Siemens 5SY6110-8CC Electromagnetic Equipment Protection Circuit Breaker 1P 10A

The Siemens 5SY6110-8CC is a single-pole, 10-ampere electromagnetic circuit breaker designed for robust equipment protection in industrial and commercial settings. It offers rapid fault disconnection, high breaking capacity, and reliable performance, crucial for safeguarding sensitive electrical systems. Key technical parameters include its 1P configuration, 10A rated current, and electromagnetic tripping mechanism, ensuring precise and swift response to overcurrent and short-circuit conditions.

Siemens 5SY6110-8CC: Product Specifications

| Parameter             | Specification                      |

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

| Product Type          | Miniature Circuit Breaker (MCB)    |

| Manufacturer          | Siemens                            |

| Series                | 5SY6                           |

| Poles                 | 1P (Single Pole)                   |

| Rated Current (I n )  | 10 A                             |

| Tripping Characteristic | C                                  |

| Rated Breaking Capacity (I c n ) | 6 kA                             |

| Rated Voltage (U n )  | 230/400 V AC                     |

| Frequency             | 50/60 Hz                           |

| Insulation Voltage (U i ) | 500 V AC                         |

| Protection Class      | IP20 (Device), IP40 (Enclosure)  |

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

| Mounting Type         | DIN Rail (35 mm)                 |

| Terminal Type         | Screw Terminal                     |

| Compliance Standards  | IEC/EN 60898-1                     |

Core Features & Market Positioning

The Siemens 5SY6110-8CC stands out in the competitive circuit breaker market due to its inherent reliability and precise tripping characteristics, essential for demanding industrial applications. Its C-curve tripping characteristic makes it ideal for circuits with moderate inrush currents, such as those found in motor control applications or lighting systems, offering enhanced protection without nuisance tripping. This specific model benefits from Siemens' long-standing reputation for quality and durability in electrical components, positioning it as a trusted solution for professionals prioritizing safety and operational continuity. The robust construction ensures longevity even in harsh industrial environments, differentiating it from lighter-duty alternatives.

Key Application Scenarios

This Siemens circuit breaker is extensively utilized in power distribution boards for commercial buildings, industrial facilities, and manufacturing plants. Its single-pole design and 10A rating are perfectly suited for protecting individual circuits within control panels, such as those powering machinery, pumps, HVAC systems, or lighting circuits where precise overcurrent and short-circuit protection is paramount. It finds common application in protecting downstream sensitive electronic equipment from electrical disturbances, ensuring uninterrupted operation and preventing costly downtime. The 6 kA breaking capacity also provides adequate protection against severe short-circuit faults in many distribution systems.

Practical System Integration Guidance

Integrating the Siemens 5SY6110-8CC into existing electrical systems is straightforward due to its standard DIN rail mounting capability and accessible screw terminals. Installers must ensure the breaker is correctly seated on the 35mm DIN rail and that all connections are securely tightened to prevent overheating and ensure optimal conductivity. For wiring, the line conductor should be connected to the upper terminal, and the load conductor to the lower terminal. Adherence to local electrical codes and standards, including proper conductor sizing for the 10A rating, is crucial for safe and compliant installation. Always disconnect power before performing any wiring or maintenance.

Operation and Risk Mitigation

The 5SY6110-8CC operates by employing an electromagnetic trip unit that responds instantly to sudden, high-magnitude current surges characteristic of short circuits. For sustained overloads, a thermal tripping mechanism activates. Proper operation relies on selecting the correct breaker for the protected circuit's load and prospective fault current. Risk mitigation involves regular visual inspection for any signs of damage or overheating, ensuring the ambient temperature remains within specified limits, and avoiding overloading the circuit beyond its 10A capacity. Incorrect installation or using the breaker outside its rated parameters can lead to failure, posing fire or electrical shock hazards.

Scalability & Long-Term Value

The Siemens 5SY6110-8CC offers significant long-term value through its compatibility with the broader Siemens industrial control and automation ecosystem. While this is a single-pole device, its integration into standard distribution panels allows for easy expansion by adding more units for additional circuits. Its robust design ensures a long operational lifespan, reducing the need for frequent replacements. For facilities looking to embrace Industry 4.0, the 5SY6 series circuit breakers can be part of a comprehensive protection strategy, allowing for remote monitoring and diagnostics when integrated with compatible smart metering and control systems, thus enhancing overall system intelligence and operational efficiency.

