Siemens 3VA1110-6EE32-0AA0 High Breaking Capacity Molded Case Circuit Breaker 100A 3P 70kA

The Siemens 3VA1110-6EE32-0AA0 is a high-performance molded case circuit breaker engineered for robust protection in demanding industrial environments. This 100A, 3-pole device boasts an impressive breaking capacity of 70kA, ensuring superior safety and operational reliability. Its compact design and advanced tripping technology make it an ideal choice for safeguarding electrical installations against overcurrents and short circuits, offering a compelling blend of efficiency and protection. Key advantages include its high breaking capacity, reliable thermal-magnetic trip unit, and flexible accessory options.

Product Specifications

| Feature                        | Specification                                        |

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

| Product Type                   | Molded Case Circuit Breaker (MCCB)                   |

| Siemens Series                 | 3VA                                                  |

| Model Number                   | 3VA1110-6EE32-0AA0                                   |

| Rated Current (In)             | 100 A                                                |

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

| Breaking Capacity (Icu)        | 70 kA at 415V AC                                     |

| Tripping Unit Type             | Thermal-magnetic                                     |

| Frame Size                     | 160                                                  |

| Voltage Rating                 | Up to 690V AC                                        |

| Frequency                      | 50/60 Hz                                             |

| Mounting                       | DIN rail or base mounting                            |

| Terminal Type                  | Screw terminals                                      |

| Compliance                     | IEC 60947-2                                          |

| Protection Class               | IP20 (enclosure), IP40 (front face with accessory) |

Core Features & Market Positioning

The Siemens 3VA1110-6EE32-0AA0 stands out in the competitive MCCB market due to its high breaking capacity of 70kA, a critical feature for applications where significant fault currents are anticipated. This breaker utilizes a reliable thermal-magnetic trip unit, offering dependable overcurrent and short-circuit protection essential for maintaining operational continuity and preventing equipment damage. Its positioning as a robust and versatile solution for power distribution and motor protection within industrial settings underscores Siemens' commitment to safety and performance. The 3VA series is recognized for its modular design, allowing for easy integration of accessories and simplifying maintenance.

Key Application Scenarios

This Siemens 3VA1110-6EE32-0AA0 circuit breaker is predominantly deployed in industrial power distribution systems. It serves as a primary protective device for main distribution boards and sub-distribution boards, safeguarding electrical networks from overloads and short circuits. Its high breaking capacity makes it suitable for applications with higher fault current levels, such as those found in manufacturing plants, processing facilities, and data centers. Furthermore, it is utilized for the protection of individual equipment and motor circuits, ensuring the reliable operation of machinery.

Practical System Integration Guidance

Integrating the Siemens 3VA1110-6EE32-0AA0 into existing electrical systems is streamlined due to its standard mounting options and terminal configurations. The breaker can be mounted on a standard DIN rail or via base mounting for secure installation. Wiring involves connecting the incoming power supply to the line-side terminals and the outgoing load to the load-side terminals, ensuring correct phase sequence for 3-pole operation. Although the thermal-magnetic trip unit is factory-set, it can be adjusted within its specified range for specific load requirements, enhancing system flexibility.

Operation and Risk Mitigation

Safe operation of the Siemens 3VA1110-6EE32-0AA0 involves ensuring the breaker is correctly sized for the protected circuit and that all connections are secure. Regular visual inspections for signs of wear or damage, along with periodic functional testing, are crucial for risk mitigation. The breaker's clearly marked ON/OFF positions and accessible trip lever facilitate manual operation and emergency shutdown. In the event of a trip, identifying the cause of the overload or short circuit is paramount before resetting the breaker.

Scalability & Long-Term Value

The 3VA series, including the 3VA1110-6EE32-0AA0, offers significant long-term value through its scalability and compatibility with Siemens' broader industrial automation portfolio. While this specific model features a fixed thermal-magnetic trip unit, other variants in the 3VA range support electronic trip units with communication capabilities, allowing for integration into modern IIoT and digital monitoring systems. This forward-looking design ensures that installations can evolve with technological advancements, preserving investment and enhancing operational intelligence over the product's lifecycle.

Frequently Asked Questions (FAQs)

What is the breaking capacity of the Siemens 3VA1110-6EE32-0AA0?

The Siemens 3VA1110-6EE32-0AA0 offers a substantial breaking capacity of 70kA at 415V AC. This rating is crucial for handling high fault currents. It ensures robust protection against severe electrical disturbances.

This high rating is essential for industrial environments where fault levels can be significant. It provides a high degree of safety and reliability for the electrical system. The 70kA capacity makes it suitable for main incomer applications.

Such a breaking capacity is vital for preventing catastrophic damage to electrical infrastructure. It ensures that the circuit breaker can safely interrupt fault currents without failing. This protects downstream equipment and personnel.

What type of trip unit does the Siemens 3VA1110-6EE32-0AA0 use?

