5SY6325-6

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The Siemens 5SY6325-6 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of applications. Engineered for performance, this 3-pole breaker operates at a voltage of 400V with a 6kA short circuit breaking capacity, ensuring a high level of safety and continuity in electrical circuits.

With a B tripping characteristic, the 5SY6325-6 is well-suited for protecting against both overload and short-circuit currents in residential, commercial, and industrial settings. Its quick assembly system facilitates easy installation, while the compact design, occupying a width of only three modular units, allows for efficient use of space inside distribution boards.

The device is crafted to be touch-proof, offering an additional layer of safety during operation and maintenance. It also boasts a wide range of operating temperatures, ensuring reliability in diverse environmental conditions. The circuit breaker's halogen-free construction and silicon-free features make it an environmentally conscious choice, aligning with modern sustainability standards.

The 5SY6325-6 is a testament to Siemens' commitment to quality, providing a dependable solution for circuit protection that meets the rigorous demands of mechanical engineering and industry applications.
Specification Description
Part Number 5SY6325-6
Alternative Part Number 5SY63256
Manufacturer Siemens
Product Type Miniature Circuit Breaker
Rated Voltage 400 V
Short-Circuit Current Rating 6 kA
Number of Poles 3
Tripping Characteristic Type B
Mechanical Life Typically 10,000 operating cycles
Overvoltage Category III
Insulation Voltage Rated at 440 V for both single-phase and multi-phase operation
Supply Voltage Type AC
Ambient Operating Temperature -25 °C to +55 °C
Storage Temperature -40 °C to +75 °C
Tightening Torque 2.5 N·m to 3.5 N·m
Connectable Conductor Cross-Section (Solid) 0.75 mm² to 35 mm²
Connectable Conductor Cross-Section (Stranded) 0.75 mm² to 35 mm²
Connectable Conductor Cross-Section (Finely Stranded) 0.75 mm² to 25 mm² with core end processing
AWG Number 18 to 4
Degree of Pollution 3
Halogen-Free Yes
Sealable Yes
Touch Protection Yes
Commodity Code 853620
Height 90 mm
Width 54 mm
Depth 76 mm
Installation Depth 70 mm
Number of Modular Width Units 3
Fastening Method Quick assembly system
Mounting Position Any
Net Weight 451 g
Vibration Resistance ±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz
Resistance to Shock 150m/s² at 11ms half-sine
Insulation Voltage (Multi-Phase Operation) Rated at 440 V
Mechanical Operating Cycles Typical 20,000
Overvoltage Class 3
Product Feature (Sealable) Yes
Product Feature (Halogen-Free) Yes
Product Feature (Touch-Protection) Yes
Number of Test Cycles (Environmental Testing) 6
Reference Code (DIN EN 61346-2) F
Reference Code (IEC 81346-2) F

What is the tripping characteristic of this circuit breaker?

The miniature circuit breaker has a B tripping characteristic, which means it is designed to trip at fault currents of 3 to 5 times its rated current. This makes it suitable for protection against overloads and short-circuits in residential and light commercial applications.

Can this circuit breaker be used in multi-phase systems?

Yes, the circuit breaker is suitable for multi-phase operation with an AC rated value of 400V, making it versatile for various electrical system configurations.

What is the rated short-circuit breaking capacity for this breaker?

The rated short-circuit breaking capacity, according to EN 60898, is 6kA, which indicates the maximum fault current the breaker can safely interrupt.

Is the circuit breaker halogen-free?

Yes, the circuit breaker is halogen-free, ensuring that it does not release toxic halogenated compounds in the event of a fire, contributing to a safer environment.

What are the dimensions of the circuit breaker?

The circuit breaker has a height of 90mm, a width of 54mm, and a depth of 76mm, with a mounting depth of 70mm. It occupies 3 modular width units on a DIN rail.

What is the environmental temperature range for the operation of this breaker?

The circuit breaker can operate within an ambient temperature range of -25 °C to 55 °C, ensuring reliable performance in a variety of environmental conditions.

Is the circuit breaker suitable for use as a main switch according to EN 60204-1?

Yes, it has properties suitable for main switches in accordance with EN 60204-1, making it appropriate for use as a disconnecting means in machinery control panels.

What type of terminal connections does the circuit breaker have?

The circuit breaker features combined terminal connections at both the top and bottom, allowing for flexible installation options and secure wire connections.

Can supplementary devices be installed with this circuit breaker?

Yes, the circuit breaker allows for the installation of supplementary devices, enhancing its functionality and adaptability to specific circuit protection requirements.

What is the significance of the vibration resistance specification?

The vibration resistance specification, according to IEC 60068-2-6, ensures that the circuit breaker can withstand mechanical vibrations without compromising its performance, making it suitable for use in environments with machinery or equipment that may cause vibrations.

  • 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 HVAC systems to protect motors and compressors
  • Implementation in renewable energy systems such as solar panel installations
  • Utilisation in infrastructure projects for circuit protection in traffic signalling and street lighting
  • Deployment in data centres to ensure uninterrupted power supply to critical IT equipment
  • Installation in manufacturing facilities to protect against electrical faults in assembly lines and automation systems

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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