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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 5SY4208-8 |
| Alternative Part Number | 5SY42088 |
| Manufacturer | Siemens |
| Product Type | Miniature Circuit Breaker |
| Actuation Type | Toggle |
| Rated Voltage | 400 V ac |
| Rated Short-Circuit Capacity | 5 kA |
| Rated Current | 8 A |
| Connection Type | Screw |
| Mounting | DIN Rail Mount |
| Dimensions | 35.2 x 76 x 89.8 mm |
| Number of Poles | 2 |
| Tripping Characteristic | D |
| Frequency | Suitable for 50/60 Hz systems |
| Pollution Degree | 3 |
| Ambient Temperature Range | -25 … +55 °C (operational), -40 … +75 °C (storage) |
| Insulation Voltage | Rated at 440 V for multi-phase operation with AC |
| Conductor Cross-Section | Solid: 0.75 … 35 mm², Stranded: 0.75 … 35 mm², Finely Stranded: 0.75 … 25 mm² |
| Tightening Torque | 2.5 … 3 N·m (22 … 26 lbf·in) with screw-type terminals |
| Halogen-Free | Yes |
| Sealable | Yes |
| Mechanical Operating Cycles | Typically 20,000 |
| Overvoltage Category | 3 |
| Touch-Protection | Yes |
| Resistance to Shock | 150m/s² at 11ms half-sine |
| Commodity Code | 853620 |
The Siemens 5SY4208-8 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of applications. Engineered for quick assembly and easy installation on a DIN rail, this two-pole circuit breaker is suitable for both AC and DC operations. With a rated voltage of 400 V AC and a rated current of 8 A, it is equipped to handle a diverse range of electrical loads.
This circuit breaker features a D tripping characteristic, ensuring precise protection for circuits that may experience high inrush currents, making it ideal for industrial and mechanical engineering applications. The 5SY4208-8 boasts a substantial short-circuit breaking capacity of 10 kA according to EN 60898 and 5 kA in accordance with UL 1077 and CSA C22.2 No.235, providing reliable performance and peace of mind.
The unit's compact dimensions, 35.2 x 76 x 89.8 mm, allow for efficient use of space within electrical enclosures, while the screw-type terminals ensure secure and durable connections. The circuit breaker is also designed with safety in mind, featuring touch protection and the ability to be sealed to prevent unauthorized adjustments.
Constructed to withstand a wide range of environmental conditions, the Siemens 5SY4208-8 operates effectively within an ambient temperature range of -25°C to +55°C and can be stored in temperatures ranging from -40°C to +75°C. Its mechanical endurance is impressive, with a typical operating time of 20,000 cycles, and it is resistant to shocks and vibrations as per IEC standards.
The 5SY4208-8 is also environmentally conscious, being both halogen-free and silicon-free, aligning with modern sustainability standards. Its design and construction adhere to international standards, including IEC/EN 60898-1 and IEC/EN 60947-2, ensuring compatibility and reliability in a global market.
Overall, the Siemens 5SY4208-8 miniature circuit breaker is a high-quality protective device that offers a combination of performance, safety, and durability for a wide range of electrical applications.
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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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 type of device is this and what is its primary function?
This device is a miniature circuit breaker designed to protect electrical circuits from damage caused by overcurrent or short circuit. Its primary function is to interrupt current flow after a fault is detected.
Can this circuit breaker be used with both AC and DC voltage?
Yes, this miniature circuit breaker is suitable for both AC and DC voltage applications, with a rated value for AC at 400 V.
What are the mounting options for this circuit breaker?
The circuit breaker is designed for DIN rail mounting, which allows for easy installation and removal within electrical enclosures.
What is the tripping characteristic of this circuit breaker?
This circuit breaker has a D tripping characteristic, which means it is designed to handle high inrush currents typically associated with inductive loads.
What is the rated current of this circuit breaker?
The rated current of this circuit breaker is 8 A.
What is the short-circuit breaking capacity of this device?
The short-circuit breaking capacity of this device is 10 kA according to EN 60898.
Is this circuit breaker suitable for use as a main switch in accordance with EN 60204-1?
Yes, this circuit breaker has properties that make it suitable for use as a main switch in accordance with EN 60204-1.
What is the degree of pollution for this circuit breaker?
The degree of pollution for this circuit breaker is rated at 3, which indicates that it can handle a certain level of contamination without performance being affected.
What is the ambient temperature range for operating this circuit breaker?
The ambient temperature range for operating this circuit breaker is from -25°C to +55°C.
Does this circuit breaker have a touch protection feature?
Yes, this circuit breaker is designed with touch protection to ensure safety during handling and operation.
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.
