Siemens 5SV3647-6KK01 Residual Current MCB Module 4P 80A 300mA

The Siemens 5SV3647-6KK01 is a four-pole, 80A, 300mA Residual Current Miniature Circuit Breaker (RCBO) module, engineered for robust electrical protection. This device offers superior safety by combining overcurrent and earth leakage protection, significantly reducing the risk of electrical fires and shocks. Its high breaking capacity and sensitive earth fault detection make it an ideal choice for demanding industrial and commercial applications requiring stringent safety standards. The 5SV3647-6KK01 is designed for reliable operation in diverse environments, ensuring continuous power supply integrity.

Product Specifications

| Feature                     | Specification                                |

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

| Product Type                | Residual Current MCB Module (RCBO)           |

| Number of Poles             | 4P (Four-Pole)                               |

| Rated Current (In)          | 80A                                          |

| Rated Residual Current (IΔn)| 300mA                                        |

| Breaking Capacity (Icn)     | 6kA                                          |

| Voltage Rating              | 400V AC                                      |

| Frequency                   | 50/60 Hz                                     |

| Tripping Type               | AC Type                                      |

| Mounting Type               | DIN Rail (35mm)                              |

| Terminal Type               | Screw Terminals                              |

| Protection Class            | IP20 (enclosure)                             |

| Ambient Temperature Range   | -25°C to +45°C                               |

| Standards Compliance        | IEC/EN 61009-1, IEC/EN 60947-2               |

Core Features & Market Positioning

The Siemens 5SV3647-6KK01 stands out in the market due to its integrated protection capabilities, offering both overcurrent (short-circuit and overload) and residual current protection in a single unit. This integration simplifies electrical panel design and reduces installation time and cost compared to separate MCBs and RCDs. The 300mA residual current sensitivity is optimized for fire protection in various settings, providing an essential layer of safety. Its robust construction and adherence to stringent IEC/EN standards ensure high reliability and long service life, positioning it as a premium solution for critical infrastructure and industrial facilities where safety and uptime are paramount. The brand's reputation for quality and innovation further solidifies its competitive edge.

Key Application Scenarios

The Siemens 5SV3647-6KK01 is exceptionally well-suited for protecting main distribution boards and sub-distribution boards in industrial plants, commercial buildings, and data centers. It is particularly vital in areas with higher risks of electrical faults or where sensitive equipment is present, such as manufacturing floors, laboratories, and server rooms. Its four-pole configuration makes it ideal for three-phase power systems, ensuring comprehensive protection for motors, machinery, and complex electrical installations. The 300mA tripping current is specified for applications requiring enhanced fire prevention measures, including installations in buildings with combustible materials.

Practical System Integration Guidance

Integrating the Siemens 5SV3647-6KK01 into existing or new electrical systems is straightforward due to its standard DIN rail mounting and accessible screw terminals. For installation, ensure the main power supply is de-energized. Connect the incoming live conductors (L1, L2, L3, N) to the respective top terminals and the outgoing protected circuits to the bottom terminals. Proper grounding of the system is crucial for the residual current protection to function effectively. When wiring, ensure correct conductor sizing for the 80A rating to prevent overheating. This RCBO module is designed to be a direct replacement for traditional MCB and RCD combinations, simplifying panel upgrades and new installations.

Operation and Risk Mitigation

The Siemens 5SV3647-6KK01 operates by continuously monitoring the balance of current flowing through the live and neutral conductors. If an imbalance exceeding 300mA occurs, indicating a potential earth fault or leakage current, the device rapidly trips, disconnecting the power supply. This action is critical for preventing electric shock, mitigating the risk of electrical fires caused by fault currents, and protecting electrical equipment from damage. To ensure optimal performance and safety, regular testing of the RCBO function using its integrated test button (typically marked 'T') is recommended, as per local electrical codes and manufacturer guidelines. This testing verifies the internal mechanism is free from dust and corrosion, ensuring its readiness to protect.

Scalability & Long-Term Value

The Siemens 5SV3647-6KK01 offers excellent long-term value through its robust design and compatibility with Siemens' broader electrical distribution systems. While the module itself is a fixed-specification device, its integration into a larger system allows for scalability by adding further protection modules or upgrading upstream/downstream components. Its adherence to international standards ensures it remains compliant and functional with evolving electrical infrastructure. For organizations embracing digitalization and the Industrial Internet of Things (IIoT), this RCBO can be part of a smart electrical panel, providing reliable foundational protection that can be monitored remotely if integrated with compatible smart meters or data loggers, thus contributing to predictive maintenance strategies.

FAQs

Q1: What is the primary function of the Siemens 5SV3647-6KK01?

The Siemens 5SV3647-6KK01 is an RCBO, combining MCB and RCD features. It protects against overcurrents like overloads and short circuits. Simultaneously, it detects and interrupts earth leakage currents at 300mA.

