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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 5SY4202-8 |
| Alternative Part Number | 5SY42028 |
| Manufacturer | Siemens |
| Type | Miniature Circuit Breaker |
| Operation Mechanism | Toggle |
| Number of Poles | 2 Poles |
| Rated Voltage | 400 V ac |
| Breaking Capacity | 10 kA |
| Rated Current | 2 A |
| Dimensions | 36 x 76 x 90 mm |
| Mounting | Quick assembly system |
| Tripping Characteristic | Class D |
| Ambient Temperature Range | -25 … +55 °C (operating), -40 … +75 °C (storage) |
| Insulation Voltage | Rated at 440 V for multi-phase operation with AC |
| Conductor Cross-Section | Solid: 0.75 … 35 mm², Stranded: 0.75 … 35 mm², Finely stranded: 0.75 … 25 mm² |
| Tightening Torque | Screw-type terminals: 2.5 … 3 N·m, Screw connection: 22 … 26 lbf·in |
| Product Features | Sealable, Halogen-free |
| Pollution Degree | 3 |
| Mechanical Operating Cycles | Typically 20,000 |
| Overvoltage Category | 3 |
| Touch Protection | Yes |
| Resistance to Shock | 150m/s² at 11ms half-sine |
| Commodity Code | 853620 |
The Siemens 5SY4202-8 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 two-pole breaker is rated for 400 V ac and can handle a rated current of 2 A, making it suitable for a wide range of industrial and commercial applications.
Crafted with precision, the 5SY4202-8 features a quick assembly system for ease of installation and can be mounted in any position, providing flexibility in various setups. Its compact dimensions of 36 x 76 x 90 mm allow for efficient use of space inside electrical enclosures.
The breaker boasts a D tripping characteristic, providing protection particularly for circuits with high inrush currents, such as those found in motor and transformer circuits. With a switching capacity of 10 kA according to EN 60898, it can reliably interrupt fault currents, ensuring the safety of downstream equipment.
The device is designed to operate within a wide ambient temperature range, from -25°C to +55°C, making it suitable for challenging environmental conditions. It also has a mechanical life expectancy of 20,000 operating cycles, indicating its durability and long-term reliability.
For added safety, the 5SY4202-8 is equipped with touch protection and is sealable, preventing accidental or unauthorized adjustments. It is also halogen-free, reducing the risk of toxic gas emissions in the event of a fire.
The Siemens 5SY4202-8 miniature circuit breaker is a testament to Siemens' commitment to quality, safety, and reliability, making it an essential component for safeguarding electrical systems.
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Frequently Asked Questions
What type of device is this miniature circuit breaker suitable for?
The miniature circuit breaker is suitable for a variety of applications including residential, commercial, and industrial settings where protection against overcurrent and short-circuit is required.
Can this circuit breaker be used in multi-phase operations?
Yes, this circuit breaker is designed for multi-phase operations with an AC rated value of 400 V.
What is the breaking capacity of this circuit breaker?
The circuit breaker has a breaking capacity short-circuit current (Icn) of 10 kA according to EN 60898.
Is the miniature circuit breaker halogen-free?
Yes, the miniature circuit breaker is halogen-free, making it suitable for environments where avoidance of halogenated materials is preferred.
What are the dimensions of the circuit breaker?
The dimensions of the circuit breaker are 36 x 76 x 90 mm.
What is the tripping characteristic of this circuit breaker?
The circuit breaker has a D tripping characteristic, which is typically used to protect inductive loads that may create surge currents.
Is the circuit breaker sealable for tamper prevention?
Yes, the circuit breaker is designed with a sealable feature to prevent tampering.
What is the ambient temperature range for the operation of this circuit breaker?
The circuit breaker can operate within an ambient temperature range of -25°C to +55°C.
What conductor cross-section can be connected to this circuit breaker?
The circuit breaker can accommodate solid or stranded conductors with cross-sections ranging from 0.75 mm² to 35 mm², and finely stranded conductors with wire end processing from 0.75 mm² to 25 mm².
How many poles does this circuit breaker have?
This circuit breaker is a 2-pole device, suitable for protecting two phases simultaneously.
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.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
