Siemens 5SY6202-8CC Motor Protection Circuit Breaker 2P 2A

The Siemens 5SY6202-8CC is a two-pole, 2-ampere motor protection circuit breaker engineered for robust and reliable electrical system safeguarding. This device offers superior thermal and magnetic trip protection, ensuring sensitive motor windings are shielded against overcurrents and short circuits. Its compact design and high breaking capacity make it an ideal choice for demanding industrial and commercial applications, providing a crucial layer of safety and operational continuity.

Siemens 5SY6202-8CC: Product Specifications

| Feature              | Specification             |

| :------------------- | :------------------------ |

| Product Type         | Motor Protection Circuit Breaker |

| Poles                | 2                         |

| Rated Current (In)   | 2 A                       |

| Trip Characteristic  | Curve 10 (IEC 60947-4-1)  |

| Rated Breaking Cap.  | 30 kA (IEC 60947-2)       |

| Voltage Rating (AC)  | 400 V                     |

| Mounting             | DIN Rail (35mm)           |

| Ambient Temp. Range  | -25 to +55 °C             |

| Protection Class     | IP20                      |

Core Features & Market Positioning

The Siemens 5SY6202-8CC distinguishes itself through its advanced trip unit, offering precise and adjustable thermal overload protection. This specificity allows for fine-tuning to protect various motor types from overheating, a common cause of premature failure in industrial settings. Its robust construction and adherence to stringent IEC standards (IEC 60947-4-1 and IEC 60947-2) underscore Siemens' commitment to quality and reliability, positioning it as a preferred component for engineers prioritizing long-term equipment health and operational efficiency. The high breaking capacity of 30 kA ensures it can safely interrupt fault currents, providing superior protection compared to standard miniature circuit breakers in motor circuit applications.

Key Application Scenarios

This motor protection circuit breaker is specifically designed for safeguarding individual electric motors in a wide array of industrial automation, machinery, and control panel applications. It is frequently deployed in pump systems, conveyor belts, fans, and small machine tools where precise motor protection is paramount. For panel builders, integrating the 5SY6202-8CC into custom control cabinets offers a reliable solution for compliance with safety regulations and ensuring the longevity of powered equipment. Its 2A rating makes it particularly suitable for smaller fractional horsepower motors or specific circuits requiring lower current protection.

Practical System Integration Guidance

Installing the Siemens 5SY6202-8CC is straightforward, utilizing a standard 35mm DIN rail mounting system common in industrial control panels. Ensure secure termination of conductors by using appropriate crimp connectors or ferrules, adhering to torque specifications as recommended in Siemens documentation. The breaker's two poles are wired in series with the motor's power supply. Proper upstream overcurrent protection, such as a fuse or main circuit breaker, should be installed to protect the 5SY6202-8CC itself from excessive fault currents beyond its breaking capacity.

Operation and Risk Mitigation

The Siemens 5SY6202-8CC operates by monitoring motor current for prolonged overloads (thermal trip) and instantaneous high currents (magnetic trip). When a trip condition is detected, the breaker automatically interrupts the circuit, preventing damage to the motor and associated wiring. To reset, the cause of the overload or short circuit must be identified and rectified. Regular visual inspection for any signs of wear or damage is recommended. Avoid attempting to reset the breaker without addressing the fault, as this can lead to equipment damage or safety hazards.

Scalability & Long-Term Value

While the 5SY6202-8CC is a dedicated component for a specific motor protection task, its value lies in its reliability and compatibility within broader Siemens industrial control ecosystems. It seamlessly integrates with other Siemens components, such as contactors and overload relays, within a unified control architecture. For systems requiring advanced monitoring or integration into Industrial IoT (IIoT) platforms, the 5SY6202-8CC can be part of a panel that includes digital communication modules or smart relays, indirectly contributing to overall system data acquisition and predictive maintenance strategies.

Frequently Asked Questions

What is the trip class of the Siemens 5SY6202-8CC?

The Siemens 5SY6202-8CC features a trip characteristic defined by Class 10 according to IEC 60947-4-1 standards. This means it will trip within a specific time frame when subjected to a certain multiple of its rated current.

This trip class is optimized for protecting standard industrial motors against thermal overload without nuisance tripping during normal startup inrush currents. Understanding this characteristic is vital for proper motor sizing and system design.

The Class 10 rating ensures a balance between rapid protection against severe overloads and tolerance for transient motor starting currents.

Can the Siemens 5SY6202-8CC be used for direct on-line starting of motors?

Yes, the Siemens 5SY6202-8CC is designed for direct on-line (DOL) motor starting applications. Its magnetic trip setting is typically adjustable or fixed at a higher level to accommodate starting currents.