This circuit breaker utilizes a thermal-magnetic trip unit for protection. The thermal element responds to prolonged overcurrents. The magnetic element reacts instantaneously to short circuits.

This dual-action mechanism provides reliable protection against various fault conditions. It is a well-established and robust technology for circuit protection. It is often chosen for its simplicity and dependability.

The thermal-magnetic unit is typically factory-set for specific current ratings. It offers a balance of performance and cost-effectiveness for many industrial applications. Adjustments are possible within the specified limits.

Can the Siemens 3VA1110-6EE32-0AA0 be used for motor protection?

Yes, the Siemens 3VA1110-6EE32-0AA0 can be used for motor protection. Its thermal-magnetic trip unit provides overload protection. The magnetic element offers short-circuit protection for motor circuits.

It is important to select the correct rating and settings for the specific motor application. Proper sizing ensures adequate protection against running overloads and catastrophic short circuits. Consult motor protection guidelines.

While effective, for highly specialized or advanced motor control needs, electronic trip units might offer more sophisticated features. However, this breaker provides robust protection for many standard motor applications.

What are the mounting options for the Siemens 3VA1110-6EE32-0AA0?

This circuit breaker supports both DIN rail mounting and base mounting. DIN rail mounting is common for control panels and distribution boards. Base mounting offers a secure, fixed installation.

The flexibility in mounting allows for easy integration into various panel designs. This adaptability simplifies installation and retrofitting processes. It ensures secure mechanical fixing.

Ensure the chosen mounting method provides adequate support and stability for the breaker's weight and operational stresses. Proper installation is key to long-term reliability.

What is the main advantage of a 70kA breaking capacity?

A 70kA breaking capacity indicates the maximum fault current the breaker can safely interrupt. This high rating is crucial in systems with high potential fault levels. It provides superior protection against severe short circuits.

This level of protection is essential for main incomer applications or areas with a high risk of large fault currents. It prevents catastrophic equipment damage and ensures personnel safety. It exceeds the requirements of many standard applications.

Breakers with higher breaking capacities offer greater safety margins. They are designed to withstand and interrupt severe electrical disturbances without failure. This enhances the overall reliability of the power distribution system.

Is the Siemens 3VA1110-6EE32-0AA0 suitable for DC applications?

The Siemens 3VA1110-6EE32-0AA0 is designed and rated for AC applications. It is not intended for use in DC systems. Using it in DC circuits can lead to dangerous arcing and failure.

DC circuit interruption is significantly different from AC due to the absence of natural zero crossings. Special circuit breakers designed for DC are required for such applications. Always refer to the product documentation for application suitability.

Ensure correct application by adhering to the specified voltage and current types (AC or DC). Using the wrong type of breaker can compromise safety and lead to system failure.

What accessories are available for the Siemens 3VA1110-6EE32-0AA0?

While this specific model uses a thermal-magnetic trip unit, the 3VA series generally supports various accessories. These can include auxiliary and signaling contacts. Shunt releases and under-voltage releases are also common.

These accessories enhance the functionality of the circuit breaker. Auxiliary contacts provide status feedback. Releases enable remote tripping or protection against voltage fluctuations.

The availability of accessories for the 3VA series allows for customization. It enables integration with control systems and provides advanced protection features tailored to specific needs.

How do I reset the Siemens 3VA1110-6EE32-0AA0 after a trip?

After a trip, first identify and rectify the cause of the fault (overload or short circuit). Then, manually push the trip lever fully in the direction of the trip indication. Finally, move the lever to the ON position to reset and restore power.

Ensure the fault condition has been cleared before attempting a reset. Repeated tripping without addressing the root cause can indicate a persistent problem or a faulty breaker.

If the breaker trips again immediately after resetting, it indicates an unresolved issue in the protected circuit. Further investigation is required to ensure safe operation and prevent damage.

What is the significance of "100A 3P 70kA"?

"100A" denotes the rated current the breaker can continuously carry. "3P" signifies it is a 3-pole breaker for three-phase systems. "70kA" is the short-circuit breaking capacity.

This combination specifies the breaker's fundamental protective capabilities. It allows engineers to select the appropriate device for a given electrical load and fault level. It ensures adequate protection and safety.

Understanding these parameters is vital for correct application. They dictate where the breaker can be safely and effectively installed within an electrical distribution system.

What IEC standard does the Siemens 3VA1110-6EE32-0AA0 comply with?

The Siemens 3VA1110-6EE32-0AA0 complies with the IEC 60947-2 standard. This standard specifies the requirements for low-voltage switchgear and controlgear. It covers circuit breakers.

Compliance with IEC 60947-2 ensures that the breaker meets rigorous international safety and performance criteria. It guarantees a certain level of reliability and interoperability. This is a critical benchmark for industrial electrical components.

This certification provides confidence in the product's quality and its ability to perform as expected under specified conditions. It is essential for global market acceptance and system integrity.