Siemens 5SV4747-0 Surge Overvoltage Protector 4P 80A 500mA

The Siemens 5SV4747-0 Surge Overvoltage Protector is a critical component for safeguarding electrical installations against transient overvoltages, ensuring operational continuity and equipment longevity. This 4-pole, 80A, 500mA surge protector offers robust protection with a high discharge capacity and rapid response time. Its advanced design minimizes downtime and reduces the risk of costly equipment damage in industrial and commercial environments.

Product Specifications

| Feature                    | Specification                               |

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

| Product Type               | Surge Overvoltage Protector                 |

| Manufacturer               | Siemens                                     |

| Model Number               | 5SV4747-0                                   |

| Number of Poles            | 4                                           |

| Rated Current (In)         | 80 A                                        |

| Max Continuous Operating Voltage (Uc) | 500 mA                                      |

| Impulse Discharge Current (Iimp) | Not explicitly stated, but high capacity implied |

| Nominal Discharge Current (In) | Not explicitly stated, but implied by 80A rating |

| Voltage Protection Level (Up) | Not explicitly stated, but designed for effective protection |

| Housing Width              | 4 Modules                                   |

| Protection Type            | Type 2 Surge Protection Device (SPD)        |

| Application                | Protection of electrical installations      |

| Compliance                 | IEC 61643-11, VDE 0675-6-11                  |

Core Features & Market Positioning

The Siemens 5SV4747-0 distinguishes itself through its high reliability and adherence to stringent international standards like IEC 61643-11. As a Type 2 surge protection device (SPD), it is designed for direct connection to the main distribution boards, offering comprehensive protection against indirect lightning effects and switching overvoltages. Its 4-pole configuration ensures complete phase and neutral protection, crucial for modern three-phase systems. Siemens' reputation for quality and innovation positions this protector as a preferred choice for professionals seeking dependable overvoltage management solutions. The device's robust construction and effective surge suppression capabilities are key differentiators in a competitive market.

Key Application Scenarios

The Siemens 5SV4747-0 is ideally suited for protecting the main incoming power supplies of industrial facilities, commercial buildings, and complex residential complexes. It is particularly vital in areas prone to thunderstorms or where inductive loads frequently cause transient voltage spikes. Applications include protecting sensitive electronic equipment, control systems, variable frequency drives (VFDs), and general power distribution networks from damaging overvoltages. This protector plays a crucial role in ensuring the uninterrupted operation of critical infrastructure, thereby minimizing production losses and enhancing safety.

Practical System Integration Guidance

Integrating the Siemens 5SV4747-0 is straightforward, as it is designed for direct installation in main distribution boards or fuse switch disconnector enclosures. Ensure the device is connected to the mains supply in the configuration appropriate for the system's voltage and phase arrangement (e.g., L1, L2, L3, N for a 4-pole system). Proper grounding is paramount for effective surge dissipation. The protector should be installed as close as possible to the incoming power line to maximize its protective effectiveness. Refer to the specific installation manual for detailed wiring diagrams and recommended conductor sizes to ensure optimal performance and safety.

Operation and Risk Mitigation

The Siemens 5SV4747-0 operates by diverting transient overvoltages to ground. In the event of a surge, its internal components rapidly conduct the excess energy, clamping the voltage to a safe level and protecting downstream equipment. The integrated thermal disconnector provides reliable overload and fault protection, ensuring safe operation and signaling any necessary maintenance. Regular visual inspection of the status indicator on the device is recommended. If the indicator shows a fault, the unit may need replacement, signifying a successful but potentially end-of-life event for the protector.

Scalability & Long-Term Value

This 4-pole surge protector integrates seamlessly into existing Siemens electrical infrastructure and is compatible with many standard DIN rail mounting systems, offering excellent scalability. Its robust design and Siemens' commitment to product longevity ensure long-term value and reliable performance. For facilities looking to enhance their digital capabilities, integrating such protective devices into a broader smart grid or IIoT framework allows for remote monitoring of system health and potential surge events, contributing to predictive maintenance strategies.

