Siemens 5SN6213-8CN High Breaking Capacity Miniature Circuit Breaker 2P 13A

The Siemens 5SN6213-8CN is a robust 2-pole, 13A Miniature Circuit Breaker (MCB) engineered for superior protection against overcurrents and short circuits in industrial and commercial electrical installations. This device boasts a high breaking capacity of 6 kA, ensuring reliable performance and safety even under demanding fault conditions. Its precise 13A current rating is ideal for protecting circuits with moderate power requirements, preventing equipment damage and mitigating fire hazards. Designed for DIN rail mounting, the 5SN6213-8CN offers straightforward integration into standard electrical panels, facilitating efficient system build-outs and maintenance.

Product Specifications

| Specification              | Value                      |

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

| Product Type               | Miniature Circuit Breaker  |

| Series                     | 5SN6                       |

| Number of Poles            | 2P                         |

| Rated Current (In)         | 13A                        |

| Breaking Capacity (Icn)    | 6 kA                       |

| Tripping Characteristic    | C                          |

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

| Frequency                  | 50/60 Hz                   |

| Mounting Type              | DIN Rail                   |

| Protection Class           | IP20                       |

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

| Compliance                 | IEC/EN 60898-1, IEC/EN 60947-2 |

Core Features & Market Positioning

The Siemens 5SN6213-8CN stands out in the market due to its high breaking capacity (6 kA) within a compact 2-pole design, offering significant protection for its size and cost. This MCB employs a reliable C-type tripping characteristic, which is well-suited for inductive loads commonly found in industrial settings, providing adequate delay to handle inrush currents while still protecting against short circuits. Its robust construction ensures durability and a long operational lifespan, positioning it as a dependable choice for electricians and system integrators seeking robust protection solutions. The Siemens brand itself carries a strong reputation for quality and innovation in electrical engineering, further bolstering the market confidence in this product.

Key Application Scenarios

This Siemens 5SN6213-8CN MCB is extensively utilized in the protection of distribution circuits within commercial buildings, industrial facilities, and residential complexes. Its 13A rating makes it particularly suitable for safeguarding lighting circuits, socket outlets, and control circuits that draw moderate amounts of power. The 6 kA breaking capacity is essential for applications where fault currents can be significant, such as in areas with higher power distribution densities or near machinery. It is a common component in main distribution boards, sub-distribution boards, and machine control panels, ensuring personnel safety and preventing damage to sensitive electrical equipment.

Practical System Integration Guidance

Integrating the Siemens 5SN6213-8CN into an electrical system is straightforward due to its standard 2-pole design and DIN rail mounting compatibility. Ensure the circuit to be protected does not exceed the breaker's 13A rating and that the system voltage aligns with the 230/400V AC specification. Connect the line conductor to the upper terminal and the load conductor to the lower terminal on each pole. For enhanced safety, it is recommended to connect the neutral conductor to a separate neutral bar within the distribution board. Always verify that all connections are secure and tightened to the manufacturer's specified torque to prevent overheating and ensure optimal performance.

Operation and Risk Mitigation

The Siemens 5SN6213-8CN operates by automatically interrupting the electrical circuit when an overcurrent (overload or short circuit) is detected, thereby preventing damage to connected equipment and mitigating the risk of electrical fires. The C-type tripping characteristic provides a time delay to tolerate temporary current surges from motor startups, while still responding swiftly to dangerous short circuits. In the event of a tripping, visual indication is provided on the toggle. To reset, simply flip the toggle back to the 'ON' position after the fault condition has been cleared. Avoid repeatedly resetting a tripped breaker without identifying and rectifying the underlying cause of the fault to prevent potential damage to the breaker itself or the connected load.

Scalability & Long-Term Value

The 5SN6213-8CN MCB, as part of Siemens' extensive electrical product portfolio, offers significant long-term value through compatibility and potential for system expansion. It adheres to widely adopted IEC and EN standards, ensuring interoperability with other compliant devices and systems. While this specific model is a standalone protection device, its integration into larger Siemens industrial control and automation platforms is seamless, allowing for future upgrades or the implementation of smart monitoring solutions. This ensures that electrical infrastructure built with Siemens components can evolve to meet increasing demands or incorporate advanced digital capabilities without requiring a complete overhaul of existing protection devices.

Frequently Asked Questions (FAQs)

Q1: What is the breaking capacity of the Siemens 5SN6213-8CN?

The Siemens 5SN6213-8CN offers a robust breaking capacity of 6 kA. This specification is crucial for safely interrupting fault currents. It ensures the breaker can withstand and safely extinguish high levels of electrical energy during a short circuit.

This high rating provides essential protection for circuits where significant fault currents are anticipated. It helps prevent damage to the circuit breaker and connected equipment. The 6 kA capacity is a key safety feature for industrial and commercial installations.

The 6 kA breaking capacity means the device can handle up to 6,000 amps of fault current. This is a critical parameter for ensuring overall electrical system safety and reliability. It complies with international standards for circuit protection.

Q2: Can the Siemens 5SN6213-8CN be used for motor protection?

Yes, the Siemens 5SN6213-8CN can be used for protecting circuits that supply motors. Its C-type tripping characteristic is suitable for inductive loads. This characteristic allows for higher inrush currents during motor startup.

The 13A rating needs to be carefully matched to the motor's full load current and starting characteristics. Overcurrent protection for motors often requires specific considerations beyond standard circuit breakers. It's advisable to consult motor protection guidelines.

