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Siemens 5SY4120-7

Name: 5SY4120-7
Brand: Siemens
SKU: 5SY4120-7
Price: 23.75 GBP
Availability: InStock

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£23.75 (ex. VAT)

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Image shown may not reflect the final product

Marvo Stock ID MV-1KM6

HS Code 85362010

SKU 5SY4120-7

Condition New unboxed

Warranty 12 months

Weight (kg) 1.00

Length (mm) 320.00

Width (mm) 250.00

Height (mm) 250.00

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More about this product

Specification & Description

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Commonly Asked Questions

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Customer Reviews

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Specification & Description

Specification	Description
Part Number	5SY4120-7
Alternative Part Number	5SY41207
Manufacturer	Siemens
Product Type	Miniature Circuit Breaker
Rated Voltage	400 V AC
Interrupt Rate	10 kA
Dimensions	89.8 x 17.6 x 76.4 mm
Number of Poles	1
Tripping Characteristic	Type C
Rated Current	20 A
Frequency	50/60 Hz
Protection Class	IP20 with connected conductors
Energy Limiting Class	3
Mechanical Life	Typically 10,000 cycles
Operating Temperature Range	-40 °C to +70 °C
Mounting Position	Any
Product Features	Halogen-free, sealable, silicon-free, touch protection, combined terminal top and bottom
Suitability	Mechanical engineering / industry
Environmental Conditions	Vibration resistance according to IEC 60068-2-6
Commodity Code	853620

The Siemens 5SY4120-7 is a robust miniature circuit breaker designed to provide overcurrent protection in a variety of applications. Engineered for reliability, this single-pole breaker is rated for 400 V AC with a tripping characteristic class of C, making it suitable for commercial and industrial installations. With a rated current of 20 A and a breaking capacity of 10 kA according to EN 60898, it ensures a high level of protection for electrical circuits against overload and short-circuit conditions.

This circuit breaker features a compact design, measuring 89.8 mm in height, 17.6 mm in width, and 76.4 mm in depth, which allows for efficient use of space within electrical distribution boards. The quick assembly system facilitates easy installation and maintenance, while the ability to connect a range of conductor cross-sections from 0.75 mm² to 35 mm² solid or stranded, and up to 25 mm² finely stranded with core end processing, offers versatility for different wiring requirements.

Constructed with safety in mind, the 5SY4120-7 is halogen-free and offers touch protection, ensuring additional safety during operation and handling. It also supports a wide range of ambient operating temperatures from -40 °C to 70 °C, making it resilient in varying environmental conditions. The product is also vibration resistant according to IEC 60068-2-6, which ensures continued performance and reliability even in environments subject to mechanical disturbances.

The Siemens 5SY4120-7 miniature circuit breaker is a dependable choice for those seeking a high-quality protective device that combines functionality with durability for their electrical protection needs.

Commonly Asked Questions

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 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 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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Learn more about Marvo

Our service to you

Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.

No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.

Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.

Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.

Frequently Asked Questions

What is the voltage rating for this miniature circuit breaker?

The miniature circuit breaker is rated for 400 V.

What is the interrupt rate of this circuit breaker?

The interrupt rate for this circuit breaker is 10 kA.

Can you provide the dimensions of this circuit breaker?

The dimensions of the circuit breaker are 89.8 x 17.6 x 76.4 mm.

Is this circuit breaker suitable for use as a main switch in accordance with EN 60204-1?

Yes, this circuit breaker has properties suitable for main switches in accordance with EN 60204-1.

What is the ambient operating temperature range for this circuit breaker?

The ambient operating temperature range for this circuit breaker is from -40 °C to 70 °C.

Is the circuit breaker halogen-free?

Yes, the circuit breaker is halogen-free.

What type of terminals does this circuit breaker have?

This circuit breaker features combined terminals at both the top and bottom.

What is the tightening torque specification for the screw-type terminals?

The tightening torque for the screw-type terminals is between 2.5 N·m and 3.5 N·m.

Can supplementary devices be installed on this circuit breaker?

Yes, supplementary devices can be installed on this circuit breaker.

What is the product's vibration resistance?

The product's vibration resistance is ±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz, according to IEC 60068-2-6.

Part conditions explained

We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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