Siemens 5SV3612-6KK01 RCBO with Overcurrent Protection 2P 25A 300mA

The Siemens 5SV3612-6KK01 RCBO stands as a robust solution for comprehensive electrical protection, seamlessly combining residual current and overcurrent protection within a single, compact device. This 2-pole, 25A unit with a 300mA sensitivity is engineered for demanding industrial environments, offering enhanced safety and reliability. Its key advantages include space-saving design, simplified installation, and superior fault detection capabilities, minimizing downtime and safeguarding personnel and equipment. Crucial technical parameters include its 25A rated current, 300mA residual current sensitivity, and a breaking capacity suitable for various industrial circuits.

| Feature                     | Specification                     |

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

| Product Type                | RCBO (Residual Current Circuit Breaker with Overcurrent Protection) |

| Manufacturer                | Siemens                             |

| Model Number                | 5SV3612-6KK01                     |

| Number of Poles             | 2                                 |

| Rated Current (In)          | 25A                               |

| Residual Current Rating (IΔn) | 300mA                             |

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

| Frequency                   | 50/60 Hz                          |

| Tripping Characteristic     | Type AC (for sinusoidal residual currents) |

| Breaking Capacity (Icn)     | 6kA                               |

| Terminal Type               | Screw Terminals                   |

| Mounting Type               | DIN Rail                          |

| Protection Class            | IP20                              |

Core Features & Market Positioning

The Siemens 5SV3612-6KK01 excels through its dual-functionality, consolidating an RCD and MCB into one unit. This integration not only reduces panel space and installation complexity but also enhances overall system safety by providing comprehensive protection against overloads, short circuits, and dangerous earth leakages. In the competitive landscape of industrial electrical components, Siemens' reputation for quality and reliability positions this RCBO as a preferred choice for critical infrastructure and demanding applications. Its Type AC tripping characteristic ensures effective protection against sinusoidal alternating residual currents, a common requirement in industrial settings.

Key Application Scenarios

This Siemens RCBO is ideally suited for protecting circuits in industrial facilities, commercial buildings, and manufacturing plants where reliable power distribution and robust safety are paramount. Specific applications include protecting machinery, control panels, and power distribution boards from electrical faults that could lead to equipment damage or fire hazards. Its 300mA sensitivity makes it suitable for main incomer protection where a higher level of earth leakage protection is required to prevent escalating faults. It is also commonly specified for circuits supplying sensitive electronic equipment that could be affected by even small residual currents.

Practical System Integration Guidance

Integrating the Siemens 5SV3612-6KK01 is straightforward, designed for standard DIN rail mounting in electrical enclosures. The 2-pole configuration allows for simultaneous disconnection of both line and neutral conductors, ensuring complete isolation. Wiring involves connecting the incoming power supply to the designated terminals and the outgoing load circuits to the respective output terminals. Proper grounding of the enclosure and downstream equipment is critical for the effective operation of the residual current detection function. Ensure that the cable cross-sectional area and termination are appropriate for the 25A rating to maintain reliable connections and prevent overheating.

Operation and Risk Mitigation

The 5SV3612-6KK01 operates by continuously monitoring the balance of current flowing in the live and neutral conductors. If an imbalance, indicating a leakage current to earth, exceeds the 300mA threshold, the device rapidly trips, interrupting the circuit. This protects against electric shock and prevents fires caused by insulation faults. Risk mitigation is inherent in its design, but regular testing using a dedicated RCD tester is recommended to ensure continued functionality. In the event of a trip, identify the cause of the leakage current before resetting the breaker; persistent tripping indicates a persistent fault that requires professional diagnosis.

Scalability & Long-Term Value

As part of Siemens' extensive range of SENTRON protection devices, the 5SV3612-6KK01 offers excellent compatibility with other Siemens industrial components and systems. This ensures seamless integration into existing or future electrical infrastructure. While the RCBO itself is a fixed-rated device, its ability to protect downstream circuits contributes to the overall longevity and reliability of the electrical system, reducing the likelihood of costly equipment failures. Its robust construction is designed for a long service life in demanding industrial environments, providing sustained protection and value.

Frequently Asked Questions (FAQs)

What is the primary function of the Siemens 5SV3612-6KK01 RCBO?

This device provides combined protection against overcurrents and residual currents. It safeguards electrical systems from overloads and short circuits. It also detects earth leakages, preventing electric shock hazards. It is designed for robust industrial applications.

Can this RCBO be used for both single-phase and three-phase applications?

The 5SV3612-6KK01 is a 2-pole device, suitable for single-phase circuits. It connects to line and neutral conductors. It is not designed for three-phase power distribution systems. For three-phase needs, multi-pole RCBOs or separate RCDs and MCBs are required.

What does the 300mA sensitivity rating signify?

A 300mA residual current rating indicates the sensitivity to earth leakage current. It trips when leakage exceeds this value. This level is typically for main incomer protection or supplementary protection. It offers a balance between preventing nuisance tripping and ensuring safety.

How do I reset the Siemens 5SV3612-6KK01 after it trips?

After a trip, first, identify and rectify the cause of the fault. Then, firmly push the switch lever upwards to reset the device. If it trips again immediately, there is a persistent fault. Do not force the lever; seek professional electrical assistance.

What is the breaking capacity of this RCBO?

The Siemens 5SV3612-6KK01 has a breaking capacity of 6kA. This is the maximum fault current it can safely interrupt. It is suitable for most standard industrial and commercial installations. Ensure it matches the prospective fault current at the installation point.

Is this RCBO suitable for outdoor use?

The IP20 protection class signifies it is protected against solid objects greater than 12.5mm. It is not protected against water ingress. It is intended for use within electrical enclosures or switchboards. Outdoor installations require higher IP-rated enclosures or specific outdoor-rated equipment.

What type of residual currents does the Type AC characteristic detect?

The Type AC characteristic is designed to detect sinusoidal alternating residual currents. These arise from direct or indirect contact with live parts. It is not designed for pulsating DC residual currents. For such applications, Type A or Type B RCDs are necessary.

How does the 2-pole design benefit installation?

A 2-pole design ensures both the line and neutral conductors are disconnected simultaneously. This provides complete isolation of the circuit. It simplifies wiring compared to using separate single-pole devices. It adheres to safety standards for neutral conductor switching.

Can the Siemens 5SV3612-6KK01 be integrated with smart home or IIoT systems?

This specific model, the 5SV3612-6KK01, is a conventional RCBO and does not inherently support direct digital communication. Integration with IIoT systems would typically require external monitoring modules or intelligent circuit breakers designed for smart grid applications.

What maintenance is required for this RCBO?

Regular testing with an RCD tester is crucial to verify its tripping function. Visually inspect terminals for signs of corrosion or overheating. Ensure connections are secure. Beyond periodic testing, no specific user maintenance is typically required for these robust devices.