Siemens 5SV4412-0 Double Pole Disconnector Switch 2P 25A 100mA

The Siemens 5SV4412-0 Double Pole Disconnector Switch 2P 25A 100mA is a critical component for ensuring electrical safety and operational reliability in various industrial and commercial applications. This high-performance disconnector switch provides robust circuit protection with a rated current of 25A and a sensitivity of 100mA, effectively safeguarding against overcurrents and earth leakage faults. Its double-pole design ensures complete isolation of both live conductors, enhancing safety during maintenance or in fault conditions. Engineered with Siemens' renowned quality and precision, the 5SV4412-0 offers dependable performance, long service life, and straightforward integration into existing electrical systems, making it an ideal choice for professionals seeking a reliable and compliant circuit protection solution.

Product Specifications

| Parameter               | Specification                     |

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

| Product Type            | Double Pole Disconnector Switch   |

| Manufacturer            | Siemens                           |

| Model Number            | 5SV4412-0                         |

| Number of Poles         | 2                                 |

| Rated Current (In)      | 25 A                              |

| Rated Residual Current  | 100 mA                            |

| Rated Voltage (Un)      | 230/400 V AC                      |

| Tripping Characteristic | AC Type                           |

| Breaking Capacity       | 6 kA                              |

| Mounting Type           | DIN Rail                         |

| Frequency               | 50/60 Hz                          |

| Protection Class        | IP20                              |

Core Features & Market Positioning

The Siemens 5SV4412-0 stands out in the competitive electrical components market due to its dual functionality as both a disconnector and a residual current device (RCD). This integration simplifies panel design and reduces installation complexity, offering a cost-effective solution without compromising on safety or performance. Its robust construction, characteristic of Siemens industrial products, ensures durability and reliable operation even in demanding environments. The 100mA residual current sensitivity is particularly valuable for applications requiring enhanced protection against fire hazards and electric shock, positioning it as a premium choice for specifiers and installers prioritizing safety standards.

Key Application Scenarios

This disconnector switch is ideally suited for a wide array of applications where reliable protection against overcurrents and dangerous earth leakages is paramount. It is commonly deployed in distribution boards, sub-distribution systems, and industrial control panels within commercial buildings, manufacturing facilities, and residential complexes. Specific use cases include protecting circuits for lighting, sockets, machinery, and sensitive electronic equipment. The 2P configuration ensures complete isolation for single-phase circuits, making it a standard component in installations adhering to stringent safety regulations.

Practical System Integration Guidance

Installing the Siemens 5SV4412-0 is designed for efficiency, utilizing a standard DIN rail mounting system for quick and secure integration into electrical enclosures. Proper wiring is crucial for optimal performance; ensure that both live and neutral conductors are connected to their respective terminals on the disconnector. When used as an RCD, it's imperative to connect the incoming supply to the load side terminals and the protected circuit to the line side. For installations requiring multiple protection devices, careful consideration of upstream and downstream RCD coordination is advised to prevent nuisance tripping.

Operation and Risk Mitigation

The primary function of the Siemens 5SV4412-0 is to automatically disconnect the electrical circuit when it detects an imbalance between the live and neutral currents, indicative of an earth fault or leakage. This rapid disconnection significantly reduces the risk of electric shock and fire. Regular testing of the RCD functionality using the integrated test button is essential to ensure its continued operational integrity. In the event of a fault, the switch will trip, requiring a manual reset after the fault condition has been identified and rectified. Never attempt to reset the switch without addressing the underlying cause of the trip.

Scalability & Long-Term Value

While the 5SV4412-0 is a standalone protective device, its compatibility with the broader Siemens industrial control and automation ecosystem offers significant long-term value. It can be seamlessly integrated into larger electrical distribution systems, including those incorporating smart metering or remote monitoring capabilities, should the facility evolve towards IIoT integration. The robust design and high-quality components ensure a long operational lifespan, minimizing the need for premature replacement and contributing to the overall reliability and cost-effectiveness of the electrical infrastructure. Its adherence to international standards also ensures ongoing compliance as regulations evolve.

Frequently Asked Questions

What is the primary function of the Siemens 5SV4412-0?

The Siemens 5SV4412-0 serves as a double-pole disconnector and a residual current device (RCD). It protects electrical circuits from overcurrents and earth leakage faults. This dual functionality ensures enhanced safety in various installations.

Its key role is to prevent electrical shocks and fires caused by insulation failures. The 100mA sensitivity is designed for supplementary protection against indirect contact. This device is a crucial safety component.

The disconnector feature allows for complete isolation of both live and neutral conductors. This is vital for safe maintenance procedures and system isolation. It ensures the circuit is fully de-energized.

What are the main advantages of using a double pole disconnector switch?

