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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 5SY7306-7 |
| Alternative Part Number | 5SY73067 |
| Manufacturer | Siemens |
| Type of Mounting | Quick assembly system |
| Type of Voltage | AC/DC |
| Height | 90 mm |
| Width | 54 mm |
| Depth | 76 mm |
| Mounting Position | Any |
| Mounting Depth | 70 mm |
| Current (AC Rated Value) | 6 A |
| Tripping Characteristic Class | C |
| Supply Voltage (AC Rated Value) | 400 V |
| Switching Capacity Current | IEC 60947-2 rated value: 40 kA, EN 60898 rated value: 15 kA, DC IEC 60947-2 rated value: 15 kA |
| Breaking Capacity Short-Circuit Current (Icn) | 15 kA (DC EN 60898-2) |
| Protection Class IP | IP20, with connected conductors |
| Energy Limiting Class | 3 |
| Ambient Temperature | -25 … +55 °C (operating), -40 … +75 °C (storage) |
| Number of Poles | 3 |
| Mechanical Operating Cycles | Typical 20,000 |
| Overvoltage Category | III |
| Degree of Pollution | 3 |
| Insulation Voltage | 440 V (with multi-phase operation at AC) |
| Connectable Conductor Cross-Section | Solid: 0.75 … 35 mm², Stranded: 0.75 … 35 mm², Finely Stranded with Wire End Processing: 0.75 … 25 mm² |
| Tightening Torque | 2.5 … 3 N·m (with screw-type terminals) |
| Product Features | Halogen-free, Sealable, Silicon-free |
| Suitability for Operation | Mechanical engineering / industry |
The Siemens 5SY7306-7 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of applications. Engineered for performance, this 3-pole breaker features a C tripping characteristic, ensuring a quick response to short-circuit conditions and overloads, safeguarding equipment and preventing electrical hazards.
With a rated current of 6A and a supply voltage rating of 400V for AC systems, the 5SY7306-7 is capable of handling a switching capacity current of up to 40kA according to IEC 60947-2 standards, and 15kA in DC applications as per the same standard. This high breaking capacity makes it suitable for industrial and commercial settings where reliable circuit protection is paramount.
The device's compact design, with a width of only 54mm and a depth of 76mm, allows for efficient use of space inside electrical enclosures. The quick assembly system facilitates easy installation, while the ability to mount in any position offers flexibility in system design.
Constructed with safety in mind, the 5SY7306-7 is equipped with touch protection and is both halogen-free and silicon-free, contributing to a safer working environment. It also features a mechanical service life of typically 10,000 switching cycles, ensuring longevity and reducing maintenance needs.
This miniature circuit breaker is a testament to Siemens' commitment to quality, offering a combination of protection, durability, and ease of use that makes it a valuable component in electrical protection systems.
Commonly Asked Questions
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Frequently Asked Questions
What type of miniature circuit breaker is this?
This is a 3-pole miniature circuit breaker with a C tripping characteristic, designed for a 400 V supply voltage and a 6 A operating current.
Can this circuit breaker be used in industrial applications?
Yes, the miniature circuit breaker is suitable for operation in mechanical engineering and industrial environments.
What is the breaking capacity of this circuit breaker?
The breaking capacity of the circuit breaker is rated at 15 kA according to IEC 60947-2 and EN 60898 standards.
Is the circuit breaker halogen-free?
Yes, the circuit breaker is halogen-free, making it suitable for use in environments where reducing the risk of corrosive or toxic gas emission is important.
What is the mechanical service life of the circuit breaker?
The mechanical service life of the circuit breaker is typically 10,000 switching cycles.
What are the dimensions of the circuit breaker?
The circuit breaker has a height of 90 mm, a width of 54 mm, and a depth of 76 mm, with a mounting depth of 70 mm.
Can the circuit breaker be used with a DC supply voltage?
Yes, the circuit breaker can be used with a DC supply voltage, with a maximum rated operating voltage of 72 V.
What is the ambient temperature range for the operation of this circuit breaker?
The ambient temperature range for operation is from -25°C to +55°C, and for storage, it is from -40°C to +75°C.
Is the circuit breaker touch-protected?
Yes, the circuit breaker features touch protection to enhance safety during operation.
What is the insulation voltage rating of the circuit breaker?
The insulation voltage rating with multi-phase operation at AC is 440 V.
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.