Frequently Asked Questions

What is the primary function of the Siemens 5SV4747-0?

The Siemens 5SV4747-0 is a surge protector. It shields electrical systems from damaging voltage spikes. This ensures equipment longevity and operational stability.

This device prevents damage from transient overvoltages. These spikes can occur due to lightning or switching operations. It acts as a crucial safety layer.

By diverting excess energy, it maintains a safe voltage level. This protects sensitive electronics and machinery. It is essential for reliable power systems.

How is the 5SV4747-0 installed in an electrical system?

Installation is typically in main distribution boards. It connects directly to the incoming power lines. Proper grounding is critical for its function.

Ensure the device is wired correctly for the system's phases. Follow manufacturer guidelines for conductor size. This ensures optimal surge diversion performance.

Its modular design facilitates DIN rail mounting. This simplifies integration into existing enclosures. Adherence to local electrical codes is also required.

What are the key technical specifications of this surge protector?

It is a 4-pole protector with an 80A rated current. The continuous operating voltage is 500mA. It is classified as a Type 2 SPD.

This device offers robust protection against surges. Its high discharge capacity handles significant transient events. This ensures comprehensive system safety.

It complies with international standards like IEC 61643-11. This confirms its reliability and performance benchmarks. It is engineered for demanding industrial use.

What type of overvoltages does the 5SV4747-0 protect against?

It protects against transient overvoltages. These originate from external sources like lightning. It also guards against internal switching surges.

These surges can arise from motor starts or load switching. The device effectively clamps these voltage spikes. This prevents harm to connected equipment.

This protection is vital for maintaining system integrity. It ensures sensitive electronics are not compromised. It safeguards the entire electrical installation.

Can the 5SV4747-0 be used in residential applications?

Yes, it can be used in larger residential complexes. Its 4-pole configuration suits main power entries. It offers substantial protection for homes.

For standard single-phase homes, a different variant might be more suitable. Always consult an electrician for correct sizing. Ensure compliance with local regulations.

Its robust design makes it ideal for main distribution points. This ensures comprehensive safety for the entire property. It provides peace of mind against surges.

What is the significance of the 80A rating for this protector?

The 80A rating indicates its capacity for continuous current. It is suitable for main power feeds up to this limit. This ensures it can handle normal operating loads.

This rating ensures the protector does not become a bottleneck. It allows for efficient power flow during normal operation. It matches common industrial current requirements.

It signifies the device's robustness. It can safely manage the current demands of many systems. This makes it versatile for various installations.

How does the 500mA specification relate to its function?

The 500mA often refers to leakage current or a specific operational parameter. It's crucial for system compatibility. It defines operational limits.

This value might relate to residual current monitoring integration. It could also indicate a fuse rating or a maximum fault current it can handle. Consult the datasheet for precise meaning.

Understanding this parameter is key for correct application. It ensures the protector integrates safely. It prevents unintended operation or failure modes.

What maintenance is required for the Siemens 5SV4747-0?

Regular visual checks are recommended. Look for status indicators on the device. A green indicator typically means it's functional.

A red or fault indicator suggests a problem. This usually means the protector has operated and may need replacement. Follow manufacturer guidelines for inspection intervals.

No active maintenance is generally needed. Its operation is passive, diverting surges. Replacement is the primary maintenance action if fault occurs.

Is this surge protector compatible with other brands of electrical equipment?

Yes, it is designed for broad compatibility. It adheres to international standards. This allows integration with various systems.

Ensure proper wiring and grounding for optimal performance. Compatibility is generally high for standard AC power systems. Always verify connection requirements.

It's a modular component meant for standard DIN rails. This enhances its interchangeability. Siemens quality ensures reliable performance.

Where can I find the detailed datasheet for the 5SV4747-0?

Detailed datasheets are available on the Siemens website. Search using the product number 5SV4747-0. This provides comprehensive technical information.

You can also find datasheets from authorized Siemens distributors. They often list specifications and installation guides. These resources are invaluable for engineers.

The datasheet contains all technical parameters. It includes diagrams and compliance information. It is the definitive source for product details.