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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 5SY4302-7 |
| Alternative Part Number | 5SY43027 |
| Manufacturer | Siemens |
| Type | Miniature Circuit Breaker |
| Actuation | Toggle |
| Rated Voltage | 400 V ac |
| Breaking Capacity | 5 kA |
| Rated Current | 2 A |
| Connection Type | Screw |
| Mounting | DIN Rail Mount |
| Dimensions | 52.8 x 76 x 89.8 mm |
| Number of Poles | 3-pole |
| Tripping Characteristic | Type C |
| Installation Depth | 70 mm |
| Halogen-Free | Yes |
| Sealable | Yes |
| Silicon-Free | Yes |
| Supplementary Device Installable | Yes |
| Short-Circuit Current Breaking Capacity (Icn) | 5 kA (according to UL 1077 and CSA C22.2 No.235) |
| Connectable Conductor Cross-Section Solid/Stranded | 0.75 mm² - 35 mm² |
| Connectable Conductor Cross-Section Finely Stranded with Core End Processing | 0.75 mm² - 25 mm² |
| AWG Number as Coded Connectable Conductor Cross Section | 18 - 4 |
| Tightening Torque with Screw-Type Terminals | 2.5 N·m - 3.5 N·m |
| Position of Power Supply Cord | Any |
| Mechanical Design | Quick assembly system, any mounting position |
| Net Weight | 466 g |
| Environmental Conditions | Max. 95% humidity up to 55°C, max. 55% humidity up to 70°C, max. 35% humidity up to 75°C |
| Vibration Resistance | ±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz |
| Ambient Temperature during Operation | -40 °C - 70 °C |
| Ambient Temperature during Storage | -40 °C - 75 °C |
| Number of Test Cycles for Environmental Testing | 6 according to IEC 60068-2-30 |
| Compliance | IEC / EN 60898-1, IEC / EN 60947-2 / UL1077 |
The Siemens 5SY4302-7 miniature circuit breaker is a robust and reliable solution designed to protect electrical circuits from overloads and short circuits, ensuring operational safety and efficiency. This three-pole breaker is rated for 400 V ac with a 5 kA short-circuit current breaking capacity, making it suitable for a wide range of industrial applications. With a 2 A current rating and a C tripping characteristic, it provides precise protection for circuits with moderate inrush currents, such as those with small motors or resistive loads.
Crafted for convenience, the 5SY4302-7 features a toggle actuator for easy manual operation and a screw terminal connection for secure wiring. Its compact dimensions of 52.8 x 76 x 89.8 mm allow for efficient use of space on a DIN rail mounting system, which is a standard in control cabinet layouts. The quick assembly system further simplifies installation, making it a practical choice for both new designs and maintenance tasks.
Engineered to perform in diverse environments, this circuit breaker can operate within a temperature range of -40 °C to 70 °C, and its mechanical design is vibration resistant, ensuring consistent performance even in demanding conditions. The device is also halogen-free and silicon-free, which is an important consideration for industries where environmental safety and material compliance are critical.
The Siemens 5SY4302-7 is a testament to quality and reliability, providing effective circuit protection with the engineering excellence expected from a leading brand in electrical components.
Commonly Asked Questions
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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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Frequently Asked Questions
What type of device is this?
This is a miniature circuit breaker designed for protecting electrical circuits from overcurrents and short circuits.
What are the voltage and interrupting capacity specifications?
The circuit breaker operates at 400 V ac with a 5 kA short-circuit current breaking capacity.
Can you describe the mounting style of 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 current rating for this circuit breaker?
The current rating for this circuit breaker is 2 A.
What are the dimensions of this circuit breaker?
The dimensions are 52.8 mm in width, 76 mm in depth, and 89.8 mm in height.
What type of terminals does this circuit breaker have?
It is equipped with screw terminals for secure and reliable wire connections.
Is this circuit breaker suitable for use as a main switch?
Yes, it has properties suitable for use as a main switch in accordance with EN 60204-1.
What is the tripping characteristic of this circuit breaker?
This circuit breaker has a 'C' tripping characteristic, which means it is suitable for applications with a moderate inrush current.
What is the environmental operating temperature range for this circuit breaker?
The operating temperature range is from -40 °C to 70 °C, ensuring reliable performance in various environmental conditions.
Is the circuit breaker halogen-free?
Yes, it is halogen-free, making it a safer choice for environments where reducing toxic gas emissions is a concern.
Part conditions explained
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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.
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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.
