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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 5SY4204-5 |
| Alternative Part Number | 5SY42045 |
| Manufacturer | Siemens |
| Type | Miniature circuit breaker |
| Voltage Rating | 400 V AC/DC |
| Tripping Characteristic Class | A |
| Number of Poles | 2 |
| Rated Current | 4 A |
| Breaking Capacity | 10 kA according to EN 60898; 35 kA according to IEC 60947-2; 15 kA with DC |
| Mounting Type | Quick assembly system |
| Mounting Position | Any |
| Dimensions (H x W x D) | 90 mm x 36 mm x 76 mm |
| Mounting Depth | 70 mm |
| Degree of Pollution | 3 |
| Ambient Temperature Range | -25 … +55 °C (operating), -40 … +75 °C (storage) |
| Insulation Voltage | 440 V AC (multi-phase operation) |
| Connectable Conductor Cross-section | Solid: 0.75 … 35 mm², Stranded: 0.75 … 35 mm², Finely stranded with wire end: 0.75 … 25 mm² |
| Tightening Torque | 2.5 … 3 N·m (screw-type terminals) |
| AWG Number | 14 … 4 |
| Product Features | Sealable, Halogen-free, Silicon-free |
| Environmental Testing | 6 test cycles according to IEC 60068-2-30 |
| Reference Code | According to DIN EN 61346-2 F and IEC 81346-2 F |
| Protection Class | IP20 with connected conductors |
| Mechanical Operating Cycles | Typical 20,000 |
| Overvoltage Class | 3 |
| Touch Protection | Yes |
| Resistance to Shock | 150m/s² at 11ms half-sine |
The Siemens 5SY4204-5 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of industrial and commercial applications. Engineered for quick assembly, this 2-pole circuit breaker is suitable for both AC and DC operations, with a rated voltage of 400V and a rated current of 4A. Its compact dimensions, with a width of 36mm and a mounting depth of 70mm, make it an ideal choice for space-constrained environments.
This circuit breaker features a tripping characteristic class A, ensuring precise protection for circuits that may experience sudden high peak currents. With a high breaking capacity of 10kA according to EN 60898 and a remarkable 35kA in accordance with IEC 60947-2, it is equipped to handle demanding short-circuit conditions, providing peace of mind for equipment and personnel safety.
The 5SY4204-5 is designed with user convenience in mind, offering features such as sealability for tamper-proof installations and touch protection for enhanced safety. It is also halogen-free and silicon-free, addressing environmental and health considerations. The device can be installed in any mounting position, and its terminals are designed for flexibility, accommodating a wide range of conductor cross-sections from 0.75 mm² to 35 mm² solid or stranded, and up to 25 mm² for finely stranded conductors with wire end processing.
With a mechanical operating life of 20,000 cycles, the Siemens 5SY4204-5 is built to last, ensuring long-term reliability and reduced maintenance needs. Its ambient operating temperature range of -25°C to +55°C, along with storage temperature capabilities from -40°C to +75°C, ensures consistent performance even in extreme conditions.
Overall, the Siemens 5SY4204-5 miniature circuit breaker is a high-quality protective device that combines performance, safety, and installation flexibility, making it a valuable addition to any electrical protection system.
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Frequently Asked Questions
What type of circuit breaker is this?
This is a miniature circuit breaker designed for protecting electrical circuits from overcurrents and short circuits.
Can this circuit breaker be used in both AC and DC applications?
Yes, it is suitable for both AC and DC applications, with a rated voltage of 400V for AC.
What is the tripping characteristic of this circuit breaker?
The tripping characteristic class of this circuit breaker is A, which is typically used for protecting general residential or light commercial circuits.
What is the rated current of this circuit breaker?
The rated current for this circuit breaker is 4A.
What is the breaking capacity of this circuit breaker?
The breaking capacity is 10kA according to EN 60898, which indicates the maximum short-circuit current the breaker can safely interrupt.
Is this circuit breaker suitable for use as a main switch in accordance with EN 60204-1?
Yes, it has properties suitable for main switches in accordance with EN 60204-1.
What are the dimensions of this circuit breaker?
The dimensions are 90mm in height, 36mm in width, and 76mm in depth, with a mounting depth of 70mm.
Is the circuit breaker halogen-free?
Yes, it is halogen-free, which means it does not release toxic halogens when exposed to high temperatures or flames.
Can this circuit breaker be installed with supplementary devices?
Yes, it is designed to allow the installation of supplementary devices.
What is the ambient operating temperature range for this circuit breaker?
The ambient operating temperature range is from -25°C to +55°C, ensuring reliable operation across a wide range of environmental conditions.
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.
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