This dual protection is vital for preventing electrical fires and safeguarding individuals from electric shocks. It ensures a higher level of electrical safety in various installations.

The device is designed for reliable operation in demanding environments, offering peace of mind. Its compact design also simplifies panel installations.

Q2: What does "4P 80A 300mA" signify for this Siemens module?

"4P" means it is a four-pole device, suitable for three-phase power systems including a neutral conductor. "80A" indicates its rated current carrying capacity, meaning it can safely handle up to 80 Amperes continuously.

"300mA" specifies the residual current sensitivity. It will trip when it detects an earth leakage current of 300 milliamperes or more. This level is often used for fire protection.

Together, these parameters define the module's application scope: protecting three-phase circuits with high current loads against both overcurrent faults and dangerous earth leakages.

Q3: Is the Siemens 5SV3647-6KK01 suitable for residential use?

While it offers excellent protection, the 300mA tripping current is typically intended for fire protection, not personal protection. For residential applications requiring personal safety, a 30mA RCD is usually recommended.

This 80A, 300mA four-pole module is more commonly found in industrial or commercial settings. Its higher current rating and specific tripping sensitivity align with those needs.

However, it can be used in specific parts of a residential installation if local codes mandate fire protection at this level for certain circuits. Always consult an electrician.

Q4: What type of electrical faults does this RCBO module detect?

This RCBO module detects two main types of electrical faults. Firstly, it acts as a Miniature Circuit Breaker (MCB) to protect against overcurrents. These include sustained overloads and sudden short circuits.

Secondly, it functions as a Residual Current Device (RCD) to detect earth leakage currents. This occurs when electricity takes an unintended path to the ground. The sensitivity is set at 300mA.

By detecting both, it provides comprehensive protection against common electrical hazards that could lead to damage or injury.

Q5: What are the advantages of using a combined RCBO like the Siemens 5SV3647-6KK01?

Using a combined RCBO simplifies electrical panel design and installation. It replaces the need for separate MCB and RCD units, saving space and wiring time.

It ensures coordinated protection. The overcurrent and earth leakage protection are integrated into a single device, offering a streamlined safety solution.

This reduces the overall component count and can lead to cost savings in terms of both parts and labor for installation and maintenance.

Q6: How do I install the Siemens 5SV3647-6KK01 into an electrical panel?

Installation requires de-energizing the main power supply for safety. The module is designed for mounting on a standard 35mm DIN rail within the electrical panel.

Connect the incoming live (L1, L2, L3) and neutral (N) conductors to the designated terminals on the top of the device. Then, connect the outgoing conductors for the protected circuit to the terminals on the bottom.

Ensure all connections are secure and correctly sized for the 80A rating. Proper grounding of the entire system is also essential for the residual current protection function.

Q7: Can I replace a standard 4-pole MCB with this RCBO module?

Yes, if the existing MCB is a 4-pole unit and the circuit requires the same or lower current rating (80A in this case) and protection levels. The Siemens 5SV3647-6KK01 is designed with standard dimensions for DIN rail mounting.

However, ensure the circuit's characteristics match the RCBO's specifications, including the voltage rating (400V AC) and breaking capacity (6kA). The addition of residual current protection is a significant upgrade.

Always confirm compatibility and consult an electrician to ensure the replacement meets all safety and regulatory requirements for your specific application.

Q8: How often should I test the residual current function of this module?

It is crucial to test the residual current function regularly to ensure it operates correctly. The manufacturer typically recommends monthly testing using the built-in test button.

Pressing the test button simulates an earth fault, and the module should trip, immediately disconnecting the power. This confirms the RCD part of the RCBO is functional.

Regular testing is a vital part of maintaining electrical safety and compliance with regulations. Record test dates for maintenance logs.

Q9: What is the breaking capacity (Icn) of the Siemens 5SV3647-6KK01?

The Siemens 5SV3647-6KK01 has a breaking capacity (Icn) of 6kA (kiloamperes). This specifies the maximum fault current the device can safely interrupt without being destroyed.

A 6kA rating is suitable for many standard industrial and commercial installations. It indicates the module's ability to handle short-circuit events effectively.

For applications with higher potential fault currents, a device with a greater breaking capacity might be necessary. Always verify this parameter against your system's requirements.

Q10: Does this RCBO module offer protection against overvoltage?

No, the Siemens 5SV3647-6KK01 does not provide direct protection against overvoltage surges. Its primary functions are overcurrent protection (overload and short circuit) and residual current detection.

Overvoltage protection typically requires separate devices like surge protective devices (SPDs). These are installed in conjunction with MCBs or RCBOs to safeguard against transient voltage events.

Ensure your electrical installation includes appropriate overvoltage protection measures if required by the application or local electrical codes.