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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 5SY4225-7 |
| Alternative Part Number | 5SY42257 |
| Manufacturer | Siemens |
| Type | Miniature circuit breaker |
| Voltage Type | AC/DC |
| Rated Voltage | 400 V AC |
| Rated Current | 25 A |
| Tripping Characteristic Class | C |
| Number of Poles | 2 |
| Switching Capacity | - IEC 60947-2: 20 kA (AC), 15 kA (DC) |
| - EN 60898: 10 kA (AC and DC) | |
| Breaking Capacity (Icn) | - EN 60898-2: 10 kA (DC) |
| Ambient Temperature Range | - Operation: -25°C to +55°C |
| - Storage: -40°C to +75°C | |
| Insulation Voltage | 440 V AC |
| Connectable Conductor Cross-Section (Solid) | 0.75 mm² to 35 mm² |
| Connectable Conductor Cross-Section (Stranded) | 0.75 mm² to 35 mm² |
| Connectable Conductor Cross-Section (Finely Stranded) | 0.75 mm² to 25 mm² with wire end processing |
| Tightening Torque | 2.5 N·m to 3 N·m |
| Mounting Type | Quick assembly system |
| Mounting Position | Any |
| Degree of Pollution | 3 |
| Mechanical Operating Cycles | Typically 20,000 |
| Overvoltage Category | III |
| Product Features | - Sealable |
| - Halogen-free | |
| - Silicon-free | |
| Approvals | General Product Approval, EMC Declaration of Conformity, Miscellaneous Certificates |
| Commodity Code | 853620 |
The Siemens 5SY4225-7 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of applications. Engineered for quick assembly, this two-pole circuit breaker is suitable for both AC and DC operations, with a rated voltage of 400V and a rated current of 25A. It features a C tripping characteristic, ensuring a precise response to overcurrent conditions, making it an ideal choice for industrial and commercial electrical systems.
With a compact width of 36mm and a depth of 76mm, the 5SY4225-7 is designed to save space in electrical enclosures, while its modular design allows for easy installation and maintenance. The breaker is capable of withstanding ambient temperatures ranging from -25°C to +55°C during operation, and -40°C to +75°C during storage, ensuring consistent performance in diverse environmental conditions.
The device boasts a high switching capacity current, with ratings of 20kA according to IEC 60947-2 for AC and 15kA for DC, as well as a 10kA breaking capacity short-circuit current according to EN 60898. This ensures reliable protection for electrical circuits against short-circuit conditions.
Additional features include touch-protection, a sealable design for security, and compliance with overvoltage class 3 and pollution degree 3 standards. The 5SY4225-7 also meets the requirements for main switches in accordance with EN 60204-1, highlighting its suitability for integration into machinery safety systems.
The circuit breaker's terminals are designed to accommodate a wide range of conductor sizes, from 0.75mm² up to 35mm² for solid and stranded wires, and up to 25mm² for finely stranded wires with wire end processing. This flexibility ensures compatibility with various wiring configurations, simplifying installation processes.
Overall, the Siemens 5SY4225-7 miniature circuit breaker is a dependable and efficient solution for safeguarding electrical circuits against overloads and short circuits, making it a valuable component in ensuring the safety and reliability of electrical installations.
Commonly Asked Questions
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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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