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
5SY4120-7
Siemens 5SY4120-7 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
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3. Your quote
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All orders are subject to product availability. See our T&Cs.
Ask our team
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 5SY4120-7 is a robust miniature circuit breaker designed to provide overcurrent protection in a variety of applications. Engineered for reliability, this single-pole breaker is rated for 400 V AC with a tripping characteristic class of C, making it suitable for commercial and industrial installations. With a rated current of 20 A and a breaking capacity of 10 kA according to EN 60898, it ensures a high level of protection for electrical circuits against overload and short-circuit conditions.
This circuit breaker features a compact design, measuring 89.8 mm in height, 17.6 mm in width, and 76.4 mm in depth, which allows for efficient use of space within electrical distribution boards. The quick assembly system facilitates easy installation and maintenance, while the ability to connect a range of conductor cross-sections from 0.75 mm² to 35 mm² solid or stranded, and up to 25 mm² finely stranded with core end processing, offers versatility for different wiring requirements.
Constructed with safety in mind, the 5SY4120-7 is halogen-free and offers touch protection, ensuring additional safety during operation and handling. It also supports a wide range of ambient operating temperatures from -40 °C to 70 °C, making it resilient in varying environmental conditions. The product is also vibration resistant according to IEC 60068-2-6, which ensures continued performance and reliability even in environments subject to mechanical disturbances.
The Siemens 5SY4120-7 miniature circuit breaker is a dependable choice for those seeking a high-quality protective device that combines functionality with durability for their electrical protection needs.
This circuit breaker features a compact design, measuring 89.8 mm in height, 17.6 mm in width, and 76.4 mm in depth, which allows for efficient use of space within electrical distribution boards. The quick assembly system facilitates easy installation and maintenance, while the ability to connect a range of conductor cross-sections from 0.75 mm² to 35 mm² solid or stranded, and up to 25 mm² finely stranded with core end processing, offers versatility for different wiring requirements.
Constructed with safety in mind, the 5SY4120-7 is halogen-free and offers touch protection, ensuring additional safety during operation and handling. It also supports a wide range of ambient operating temperatures from -40 °C to 70 °C, making it resilient in varying environmental conditions. The product is also vibration resistant according to IEC 60068-2-6, which ensures continued performance and reliability even in environments subject to mechanical disturbances.
The Siemens 5SY4120-7 miniature circuit breaker is a dependable choice for those seeking a high-quality protective device that combines functionality with durability for their electrical protection needs.
| Specification | Description |
|---|---|
| Part Number | 5SY4120-7 |
| Alternative Part Number | 5SY41207 |
| Manufacturer | Siemens |
| Product Type | Miniature Circuit Breaker |
| Rated Voltage | 400 V AC |
| Interrupt Rate | 10 kA |
| Dimensions | 89.8 x 17.6 x 76.4 mm |
| Number of Poles | 1 |
| Tripping Characteristic | Type C |
| Rated Current | 20 A |
| Frequency | 50/60 Hz |
| Protection Class | IP20 with connected conductors |
| Energy Limiting Class | 3 |
| Mechanical Life | Typically 10,000 cycles |
| Operating Temperature Range | -40 °C to +70 °C |
| Mounting Position | Any |
| Product Features | Halogen-free, sealable, silicon-free, touch protection, combined terminal top and bottom |
| Suitability | Mechanical engineering / industry |
| Environmental Conditions | Vibration resistance according to IEC 60068-2-6 |
| Commodity Code | 853620 |
What is the voltage rating for this miniature circuit breaker?
The miniature circuit breaker is rated for 400 V.
What is the interrupt rate of this circuit breaker?
The interrupt rate for this circuit breaker is 10 kA.
Can you provide the dimensions of this circuit breaker?
The dimensions of the circuit breaker are 89.8 x 17.6 x 76.4 mm.
Is this circuit breaker suitable for use as a main switch in accordance with EN 60204-1?
Yes, this circuit breaker has properties suitable for main switches in accordance with EN 60204-1.
What is the ambient operating temperature range for this circuit breaker?
The ambient operating temperature range for this circuit breaker is from -40 °C to 70 °C.
Is the circuit breaker halogen-free?
Yes, the circuit breaker is halogen-free.
What type of terminals does this circuit breaker have?
This circuit breaker features combined terminals at both the top and bottom.
What is the tightening torque specification for the screw-type terminals?
The tightening torque for the screw-type terminals is between 2.5 N·m and 3.5 N·m.
Can supplementary devices be installed on this circuit breaker?
Yes, supplementary devices can be installed on this circuit breaker.
What is the product's vibration resistance?
The product's vibration resistance is ±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz, according to IEC 60068-2-6.
- Protection of electrical circuits against overload and short-circuit in residential and commercial buildings
- Use in distribution boards for safeguarding lighting and power circuits
- Integration into control panels for industrial machinery and equipment
- Application in infrastructure projects, such as energy distribution in public and private utilities
- Installation in modular switchgear systems for circuit protection in data centres
- Utilisation in HVAC systems to protect against electrical faults
- Implementation in renewable energy systems, including solar panel arrays and wind turbines, for circuit safety
- Deployment in automation systems for safeguarding sensors and control units
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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