Frequently Asked Questions (FAQs)

What is the tripping characteristic of the Siemens 5SY6110-8CC?

The Siemens 5SY6110-8CC features a C-type tripping characteristic. This means it is designed to trip between 5 to 10 times its rated current.

This characteristic makes it suitable for circuits with moderate inrush currents, like those from motors or transformers. It helps prevent nuisance tripping during normal operation.

It offers a good balance between protection against overloads and short circuits for many common industrial loads.

Can the Siemens 5SY6110-8CC be used for DC applications?

No, the Siemens 5SY6110-8CC is designed and rated for AC (Alternating Current) applications only. Its specified voltage ratings are for AC systems.

Using this breaker on DC circuits can lead to improper operation, failure to trip, and potential safety hazards. DC arc quenching is different from AC arc quenching.

Always refer to the product datasheet and ensure the breaker is explicitly rated for the intended DC voltage and current if a DC application is considered.

What is the breaking capacity of the Siemens 5SY6110-8CC?

The Siemens 5SY6110-8CC has a rated breaking capacity of 6 kA (kiloamperes). This is the maximum fault current it can interrupt safely.

This breaking capacity is suitable for many standard residential and light commercial power distribution systems. It ensures the breaker can safely extinguish the arc during a short circuit.

For applications with higher potential fault currents, a higher breaking capacity breaker would be required to ensure adequate protection and safety.

How do I install the Siemens 5SY6110-8CC circuit breaker?

Installation involves snapping the breaker onto a standard 35mm DIN rail in a suitable enclosure. Ensure the rail is securely mounted.

Connect the incoming live wire to the upper terminal and the outgoing load wire to the lower terminal. Ensure all connections are tight to prevent overheating.

Always de-energize the circuit before installation and verify zero voltage. Follow local electrical codes for proper installation practices.

What does "1P" mean for this Siemens circuit breaker?

"1P" stands for single pole. This means the circuit breaker has one pole and is designed to interrupt a single conductor (typically the live wire).

Single-pole breakers are used for circuits requiring protection on only one conductor, common for 120V or 230V branch circuits. They do not switch or protect the neutral conductor.

It is important to ensure that the circuit being protected requires single-pole switching and protection according to electrical codes and application requirements.

What is the rated current of the Siemens 5SY6110-8CC?

The rated current for the Siemens 5SY6110-8CC is 10 Amperes (A). This is the maximum continuous current the breaker can carry without tripping.

It is crucial to match the breaker's rated current to the expected continuous load of the circuit it protects. Overloading can lead to premature tripping or equipment damage.

Selecting a breaker with a rated current that is too high for the load can result in the breaker failing to protect against overcurrents.

Where is the Siemens 5SY6110-8CC typically used?

This circuit breaker is commonly found in electrical distribution boards and control panels for residential, commercial, and light industrial applications.

It is ideal for protecting individual circuits that power appliances, lighting, small motors, or sensitive electronic equipment where precise overcurrent protection is needed.

Its single-pole design is suitable for standard branch circuits in many building and facility electrical systems.

What safety precautions should be taken when working with this breaker?

Always ensure the power supply to the circuit is completely disconnected and verified with a voltage tester before attempting any installation or maintenance.

Wear appropriate personal protective equipment (PPE), such as insulated gloves and eye protection, when working with electrical panels.

If unsure about the installation or troubleshooting process, consult a qualified electrician to avoid electrical hazards.

What happens if the Siemens 5SY6110-8CC trips?

If the circuit breaker trips, it indicates that an overcurrent condition (either overload or short circuit) has occurred in the protected circuit.

Investigate the cause of the trip by checking for overloaded appliances, faulty wiring, or short circuits. Once the fault is cleared, the breaker can be reset by flipping the switch.

If the breaker trips repeatedly, it signifies an ongoing issue that requires professional diagnosis and repair to prevent damage or hazards.

What are the environmental operating conditions for this breaker?

The Siemens 5SY6110-8CC is designed to operate within an ambient temperature range of -25°C to +45°C.

It should be installed in a dry environment, and the device itself has an IP20 protection rating, meaning it is protected against solid objects larger than 12.5mm but not against water.

Ensuring the breaker is installed in a suitable enclosure (e.g., IP40 rated) will provide further protection against dust and accidental contact.