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Marvo Part ID: MV-28JZ

£35.32 (ex. VAT)


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Specification Description
Part Number 5SY6325-7
Alternative Part Number 5SY63257
Manufacturer Siemens
Type Miniature Circuit Breaker
Current Rating 25 A
Number of Poles 3 Pole
Interrupting Capacity 6 kA
Voltage Rating 400 V
Dimensions 76 x 54 x 90 mm
Commodity Code 853620

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.


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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.


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Committed to you

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5SY6325-7 Product Description

The Siemens 5SY6325-7 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of applications. Engineered for quick assembly, this three-pole breaker features a C tripping characteristic, ensuring it responds to both short-circuit and overload conditions with precision. With a rated current of 25 A and a supply voltage of 400 V AC, it is well-suited for industrial settings where consistent performance is key.

The breaker's compact dimensions, 76 x 54 x 90 mm, allow for efficient use of space within electrical enclosures, while the modular design facilitates easy installation and maintenance. The 5SY6325-7 is capable of withstanding demanding environmental conditions, operating effectively within a temperature range of -25 °C to +55 °C, and is also rated for storage in temperatures from -40 °C to +75 °C.

This circuit breaker is designed with safety in mind, featuring touch protection and the ability to be sealed to prevent unauthorised adjustments. It also boasts a mechanical service life of approximately 20,000 cycles, demonstrating its durability and longevity in challenging industrial environments. The 5SY6325-7 is a testament to Siemens' commitment to quality and reliability in circuit protection technology.

Frequently Asked Questions

What are the key features of this miniature circuit breaker?

This miniature circuit breaker is a 3-pole device with a 25 A current rating, designed for a supply voltage of 400 V AC/DC. It has a breaking capacity of 6 kA according to EN 60898 and a tripping characteristic class of C, suitable for quick assembly systems.

Can this circuit breaker be used in any mounting position?

Yes, the circuit breaker is designed to be mounted in any position, providing flexibility in installation.

What is the significance of the tripping characteristic class C?

The tripping characteristic class C indicates that the circuit breaker is suitable for commercial and industrial applications with moderate surge currents, such as fluorescent lighting or small motors.

What is the physical size of the circuit breaker?

The dimensions of the circuit breaker are 76 x 54 x 90 mm, with a mounting depth of 70 mm, making it compact and suitable for use in space-constrained environments.

Is this circuit breaker suitable for multi-phase operation?

Yes, it is designed for multi-phase operation with a rated supply voltage of 400 V AC.

What is the breaking capacity of this circuit breaker?

The circuit breaker has a rated breaking capacity of 6 kA according to EN 60898, which indicates its ability to interrupt a short-circuit current without damage.

How does the quick assembly system benefit installation?

The quick assembly system allows for faster and easier installation of the circuit breaker, reducing the time and effort required for setup.

Can this circuit breaker be used for both AC and DC applications?

Yes, it is rated for both AC and DC applications, providing versatility in its use across different electrical systems.

What certifications does this circuit breaker hold?

The circuit breaker complies with international standards, including IEC 60947-2 and EN 60898, ensuring its reliability and safety for use in various applications.

How can I find more detailed information about the circuit breaker?

For more detailed information, you can refer to the manufacturer's documentation and support resources, which provide comprehensive details on the product's specifications and usage.