steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
4 weeks ago
5SY4302-7
Siemens 5SY4302-7 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
All orders are subject to product availability. See our T&Cs.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
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.
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.
| 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 |
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.
- Protection of electrical circuits against overload and short-circuit in residential and commercial buildings
- Use in control panel assemblies for industrial machinery and equipment
- Integration into power distribution units for data centres and IT infrastructures
- Installation in lighting circuits to safeguard against electrical faults
- Application in HVAC systems to prevent electrical overcurrents
- Utilisation in renewable energy systems such as solar panel installations to protect against circuit damage
- Implementation in automation systems for safeguarding sensitive electronic components
- Deployment in manufacturing facilities to ensure uninterrupted power supply to critical production lines
- Use as main switches in accordance with EN 60204-1 for safety and operational reliability
- Installation in environments requiring halogen-free and silicon-free components
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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All parts new or reconditioned are covered by EU Automation 12 month warranty
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
2 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
2 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
2 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
3 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
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