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
5SY7120-7
Siemens 5SY7120-7 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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We deliver worldwide
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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.
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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 5SY7120-7 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of applications. Engineered for quick assembly, this 1-pole circuit breaker features a C tripping characteristic, ensuring a precise response to overcurrent conditions, making it suitable for use in both commercial and industrial environments.
With a rated operational voltage of 230/400V and a rated current of 20A, the 5SY7120-7 is capable of handling a diverse range of electrical loads. Its impressive breaking capacity of 15kA according to IEC 60947-2 and EN 60898 standards, along with a 25kA breaking capacity as per IEC 60947-2, highlights its ability to safely interrupt fault currents and protect downstream equipment.
The compact design, with a width of only 18mm per pole, allows for efficient use of space within electrical distribution boards. The device's mechanical service life is rated at 20,000 cycles, indicating its durability and long-term reliability. Additionally, the circuit breaker is designed to be sealable, halogen-free, and silicon-free, which contributes to its overall safety and environmental friendliness.
The 5SY7120-7 also features a quick assembly system for ease of installation and can be mounted in any position, providing flexibility in various installation scenarios. Its ambient operating temperature range of -25°C to +55°C ensures consistent performance across a wide range of environmental conditions.
Overall, the Siemens 5SY7120-7 miniature circuit breaker is a high-quality protective device that offers a combination of performance, safety, and ease of use, making it an excellent choice for safeguarding electrical circuits in a multitude of settings.
With a rated operational voltage of 230/400V and a rated current of 20A, the 5SY7120-7 is capable of handling a diverse range of electrical loads. Its impressive breaking capacity of 15kA according to IEC 60947-2 and EN 60898 standards, along with a 25kA breaking capacity as per IEC 60947-2, highlights its ability to safely interrupt fault currents and protect downstream equipment.
The compact design, with a width of only 18mm per pole, allows for efficient use of space within electrical distribution boards. The device's mechanical service life is rated at 20,000 cycles, indicating its durability and long-term reliability. Additionally, the circuit breaker is designed to be sealable, halogen-free, and silicon-free, which contributes to its overall safety and environmental friendliness.
The 5SY7120-7 also features a quick assembly system for ease of installation and can be mounted in any position, providing flexibility in various installation scenarios. Its ambient operating temperature range of -25°C to +55°C ensures consistent performance across a wide range of environmental conditions.
Overall, the Siemens 5SY7120-7 miniature circuit breaker is a high-quality protective device that offers a combination of performance, safety, and ease of use, making it an excellent choice for safeguarding electrical circuits in a multitude of settings.
| Specification | Description |
|---|---|
| Part Number | 5SY7120-7 |
| Alternative Part Number | 5SY71207 |
| Manufacturer | Siemens |
| Type | Miniature circuit breaker |
| Number of Poles | 1 |
| Tripping Characteristic Class | C |
| Rated Current (AC) | 20 A |
| Rated Voltage (AC) | 230/400 V |
| Rated Voltage (DC) | Maximum 72 V |
| Rated Breaking Capacity (AC) | 15 kA according to EN 60898 / 25 kA according to IEC 60947-2 |
| Rated Breaking Capacity (DC) | 15 kA according to IEC 60947-2 |
| Energy Limiting Class | 3 |
| Mechanical Service Life | Typical 20,000 switching cycles |
| Overvoltage Category | III |
| Degree of Pollution | 3 |
| Insulation Voltage | 440 V with multi-phase operation (AC rated value) |
| Protection Class IP | IP20 with connected conductors |
| Ambient Temperature Range | -25 °C to +55 °C during operation, -40 °C to +75 °C during storage |
| Mounting Type | Quick assembly system |
| Mounting Position | Any |
| Width | 18 mm |
| Height | 90 mm |
| Depth | 76 mm |
| Installation Depth | 70 mm |
| Net Weight | 161 g |
| Product Features | Halogen-free, sealable, silicon-free, touch protection, properties for main switches in accordance with EN 60204-1 |
| Connectable Conductor Cross-Section | Solid: 0.75 mm² to 35 mm², Stranded: 0.75 mm² to 35 mm², Finely stranded with wire end processing: 0.75 mm² to 25 mm² |
| Tightening Torque | 2.5 N·m to 3 N·m (with screw-type terminals) |
What is the tripping characteristic class of this circuit breaker?
The tripping characteristic class of this miniature circuit breaker is Class C, which means it is designed to trip quickly to protect circuits from overloads and short circuits.
Can this circuit breaker be used in both AC and DC applications?
Yes, this miniature circuit breaker is suitable for both AC and DC applications, providing versatility in its use across different electrical systems.
What is the rated operational voltage for this device?
The rated operational voltage for this device is 230V for single-phase operation and 400V for multi-phase operation with AC current.
What is the rated switching capacity current for this circuit breaker?
The rated switching capacity current for this circuit breaker is 15kA according to IEC 60947-2 and EN 60898 standards.
What is the mechanical service life of this circuit breaker?
The mechanical service life of this circuit breaker is typically around 20,000 switching cycles, indicating its durability and reliability over time.
Is this circuit breaker halogen-free?
Yes, this circuit breaker is halogen-free, making it an environmentally friendly choice for electrical installations.
What is the energy limiting class of this circuit breaker?
The energy limiting class of this circuit breaker is Class 3, which refers to its ability to limit the let-through energy in the event of a fault.
Can supplementary devices be installed with this circuit breaker?
Yes, supplementary devices can be installed with this circuit breaker, allowing for additional functionality and customisation according to specific requirements.
What is the insulation voltage rating for this device?
The insulation voltage rating for this device is 440V for both single-phase and multi-phase operation at AC.
What are the environmental operating conditions for this circuit breaker?
This circuit breaker can operate in ambient temperatures ranging from -25°C to +55°C and can be stored in temperatures ranging from -40°C to +75°C.
- Protection of electrical circuits against overload and short-circuit in residential buildings
- Use in commercial infrastructure to safeguard lighting and power distribution systems
- Installation in control panels for industrial equipment to prevent electrical faults
- Integration into HVAC systems for circuit protection
- Utilised in data centres to protect against electrical surges in power supply networks
- Application in renewable energy systems, such as solar panel installations, for circuit safety
- Employed in manufacturing facilities to protect machinery and motors from electrical damage
- Implementation 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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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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