Siemens 5SV3644-6KK01 Residual Current MCB Module 4P 40A 300mA

The Siemens 5SV3644-6KK01 is a four-pole, 40A, 300mA residual current circuit breaker (RCCB) module designed for robust electrical protection in demanding industrial environments. This advanced module offers superior safety through its high breaking capacity and sensitive fault current detection, minimizing risks of electric shock and fire hazards. Its compact design facilitates seamless integration into existing switchgear, while its robust construction ensures reliable operation even under harsh conditions.

Product Specifications

| Feature                      | Specification                                 |

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

| Product Type                 | Residual Current Circuit Breaker (RCCB) Module |

| Manufacturer                 | Siemens                                       |

| Model Number                 | 5SV3644-6KK01                                 |

| Number of Poles              | 4-pole                                        |

| Rated Current (In)           | 40 A                                          |

| Rated Residual Current (IΔn) | 300 mA                                        |

| Rated Voltage (Un)           | 400 V AC                                      |

| Frequency                    | 50/60 Hz                                      |

| Tripping Characteristic      | AC Type                                       |

| Breaking Capacity (Icn)      | 6 kA                                          |

| Mounting Type                | DIN Rail                                      |

| Compliance                   | IEC/EN 61008-1                                |

Core Features & Market Positioning

The Siemens 5SV3644-6KK01 distinguishes itself through its reliable performance and adherence to stringent international safety standards, including IEC/EN 61008-1. Its Type AC tripping characteristic ensures effective protection against sinusoidal alternating fault currents, a common occurrence in industrial settings. This robust design positions it as a dependable choice for safeguarding personnel and equipment against electrical hazards, offering a critical layer of safety in complex electrical installations. The 40A rating and 6kA breaking capacity provide substantial protection margins for medium-load circuits.

Key Application Scenarios

This Siemens residual current MCB module is ideally suited for a broad range of industrial applications, including power distribution in manufacturing plants, protection of machinery in workshops, and safeguarding electrical systems in commercial buildings. It is particularly valuable in environments where the risk of electrical shock or fire due to ground faults is a concern, such as areas with increased moisture or conductive dust. Its 300mA residual current sensitivity is appropriate for general circuit protection where preventing severe shocks is paramount, rather than immediate fire prevention which often requires lower leakage current detection.

Practical System Integration Guidance

Integration of the Siemens 5SV3644-6KK01 into existing electrical panels is straightforward due to its standard DIN rail mounting capability. Proper wiring involves connecting the incoming phase and neutral conductors to the designated L and N terminals, and the outgoing protected circuit to the corresponding output terminals. It's crucial to ensure that the main incoming power supply is correctly terminated across all four poles for comprehensive protection. For systems requiring higher fault current withstand, it must be used in conjunction with appropriately rated upstream overcurrent protective devices.

Operation and Risk Mitigation

The 5SV3644-6KK01 operates by continuously monitoring the balance of current flowing through the phase and neutral conductors. If an imbalance exceeding 300mA occurs, indicating a potential fault to ground, the module rapidly trips, interrupting the circuit and preventing dangerous conditions. To mitigate risks, regular testing of the RCCB module using its integrated test button is essential. This ensures the tripping mechanism remains functional. Following wiring diagrams precisely and avoiding overloading circuits beyond the 40A rating are critical operational practices to maintain safety and device longevity.

Scalability & Long-Term Value

As part of Siemens' extensive electrical protection portfolio, the 5SV3644-6KK01 offers compatibility with other Siemens industrial components, facilitating system expansion and upgrades. Its robust construction is designed for a long operational lifespan, providing consistent protection over years of service. While this specific module is not directly IIoT enabled, its reliable performance within a larger Siemens-based electrical infrastructure contributes to the overall stability and safety required for digital integration of other plant components.

FAQs

What is the primary function of the Siemens 5SV3644-6KK01?

The Siemens 5SV3644-6KK01 serves as a four-pole residual current circuit breaker module. Its main purpose is to protect electrical installations and personnel from dangerous earth leakage currents.

