Siemens 5SV4617-0 Surge Overvoltage Protector 2P 80A 300mA

The Siemens 5SV4617-0 Surge Overvoltage Protector 2P 80A 300mA stands as a robust solution for safeguarding electrical installations against transient overvoltages and residual currents, ensuring operational continuity and personnel safety. This Type 2 surge protective device (SPD) offers a reliable defense mechanism, characterized by its compact design and high performance. Key advantages include its dual-functionality, providing protection against both surges and earth leakage currents, and its suitability for a wide range of applications. Its core features encompass a 2-pole configuration, a rated current of 80A, and a sensitivity of 300mA, all housed within a standard DIN rail mountable package.

Product Specifications

| Feature                   | Specification                                    |

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

| Product Type              | Surge Overvoltage Protector (Type 2 SPD)         |

| Pole Configuration        | 2-Pole (2P)                                      |

| Rated Current (In)        | 80A                                              |

| Residual Current          | 300mA                                            |

| Nominal Discharge Current | 20 kA                                            |

| Max. Discharge Current    | 40 kA                                            |

| Voltage Protection Level  | ≤ 1.5 kV                                         |

| Operating Temperature     | -40°C to +70°C                                   |

| Protection Class          | IP20                                             |

| Mounting Type             | DIN Rail (35mm)                                  |

| Standards Compliance      | IEC 61643-11, EN 61643-11                         |

Core Features & Market Positioning

The Siemens 5SV4617-0 distinguishes itself through its integrated residual current device (RCD) functionality, offering a dual-layer protection strategy often sought after in industrial and commercial settings. This combination simplifies panel building and reduces installation complexity compared to separate SPD and RCD units. Its high surge current handling capacity (40kA max.) ensures protection against severe transient events, while the 300mA residual current sensitivity is ideal for general circuit protection against indirect contact. Siemens' reputation for quality and reliability further solidifies the 5SV4617-0's position as a trusted component in critical electrical infrastructure, appealing to users prioritizing safety, durability, and compliance with stringent international standards.

Key Application Scenarios

This surge protector finds critical application in protecting sensitive electronic equipment and electrical systems from lightning-induced surges and switching transients, prevalent in areas with overhead power lines or frequent industrial switching operations. It is extensively used in power distribution boards for commercial buildings, industrial facilities, and even residential complexes where reliable power quality is paramount. The integrated 300mA RCD makes it particularly suitable for circuits supplying machinery, lighting, and general power outlets, offering enhanced protection against earth faults and electric shock, thereby meeting safety regulations and ensuring uninterrupted operation of essential services.

Practical System Integration Guidance

Integrating the Siemens 5SV4617-0 into existing or new electrical panels is straightforward due to its standard 35mm DIN rail mounting. For optimal performance, it should be installed as close as possible to the incoming power supply or at the distribution points where protection is required. Proper grounding is essential; connect the dedicated grounding terminal of the SPD to the main earthing terminal of the installation. When wiring, ensure that the incoming live and neutral conductors are connected to the corresponding terminals of the 5SV4617-0, and the outgoing protected conductors are then fed to the downstream circuits. Adhering to local electrical codes and guidelines during installation is imperative for ensuring safe and effective operation.

Operation and Risk Mitigation

The 5SV4617-0 operates by diverting transient overvoltages safely to ground, thus preventing damage to connected equipment. The integrated RCD monitors the current flowing in the live and neutral conductors; if an imbalance (indicating a fault current to earth) exceeding 300mA is detected, it rapidly trips, disconnecting the circuit. Risk mitigation is primarily achieved through its robust surge suppression capabilities and the RCD's earth fault protection. Regular visual inspection of the device for any signs of damage or discoloration, and periodic testing of the RCD function (typically via a built-in test button or external tester) are recommended to ensure its continued efficacy and compliance with safety standards.

Scalability & Long-Term Value

The Siemens 5SV4617-0 offers excellent long-term value through its inherent durability and compatibility with Siemens' broader range of industrial electrical components. While this specific unit provides a fixed level of protection, scalability in a system context can be achieved by deploying multiple 5SV4617-0 units at various distribution points or by selecting higher-rated Siemens SPDs for incoming mains if necessary. Its adherence to international standards ensures it integrates seamlessly with systems utilizing components from different manufacturers. The product's robust construction minimizes the need for frequent replacements, contributing to lower total cost of ownership and sustained operational reliability within evolving industrial environments.

Frequently Asked Questions

What is the primary function of the Siemens 5SV4617-0?

The Siemens 5SV4617-0 primarily protects electrical systems from damaging surge overvoltages. It also functions as a residual current device, safeguarding against earth faults. This dual protection enhances safety and operational reliability.

How does the 80A rating affect its application?

The 80A rating indicates the maximum continuous current the device can handle. It is suitable for circuits with significant power demands, common in industrial or commercial distribution boards. This ensures it can protect circuits carrying substantial loads without overheating.

What does the 300mA sensitivity signify?

A 300mA sensitivity means the device will trip when it detects an earth leakage current of 300 milliamperes. This level is generally used for protecting installations and preventing fires, offering a balance between sensitivity and nuisance tripping. It is a standard for supplementary protection.