5SY4210-8

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The Siemens 5SY4210-8 miniature circuit breaker is a robust and reliable solution designed to protect electrical circuits from overloads and short circuits, ensuring operational safety and longevity of your electrical systems. This 2-pole circuit breaker is rated for 400 V ac, with a notable interrupting capacity of 10 kA, making it suitable for a wide range of industrial and commercial applications.

With a current rating of 10 A, it is equipped to handle moderate current loads while providing precise protection. The D-tripping characteristic of this breaker ensures that it trips in a defined time, depending on the multiple of the rated current, which is particularly useful for circuits with inductive loads.

The device features a screw terminal connection for secure and reliable wiring, and it is designed for quick and easy installation on a DIN rail, which is a standard mounting practice in equipment racks. The compact dimensions of 36 x 76 x 90 mm make it an efficient choice for space-constrained environments.

Engineered for durability, the Siemens 5SY4210-8 operates effectively within a wide temperature range and is capable of withstanding challenging environmental conditions. Its design includes touch-protection and the ability to be sealed, adding an extra layer of safety and security.

This circuit breaker is a testament to Siemens' commitment to quality, offering a combination of protection, performance, and reliability for your electrical circuitry needs.
Specification Description
Part Number 5SY4210-8
Alternative Part Number 5SY42108
Manufacturer Siemens
Type Miniature Circuit Breaker
Operation Mechanism Toggle
Number of Poles 2 Pole
Voltage Rating 400 V ac
Interrupting Capacity 10 kA
Current Rating 10 A
Terminal Type Screw Terminal
Mounting DIN Rail Mount
Dimensions 36 x 76 x 90 mm
Pollution Degree 3
Ambient Temperature Range -25°C to +55°C (operating), -40°C to +75°C (storage)
Insulation Voltage Rated at 440 V for multi-phase operation with AC
Conductor Cross-Section Solid: 0.75 mm² to 35 mm², Multistrand: 0.75 mm² to 35 mm², Finely stranded: 0.75 mm² to 25 mm²
Tightening Torque 2.5 N·m to 3 N·m
AWG Number 14 to 4
Mechanical Operating Cycles Typically 20,000
Overvoltage Category 3
Product Features Sealable, Halogen-free
Environmental Testing Cycles 6 cycles according to IEC 60068-2-30
Reference Code According to DIN EN 61346-2 F and IEC 81346-2 F

What type of circuit breaker is this?

This is a miniature circuit breaker designed for protecting electrical circuits from damage caused by overcurrent or short circuit.

Can this circuit breaker be used with both AC and DC voltages?

Yes, it is suitable for use with both AC and DC voltages, with a rated value for AC at 400 V.

What is the tripping characteristic of this circuit breaker?

The tripping characteristic class of this circuit breaker is D, which means it is designed to provide protection against high inrush currents typically found in inductive loads.

What is the rated short-circuit breaking capacity?

The rated short-circuit breaking capacity is 10 kA according to EN 60898.

What are the dimensions of this circuit breaker?

The dimensions are 36 mm in width, 76 mm in depth, and 90 mm in height.

Is this circuit breaker suitable for DIN rail mounting?

Yes, it is designed for DIN rail mounting, which allows for easy installation in electrical distribution panels.

What is the ambient temperature range for operating this circuit breaker?

The ambient temperature range for operating this circuit breaker is from -25°C to +55°C.

Is the circuit breaker halogen-free?

Yes, it is halogen-free, making it a safer choice in environments where avoiding halogenated compounds is important.

What is the tightening torque for the screw-type terminals?

The tightening torque for the screw-type terminals is between 2.5 N·m and 3 N·m.

How many poles does this circuit breaker have?

This circuit breaker has 2 poles.

  • 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 prevent electrical faults
  • Installation in modular enclosures for circuit protection in data centres
  • Utilisation in infrastructure projects, such as railway systems, for electrical safety
  • Implementation in renewable energy systems to protect against current surges
  • Deployment in automation systems for safeguarding sensitive electronic components

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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