While suitable for many motor applications, for critical or larger motors, dedicated motor protection relays or circuit breakers with adjustable thermal and magnetic trips may offer superior protection. Always verify compliance with specific motor application requirements.

Q3: What does the 'C' in the tripping characteristic 'C' mean for the 5SN6213-8CN?

The 'C' in the tripping characteristic signifies its behavior for overcurrents. It indicates a moderate delay in tripping for inrush currents. This is ideal for inductive loads like motors and transformers.

This characteristic allows for temporary surges in current when devices like motors start up. It prevents nuisance tripping during normal operation. Short circuits will still cause immediate tripping.

'C' type breakers are designed to handle inrush currents typically 5 to 10 times the rated current. This makes them a versatile choice for many industrial and commercial applications. They offer a balance between overload and short-circuit protection.

Q4: How do I install the Siemens 5SN6213-8CN MCB?

Installation involves snapping the 2-pole breaker onto a standard 35mm DIN rail. Ensure the circuit is de-energized before beginning installation. Connect the line conductor to the upper terminal of one pole and the load conductor to the lower terminal of the same pole.

For the second pole, repeat the connection process for the other conductors as per your system's wiring diagram. Ensure all connections are secure and tightened to the recommended torque specifications. Proper torque is crucial for reliable contact and preventing overheating.

Follow all local electrical codes and regulations during installation. If you are not a qualified electrician, it is highly recommended to have a professional perform the installation. Ensure correct polarity and wiring practices are observed.

Q5: What is the voltage rating of the Siemens 5SN6213-8CN?

The Siemens 5SN6213-8CN is rated for a voltage of 230/400V AC. This is a standard voltage range for many electrical distribution systems worldwide. It is suitable for both single-phase and three-phase applications up to 400V.

Always ensure that the voltage of the electrical system where the MCB is installed matches its rated voltage. Using a breaker in a system with a higher voltage can lead to catastrophic failure and safety hazards. Verify the system voltage before installation.

This rating specifies the maximum voltage the breaker can safely interrupt. It is designed to operate reliably within these voltage limits. The dual rating (230/400V) indicates its versatility in different network configurations.

Q6: How do I reset the Siemens 5SN6213-8CN after it trips?

After the circuit breaker trips due to an overcurrent or short circuit, you will see the toggle in the 'OFF' position. First, identify and rectify the cause of the tripping. Ensure the fault condition has been resolved.

To reset, firmly push the toggle to the 'ON' position. If the breaker trips again immediately, it indicates the fault condition persists and requires further investigation. Do not force the breaker if it does not reset.

Resetting should only be done after the fault has been cleared. Repeatedly resetting a breaker without addressing the fault can damage the device and create a fire hazard. Always consult an electrician if faults reoccur.

Q7: Is the Siemens 5SN6213-8CN compatible with other Siemens electrical components?

Yes, the Siemens 5SN6213-8CN is designed for compatibility within the broader Siemens electrical ecosystem. It adheres to IEC/EN standards, ensuring interoperability with other compliant devices. It can be easily integrated into Siemens distribution boards and control panels.

Its standard DIN rail mounting and terminal connections facilitate seamless integration with other Siemens circuit breakers, RCDs, and busbar systems. This allows for a cohesive and reliable electrical infrastructure. Compatibility ensures optimal system performance.

When expanding systems or integrating new components, always refer to Siemens' product documentation and system guides. This ensures proper selection and configuration for maximum efficiency and safety. Siemens offers a wide range of accessories for enhanced integration.

Q8: What is the typical operating temperature range for this MCB?

The Siemens 5SN6213-8CN is designed to operate reliably within an ambient temperature range of -25°C to +45°C. This wide range ensures functionality in various environmental conditions encountered in industrial settings. It covers both cold and moderately hot operational climates.

Operating outside this specified temperature range can affect the breaker's performance and lifespan. Extreme heat can lead to premature aging of components, while extreme cold can impact mechanical operation. Ensure adequate ventilation around the installed breaker.

Adhering to the operating temperature guidelines is crucial for maintaining the safety and reliability of the electrical installation. Proper ventilation and environmental control within electrical enclosures are therefore recommended. Consider derating if operating near the upper limits.

Q9: What does the '2P' designation mean for this circuit breaker?

The '2P' designation indicates that the Siemens 5SN6213-8CN is a double-pole circuit breaker. This means it protects and switches two separate electrical conductors simultaneously. It is commonly used in systems where both live conductors need to be disconnected for safety.

This type of breaker is essential for certain applications, such as controlling single-phase circuits where switching off only one pole is insufficient for isolation. It ensures complete disconnection from the power source for enhanced safety. It is often used in 230V single-phase circuits.

Utilizing a 2-pole breaker ensures that both live conductors of a circuit are interrupted simultaneously. This provides a higher level of safety compared to single-pole breakers, especially in preventing neutral conductor issues or accidental energization. It is a key safety feature.

Q10: What kind of protection does the Siemens 5SN6213-8CN offer?

The Siemens 5SN6213-8CN provides comprehensive protection against overcurrents. This includes protection against both overload conditions and short circuits. It acts as a vital safety device in any electrical installation.

Overload protection prevents damage from sustained current levels that are slightly above the rated 13A. Short-circuit protection swiftly interrupts very high currents caused by faults, preventing fires and equipment damage. Its high breaking capacity is key here.

The MCB safeguards the wiring and connected electrical equipment from damage and reduces the risk of electrical fires. Its reliable operation ensures the integrity of the electrical system. It is a fundamental component for electrical safety.