible installation orientations. The device's mechanical and electrical endurance ensures a long service life, with typical switching cycles rated at 100,000 operations.

This circuit breaker is also equipped with phase disturbance recognition, adding an extra layer of protection for three-phase systems. The front of the device is rated at IP20, providing a degree of protection against solid objects and ensuring a finger-safe design to prevent electrical shock.

The Siemens 3RV2021-1DA10 circuit breaker is a dependable solution for motor protection, offering precise and reliable performance in industrial applications where motor safety and continuity of operation are paramount.

Frequently Asked Questions

What type of circuit breaker is this?

This is a thermal-magnetic circuit breaker designed for protecting electrical circuits from damage caused by overloads or short circuits.

Can this circuit breaker be used in hazardous locations?

Yes, the circuit breaker is suitable for use in hazardous locations and comes with the necessary approvals for such environments.

What is the current rating of this circuit breaker?

The circuit breaker has an adjustable pick-up value current of the current-dependent overload release ranging from 2.2 to 3.2 A.

What are the dimensions of the circuit breaker?

The dimensions of the circuit breaker are 97 mm in height, 45 mm in width, and 96 mm in depth.

What is the operating voltage range for this circuit breaker?

The operating voltage range for this circuit breaker is up to 690 V AC.

How many poles does this circuit breaker have?

This circuit breaker has 3 poles for the main current circuit.

What is the mechanical service life of this circuit breaker?

The mechanical service life of the main contacts is typically 100,000 switching cycles.

Is this circuit breaker finger-safe?

Yes, it is designed to be finger-safe to protect against electrical shock.

What is the temperature range for operating this circuit breaker?

The circuit breaker can operate within an ambient temperature range of -20 to +60 °C.

Can this circuit breaker be mounted on a DIN rail?

Yes, it can be mounted by screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 60715.