The breaker's robust construction and high breaking capacity are sufficient to handle the short-duration, high-magnitude currents experienced during motor startup. Proper coordination with upstream protection is still essential for overall system safety.

When used in DOL applications, ensure the breaker's trip settings are appropriately configured to protect the motor effectively while allowing for safe start-up sequences.

What is the maximum voltage rating for the Siemens 5SY6202-8CC?

The Siemens 5SY6202-8CC has a rated operational voltage of 400 V AC. This is a standard voltage level for many industrial power distribution systems.

It is crucial to ensure that the supply voltage to the breaker does not exceed this 400 V AC rating to maintain its operational integrity and safety. Exceeding this voltage can lead to insulation breakdown and device failure.

Always verify the system voltage against the breaker's specifications before installation to guarantee proper and safe operation within its designed parameters.

How do I reset the Siemens 5SY6202-8CC after a trip?

To reset the Siemens 5SY6202-8CC after a trip, first identify and eliminate the cause of the overload or short circuit. Once the fault condition is resolved, you can manually reset the breaker by pushing the toggle switch back to the "ON" position.

Do not attempt to reset the breaker repeatedly if the fault condition persists, as this can further damage the motor or wiring and pose a safety risk. Always ensure the system is safe before attempting a reset.

If the breaker trips frequently, it indicates a persistent issue that requires professional diagnosis to prevent equipment damage and ensure system reliability.

What is the breaking capacity of the Siemens 5SY6202-8CC?

The Siemens 5SY6202-8CC boasts a rated breaking capacity of 30 kA according to IEC 60947-2 standards. This signifies its ability to safely interrupt fault currents up to 30,000 amperes under specified conditions.

This high breaking capacity is crucial for protecting electrical systems from severe short circuits, preventing arc flash hazards and damage to downstream equipment. It ensures the breaker can effectively contain and extinguish fault currents.

The 30 kA rating provides a significant safety margin for most industrial and commercial power distribution panels where short-circuit currents can be substantial.

Is the Siemens 5SY6202-8CC suitable for protecting single-phase motors?

While the Siemens 5SY6202-8CC is a two-pole breaker, it is primarily intended for protecting motors in three-phase systems or specific single-phase circuits requiring double-pole switching. Its design offers enhanced protection by interrupting both live conductors.

For standard single-phase motors that only require single-pole protection, a single-pole circuit breaker with appropriate thermal overload capabilities would typically be used. Consult motor specifications for exact protection requirements.

If a single-phase motor requires two-pole switching for safety or isolation purposes, this breaker can be a suitable option, provided its current and voltage ratings align with the motor's requirements.

What are the dimensions of the Siemens 5SY6202-8CC for panel layout?

The Siemens 5SY6202-8CC is designed for standard 35mm DIN rail mounting, ensuring easy integration into most industrial control panels. Its specific width typically occupies two standard modular units.

Detailed dimensions, including height and depth, are crucial for accurate panel design and ensuring adequate space for wiring and other components. Refer to the official Siemens product datasheet for precise measurements.

Accurate dimensional data is essential for efficient panel layout, preventing overcrowding and ensuring proper ventilation and accessibility for maintenance.

What is the ambient temperature range for operation?

The Siemens 5SY6202-8CC is rated for operation within an ambient temperature range of -25 °C to +55 °C. This wide range makes it suitable for diverse environmental conditions found in industrial settings.

Operating the breaker outside its specified temperature range can affect its tripping characteristics and overall performance, potentially leading to premature failure or inaccurate protection.

Ensuring proper ventilation within the control panel is vital, especially in higher ambient temperatures, to help the breaker maintain its rated performance and longevity.

What does the "8CC" in the product number signify?

The "8CC" designation within the Siemens 5SY6202-8CC product number typically refers to specific product characteristics or series within Siemens' comprehensive catalog. It often denotes the specific tripping curve or a particular variant of the motor protection circuit breaker.

While not always explicitly detailed in general product descriptions, these suffixes help differentiate between various models with subtle differences in performance or features. Always consult Siemens documentation for precise meaning.

Understanding these suffixes ensures you are selecting the exact component with the required specifications for your particular application and compliance needs.

Where can I find the datasheet for the Siemens 5SY6202-8CC?

The most reliable source for the official datasheet of the Siemens 5SY6202-8CC is the Siemens Industry Online Support (SIOS) platform or the official Siemens product catalog. These resources provide comprehensive technical details, including full specifications, dimensional drawings, and application guidelines.

Searching the Siemens SIOS portal using the exact product number "5SY6202-8CC" will yield the most accurate and up-to-date documentation. Ensure you download the version relevant to your region and application.

Official datasheets are critical for engineers and technicians to verify product compliance, plan installations, and troubleshoot effectively, offering the definitive technical information for the device.