Double pole switches ensure complete isolation of both live and neutral conductors. This enhances safety during maintenance and fault conditions. It provides a higher level of security than single-pole devices.

This type of switch is crucial for AC circuits, particularly in single-phase systems. It prevents current flow from either conductor when switched off. This comprehensive disconnection is a key safety feature.

Using a double pole disconnector simplifies panel design and wiring for single-phase applications. It reduces the number of components needed. This integration offers efficiency and reliability.

How does the 100mA residual current sensitivity work?

The 100mA sensitivity detects small imbalances in current between the live and neutral wires. Such imbalances usually indicate current is leaking to earth. This leakage can be through a person or a faulty appliance.

When a leakage current of 100mA or more is detected, the RCD rapidly trips. This breaks the circuit, stopping the flow of electricity. This action minimizes the risk of severe electric shock.

This sensitivity level is typically used for fire protection and supplementary protection in specific circuits. It offers a higher level of safety than standard RCDs with higher trip currents. It's a vital safety measure.

What types of electrical systems is the Siemens 5SV4412-0 suitable for?

This disconnector switch is suitable for single-phase AC power distribution systems. It is commonly found in residential, commercial, and industrial applications. It ensures protection in these environments.

It can be integrated into main distribution boards, sub-distribution panels, and control cabinets. Its DIN rail mounting makes installation straightforward. It is a versatile component.

The 25A rating and 100mA sensitivity make it ideal for circuits powering sockets, lighting, and light machinery. It is a standard for protecting circuits where earth fault protection is critical.

Can this switch be used for DC circuits?

The Siemens 5SV4412-0 is designed and rated for AC circuits only. It utilizes a tripping mechanism specific to AC fault currents. Using it on DC circuits is not recommended and can be dangerous.

DC circuits have different fault characteristics than AC circuits. Standard AC RCDs may not effectively detect DC leakage or could fail to operate correctly. This device is strictly for AC applications.

For DC circuit protection, specific DC-rated disconnectors and RCDs are required. Always consult the product datasheets and relevant electrical codes for DC system requirements.

What is the breaking capacity of the Siemens 5SV4412-0?

The breaking capacity of the Siemens 5SV4412-0 is 6 kA. This indicates the maximum fault current the switch can safely interrupt without damage. It ensures protection against severe short circuits.

A 6 kA breaking capacity is sufficient for many standard residential and commercial installations. It provides a reliable level of protection against overcurrents. It meets typical safety standards.

Higher breaking capacity devices are available for systems with higher potential fault currents. It's important to select a disconnector switch that matches the fault level of the specific electrical installation.

How do I perform a test on the Siemens 5SV4412-0?

The Siemens 5SV4412-0 is equipped with a test button for periodic functional checks. Pressing this button simulates an earth fault condition. This tests the RCD's tripping mechanism.

To test, ensure the circuit is energized and the switch is in the 'ON' position. Then, press the 'T' (Test) button. The switch should trip immediately. If it doesn't trip, the device may be faulty and requires replacement.

It is recommended to test RCDs monthly to ensure their continued reliability and safety. Always follow manufacturer instructions and local electrical regulations for testing procedures.

What does "Double Pole" mean in the context of this switch?

"Double Pole" signifies that the switch controls and disconnects two separate electrical conductors simultaneously. For AC circuits, these are typically the live (phase) and neutral wires. This provides complete isolation.

This is distinct from a single-pole switch, which only interrupts one conductor (usually the live wire). A double-pole switch ensures that neither conductor remains live when the circuit is open. This is crucial for safety.

The double-pole design is standard for single-phase circuits in many regions, ensuring a higher level of safety by completely isolating the circuit from the power source. It is essential for applications requiring full circuit de-energization.

What is the significance of the 25A rating?

The 25A rating refers to the maximum continuous current the switch can safely handle without overheating or failing. This is the rated current (In) for the circuit the disconnector is protecting. It dictates the size of the circuit it can be installed in.

This rating ensures that the switch will not become a point of failure under normal operating conditions for circuits drawing up to 25 amperes. Exceeding this rating can lead to damage and potential fire hazards.

When selecting a disconnector switch, it's crucial to match its current rating to the load requirements of the circuit. The 25A rating makes this Siemens model suitable for a range of medium-load applications.

Where can I find documentation or support for this product?

Official documentation, including datasheets and installation manuals, can typically be found on the Siemens industry or building technologies official websites. These resources provide detailed technical specifications and operational guidance.

For technical support, troubleshooting, or inquiries about compatibility and integration, contacting Siemens' customer service or their authorized distributors is the most reliable approach. They can provide expert assistance tailored to your specific needs.

When seeking support, having the exact product model number (5SV4412-0) readily available will expedite the process. This ensures you receive accurate information and relevant solutions for your application.