It detects imbalances in current flow, swiftly disconnecting the power supply to prevent electric shock and fire hazards. This device is crucial for enhancing safety in various industrial and commercial applications.

This specific model is rated for 40 Amperes and trips at 300 milliamperes of residual current, providing a significant level of protection.

How do I wire the Siemens 5SV3644-6KK01?

Wiring involves connecting the incoming power supply to the module's input terminals. The four poles accommodate both line and neutral conductors for comprehensive coverage.

Ensure incoming phases are connected to the designated input terminals and the outgoing protected circuit conductors are connected to the output terminals. Follow the terminal markings precisely.

Refer to the product manual for detailed wiring diagrams and ensure all connections are secure and insulated to prevent faults. Always disconnect power before commencing any wiring work.

What does 300mA residual current mean for protection?

A 300mA tripping current indicates the sensitivity of the device to earth faults. It's designed to detect significant leakage currents that pose a serious risk.

This level is typically used for main protective devices or in applications where fire prevention is a key concern due to potential overheating from persistent leakage.

While it protects against severe shocks, lower sensitivities (e.g., 30mA) are often required for direct personal protection, especially in residential or sensitive environments.

Is the Siemens 5SV3644-6KK01 suitable for domestic use?

While technically capable, the 300mA sensitivity is generally too high for primary personal protection in domestic settings. Lower rated devices are preferred for homes.

Domestic installations typically require RCDs with 30mA sensitivity for protection against electric shock. This 5SV3644-6KK01 is better suited for industrial or commercial main distribution.

Its robust construction and higher current rating are geared towards the demands of industrial environments, not standard residential circuits.

What is the breaking capacity of the 5SV3644-6KK01?

The module features a breaking capacity of 6 kA (kiloamperes). This indicates its ability to safely interrupt fault currents up to this level without sustaining damage.

A higher breaking capacity ensures the device can handle short-circuit events effectively, preventing catastrophic failure and protecting downstream equipment.

This specification is critical for system design, ensuring the RCCB is adequately rated for the prospective fault current of the circuit it protects.

Can this module protect against overload or short circuit?

No, the Siemens 5SV3644-6KK01 is a residual current device (RCD) and does not provide overload or short-circuit protection. It specifically detects earth leakage currents.

Overload and short-circuit protection must be provided by a separate circuit breaker (MCB) or fuse upstream or integrated into the same enclosure. These devices work in tandem.

Combining an RCD like the 5SV3644-6KK01 with an MCB ensures comprehensive protection against all common electrical faults.

How often should I test the Siemens 5SV3644-6KK01?

Regular testing is essential to ensure the residual current tripping function remains operational. It is recommended to test monthly using the built-in test button.

Pressing the test button simulates an earth fault, and the device should trip, confirming the internal mechanism is functioning correctly. Always reset the breaker after testing.

This simple test helps mitigate the risk of the device failing to operate when a real earth fault occurs, thus maintaining safety standards.

What does "AC Type" tripping characteristic mean?

"AC Type" signifies that the residual current device is designed to detect sinusoidal alternating residual currents. These are the most common types of AC leakage currents.

It will not reliably detect pulsating direct current residual currents or smooth direct current residual currents. For these, Type A, B, or F devices are necessary.

For standard industrial AC power systems, Type AC is generally sufficient for detecting common fault conditions arising from alternating current faults.

What are the physical dimensions of the 5SV3644-6KK01?

The specific physical dimensions are crucial for panel space planning. This module adheres to standard modular widths for DIN rail mounting.

Each pole typically occupies one standard module width (18mm). Therefore, a 4-pole device will occupy 4 module widths in an electrical enclosure.

Detailed dimensional drawings and precise measurements can be found in the official Siemens technical documentation or product datasheet.

Where can I find the official datasheet for the 5SV3644-6KK01?

The official datasheet is available through Siemens' official channels. This includes their corporate website and technical documentation portals.

Searching for "Siemens 5SV3644-6KK01 datasheet" on a search engine will typically lead to the relevant PDF document. Always ensure you are downloading from an official source.

The datasheet contains comprehensive technical specifications, wiring diagrams, application guidelines, and compliance information.