Siemens 5SY6310-7CC Miniature Air Circuit Breaker 3P 10A

The Siemens 5SY6310-7CC Miniature Air Circuit Breaker (MCB) is a robust 3-pole, 10A device engineered for reliable overcurrent protection in diverse industrial and commercial electrical systems. Its primary advantages lie in its high breaking capacity, superior tripping characteristics, and extensive compliance with international standards, ensuring operational safety and system integrity. This MCB is designed for applications demanding dependable circuit interruption and fault isolation, offering a critical layer of protection against short circuits and overloads.

Siemens 5SY6310-7CC: Product Specifications

| Parameter                 | Specification                               |

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

| Product Type              | Miniature Circuit Breaker (MCB)             |

| Manufacturer              | Siemens                                     |

| Series                    | 5SY6                                        |

| Number of Poles           | 3 (Three-pole)                              |

| Rated Current (In)        | 10 A                                        |

| Rated Voltage (Un)        | 400V AC                                     |

| Breaking Capacity (Icn)   | 6 kA                                        |

| Tripping Characteristic   | Type C                                      |

| Frequency                 | 50/60 Hz                                    |

| Mounting Type             | DIN Rail (35mm)                             |

| Terminal Type             | Screw Terminal                              |

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

| Protection Class          | IP20                                        |

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

Core Features & Market Positioning

The Siemens 5SY6310-7CC stands out in the market due to its consistent performance and adherence to stringent quality benchmarks, a hallmark of Siemens' industrial offerings. Its Type C tripping curve is particularly advantageous for applications with moderate inrush currents, such as inductive loads, providing effective protection without nuisance tripping. With a breaking capacity of 6 kA, it is well-suited for standard distribution circuits, offering a reliable safety solution where higher fault currents are not anticipated. This makes it a cost-effective yet dependable choice for many general industrial applications, positioning it as a workhorse MCB within Siemens' comprehensive protection portfolio.

Key Application Scenarios

This 3-pole, 10A MCB is ideally suited for protecting main and branch circuits in industrial control panels, distribution boards, and machinery. Its three-pole design ensures simultaneous disconnection of all phases, critical for preventing phase imbalance and ensuring motor protection in three-phase systems. Common applications include safeguarding lighting circuits, socket outlets, and power supplies for moderate loads in manufacturing facilities, commercial buildings, and power distribution networks. The 10A rating makes it precise for circuits with specific current demands, preventing overloads in areas where equipment draws less power.

Practical System Integration Guidance

Installing the Siemens 5SY6310-7CC is straightforward, designed for quick mounting onto standard 35mm DIN rails. The robust screw terminals ensure secure electrical connections, accommodating appropriate cable sizes for the 10A rating. Proper wiring involves connecting the incoming power supply to the line-side terminals and the outgoing load to the load-side terminals for each of the three poles. It is crucial to adhere to local electrical codes and ensure that the MCB's rating is appropriately matched to the circuit's expected load and fault current levels to guarantee safe and effective operation.

Operation and Risk Mitigation

The 5SY6310-7CC operates automatically by interrupting the circuit when the current exceeds a safe limit, either due to an overload or a short circuit. Its thermal-tripping mechanism handles overloads, while the magnetic-tripping mechanism provides rapid response to short circuits. To mitigate risks, users must ensure correct installation, proper wire termination, and that the MCB's specifications (10A, 6kA, Type C) align with the protected circuit's requirements. Regular visual inspection for damage and periodic testing of its tripping function, where feasible and per local regulations, are recommended practices for long-term operational safety. Avoid manual resetting after a short circuit trip without investigating the cause, as this can lead to further damage or hazards.

Scalability & Long-Term Value

While the Siemens 5SY6310-7CC is a standalone protective device, its long-term value is realized through its compatibility with the broader Siemens industrial automation ecosystem. It can be integrated into larger control panels and distribution systems that may include other Siemens components, ensuring a cohesive electrical infrastructure. For facilities looking to enhance their systems with smart capabilities, the 5SY series can form the basis of a protected network that, with appropriate gateway devices, can be monitored and managed within Industrial Internet of Things (IIoT) platforms, offering insights into energy consumption and operational status.

Frequently Asked Questions (FAQs)

What is the breaking capacity of the Siemens 5SY6310-7CC?

The Siemens 5SY6310-7CC has a breaking capacity of 6 kA.

This rating indicates the maximum fault current it can safely interrupt.

It is suitable for standard distribution circuits and ensures protection against short circuits.

Can the Siemens 5SY6310-7CC be used for DC applications?

This MCB is designed and rated for AC applications only.

Using it in DC circuits can lead to unsafe operation and failure.

Always ensure the breaker's voltage rating matches the system's type (AC or DC).

What does Type C tripping characteristic mean for this MCB?

Type C indicates it trips between 5 to 10 times the rated current.

This characteristic is ideal for loads with moderate inrush currents.

It provides protection against short circuits while minimizing nuisance tripping from inductive loads.

How do I install the Siemens 5SY6310-7CC on a DIN rail?

The MCB easily snaps onto a standard 35mm top-hat DIN rail.

Ensure the rail is securely mounted and accessible.

The device's rear clips engage with the rail for a stable connection.

What is the operating temperature range for this circuit breaker?

The Siemens 5SY6310-7CC operates within an ambient temperature range of -25°C to +45°C.

Maintaining operation within this range ensures reliable performance.

Extreme temperatures can affect tripping characteristics and device lifespan.

What standards does the Siemens 5SY6310-7CC comply with?

It complies with IEC/EN 60898-1 and IEC/EN 60947-2 standards.

These are key international standards for circuit protection devices.

Compliance ensures safety, performance, and interchangeability in global markets.

What is the purpose of a three-pole MCB?

A three-pole MCB protects all three phases simultaneously.

This is crucial for three-phase motors to prevent phase imbalance.

It ensures that a fault in one phase leads to the disconnection of all phases.

How do I wire the Siemens 5SY6310-7CC?

Connect incoming power to the line terminals and outgoing load to the load terminals.

Use appropriate wire gauges for the 10A rating.

Ensure all connections are tight and secure to prevent overheating.

What is the rated current of this specific model?

The rated current (In) for the Siemens 5SY6310-7CC is 10 Amperes.

This rating defines the maximum continuous current the breaker can handle.

It's essential to match this to the protected circuit's load requirements.

Where is this type of MCB typically used in industrial settings?

It's commonly used in control panels and distribution boards.

Applications include protecting lighting, socket outlets, and machinery power circuits.

Its suitability lies in general power distribution where moderate fault currents are expected.