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
3 weeks ago
5SY4203-6
Siemens 5SY4203-6 available at EU Automation. Get in touch today for a quick price.
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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 5SY4203-6 is a high-quality miniature circuit breaker designed for reliable electrical protection in various applications. This 2-pole device operates with an AC voltage of up to 400V and features a tripping characteristic class B, making it suitable for a range of industrial and mechanical engineering environments. With a rated operational current of 3A at 35°C, it ensures efficient performance under different temperature conditions. The circuit breaker boasts a robust mechanical service life of up to 10,000 switching cycles, ensuring long-term durability. It is equipped with a quick assembly system for easy installation and can be mounted in any position. The Siemens 5SY4203-6 also offers touch protection and is halogen-free, making it a safe and environmentally friendly choice for your electrical systems.
| Specification | Description |
|---|---|
| Product Brand Name | SENTRON |
| Product Designation | Miniature Circuit Breaker |
| Number of Poles | 2 |
| Design of Pole | 2P |
| Tripping Characteristic Class | B |
| Mechanical Service Life | 10,000 switching cycles |
| Overvoltage Category | III |
| Degree of Pollution | 3 |
| Type of Voltage | AC |
| Insulation Voltage (Ui) | 440 V (single-phase and multi-phase operation) |
| Supply Voltage | 400 V AC |
| Operating Voltage (DC) | Maximum 72 V |
| Protection Class | IP20 with connected conductors |
| Switching Capacity Current | 15 kA (DC, IEC 60947-2), 10 kA (EN 60898), 35 kA (IEC 60947-2) |
| Energy Limitation Class | 3 |
| Power Loss | 1.7 W per pole in hot operating state at rated current |
| Operational Current | 3 A at 35 °C, 2.88 A at 40 °C, 2.82 A at 45 °C, 2.76 A at 50 °C, 2.69 A at 55 °C |
| Suitability for Operation | Mechanical engineering / industry |
| Touch Protection | Yes |
| Combined Terminal | Yes (top and bottom) |
| Properties for Main Switches | In accordance with EN 60204-1 |
| Halogen-Free | Yes |
| Sealable | Yes |
| Silicon-Free | Yes |
| Installable Supplementary Devices | Yes |
| Short Circuit Breaking Capacity | 5 kA (AC, UL 1077 and CSA C22.2 No.235) |
| Connectable Conductor Cross-Section | Solid: 0.75 mm² to 35 mm²; Stranded: 0.75 mm² to 35 mm²; Finely Stranded with Core End Processing: 0.75 mm² to 25 mm² |
| AWG Number | 18 to 4 |
| Tightening Torque | 22 to 31 lbf·in (2.5 to 3.5 N·m) |
| Position of Power Supply Cord | Any |
| Mechanical Design | Height: 90 mm, Width: 36 mm, Depth: 76 mm, Installation Depth: 70 mm, Number of Modular Width Units: 2 |
| Fastening Method | Quick assembly system |
| Mounting Position | Any |
| Net Weight | 324 g |
| Environmental Conditions | Max. 95% to 55°C, Max. 55% to 70°C, Max. 35% to 75°C |
| Vibration Resistance | ±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz (IEC 60068-2-6) |
| Ambient Temperature (Operation) | -40 °C to 70 °C |
| Ambient Temperature (Storage) | -40 °C to 75 °C |
The Siemens 5SY4203-6 is a robust and reliable miniature circuit breaker designed for use in mechanical engineering and industrial applications. With a 2-pole design and a tripping characteristic class B, it offers excellent protection and performance. The breaker is suitable for a wide range of environmental conditions and can be mounted in any position, making it versatile for various installation requirements. Its quick assembly system and compatibility with supplementary devices further enhance its adaptability in complex systems.
What is the primary function of this Siemens part?
The Siemens 5SY4203-6 is a miniature circuit breaker designed to protect electrical circuits from damage caused by overcurrent or short circuits.
What is the rated current for this circuit breaker?
The rated current for the Siemens 5SY4203-6 is 3 A at 35 °C.
What type of tripping characteristic does this circuit breaker have?
This circuit breaker has a tripping characteristic class B.
What is the maximum operating voltage for this circuit breaker?
The maximum operating voltage for the Siemens 5SY4203-6 is 400 V AC.
Can this circuit breaker be used in mechanical engineering applications?
Yes, the Siemens 5SY4203-6 is suitable for operation in mechanical engineering and industrial applications.
What is the degree of protection provided by this circuit breaker?
The Siemens 5SY4203-6 provides a protection class of IP20 when connected with conductors.
What is the mechanical service life of this circuit breaker?
The mechanical service life of the Siemens 5SY4203-6 is typically 10,000 switching cycles.
What are the environmental conditions for operating this circuit breaker?
The Siemens 5SY4203-6 can operate in ambient temperatures ranging from -40 °C to 70 °C.
What is the breaking capacity of this circuit breaker?
The breaking capacity of the Siemens 5SY4203-6 is 10 kA according to EN 60898.
Is this circuit breaker halogen-free?
Yes, the Siemens 5SY4203-6 is halogen-free.
- Protection of electrical circuits in industrial and commercial applications
- Ensuring safety in mechanical engineering environments
- Use in systems requiring a reliable miniature circuit breaker
- Suitable for installations with specific environmental conditions
- Ideal for applications needing a 2-pole, 3A circuit breaker with a B tripping characteristic
- Integration into systems with a need for high short-circuit breaking capacity
- Use in environments requiring halogen-free and silicon-free components
- Suitable for quick assembly systems in various mounting positions
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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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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