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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.
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Read more...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.
Read more...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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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.
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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.
