Siemens 3VA1110-6ED42-0AA0 3VA11 Series Molded Case Air Circuit Breaker 100A 4P 70kA

The Siemens 3VA1110-6ED42-0AA0, a 4-pole, 100A molded case air circuit breaker from the 3VA11 series, offers robust protection with a 70kA breaking capacity, making it a cornerstone for reliable electrical distribution systems. This breaker excels in applications demanding high performance and safety, featuring advanced tripping technology for precise fault detection and isolation. Its compact design and integrated functionalities streamline installation and maintenance, positioning it as a leading choice for industrial and commercial power management.

Product Specifications

| Specification               | Value                                  |

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

| Product Type                | Molded Case Air Circuit Breaker        |

| Series                      | 3VA11                                  |

| Rated Current (In)          | 100A                                   |

| Number of Poles             | 4P                                     |

| Breaking Capacity (Icu/Ics) | 70kA                                   |

| Rated Voltage (Ue)          | 400/415V AC                            |

| Tripping Unit               | Electronic                             |

| Release Type                | LI (Long-Time and Instantaneous)       |

| Overload Protection         | Adjustable                             |

| Short-Circuit Protection    | Adjustable                             |

| Mechanical Endurance        | 20,000 switching cycles                |

| Terminal Type               | Box terminals                          |

| Mounting                    | Fixed                                  |

| Standards                   | IEC 60947-2                            |

| Dimensions (H x W x D)      | 161mm x 104.5mm x 70mm (approx.)       |

Core Features & Market Positioning

The Siemens 3VA1110-6ED42-0AA0 distinguishes itself through its advanced electronic trip unit, providing superior selectivity and coordinated protection against overloads and short circuits. This intelligent tripping capability minimizes unnecessary disconnections, enhancing operational continuity and reducing downtime in critical industrial environments. Compared to thermal-magnetic breakers, the 3VA11 series offers more precise and adjustable settings for both long-time (LI) and instantaneous (I) protection, allowing for fine-tuning to specific system requirements and optimal protection coordination. Its market positioning is firmly established as a reliable, high-performance solution for demanding power distribution, offering a compelling balance of advanced technology, user-friendliness, and robust construction. The breaker’s solid-state technology ensures consistent performance over its operational lifespan, a key differentiator in the competitive circuit breaker market.

Key Application Scenarios

This 4-pole, 100A circuit breaker is ideally suited for main distribution boards in commercial buildings, industrial facilities, and data centers, providing essential protection for outgoing feeders. Its 70kA breaking capacity makes it suitable for systems with high fault current potential, such as those near transformers or generators. Specific applications include safeguarding motor control centers, protecting critical equipment like HVAC systems, and serving as a primary protection device in manufacturing plants where reliable power is paramount. The 3VA1110-6ED42-0AA0 is also a robust choice for renewable energy installations, ensuring stable grid connection and protection against fault conditions.

Practical System Integration Guidance

Integrating the Siemens 3VA1110-6ED42-0AA0 into existing electrical systems is facilitated by its standard mounting dimensions and accessible terminal connections. For fixed installations, ensure secure mechanical fastening to the mounting panel, adhering to torque specifications for the box terminals to prevent overheating and ensure reliable current transfer. The breaker is designed for direct connection to busbars or cable lugs, with appropriate sizing of conductors to match the 100A rating and the anticipated fault currents. When configuring the electronic trip unit, it is crucial to set the overload (Ir) and short-circuit (Im) protection parameters according to the protected circuit's load characteristics and the upstream protective device's settings to achieve optimal selectivity and prevent nuisance tripping. Consult the device's manual for specific parameter ranges and recommended settings for various applications.

Operation and Risk Mitigation

Operating the Siemens 3VA1110-6ED42-0AA0 involves familiarization with its manual operating mechanism (lever) for ON/OFF switching and tripping. The breaker is equipped with a clearly visible trip indication. To reset a tripped breaker, the operating lever must be moved to the "OFF" position before it can be reset to the "ON" position. Risk mitigation is inherent in its design; the electronic trip unit provides overcurrent and short-circuit protection, significantly reducing the risk of conductor damage, fire, and equipment failure. However, proper installation, adherence to safety protocols during maintenance (e.g., lockout/tagout procedures), and regular inspection of connections are vital to prevent hazards. Familiarizing personnel with the breaker's trip characteristics and the implications of fault conditions is a key aspect of operational safety.

Scalability & Long-Term Value

The Siemens 3VA1110-6ED42-0AA0 offers excellent long-term value due to its robust construction and compatibility with Siemens' broader industrial control and automation portfolio. While the 3VA11 series is a fixed version, the 3VA platform itself provides options for expandability and digital integration in higher-tier models or through accessory modules. For systems requiring future capacity increases, planning for modular switchboard designs that allow for the addition or upgrading of breakers is advisable. Integration with modern digital solutions can be achieved through optional communication modules, enabling remote monitoring, diagnostics, and data logging, aligning with Industry 4.0 initiatives and enhancing predictive maintenance strategies. This forward-looking capability ensures the breaker remains a valuable component in evolving smart grid and IIoT infrastructures.

Frequently Asked Questions (FAQs)

What is the breaking capacity of the Siemens 3VA1110-6ED42-0AA0?

The Siemens 3VA1110-6ED42-0AA0 offers a substantial breaking capacity of 70kA. This high rating ensures it can safely interrupt severe short-circuit currents. It is crucial for protecting electrical equipment and personnel.

What applications is this 100A 4-pole breaker best suited for?

This breaker is ideal for main distribution panels in commercial and industrial settings. It also serves well in data centers and manufacturing plants. Its 70kA rating makes it suitable for areas with high fault current potential.

How do I adjust the overload and short-circuit settings on the 3VA1110-6ED42-0AA0?

Adjustment of the electronic trip unit for overload (Ir) and short-circuit (Im) is typically done via integrated buttons or a small rotary switch on the breaker face. Consult the product manual for precise instructions and parameter ranges.

Can the Siemens 3VA1110-6ED42-0AA0 be used in DC applications?

The Siemens 3VA1110-6ED42-0AA0 is designed and rated for AC applications only. Using it in DC circuits can lead to unsafe operation and device failure. Always verify the application voltage type.

What type of trip unit does the 3VA1110-6ED42-0AA0 utilize?

This circuit breaker features an advanced electronic trip unit. This allows for adjustable settings for overload and short-circuit protection. It offers enhanced selectivity and protection compared to thermal-magnetic types.

Is the Siemens 3VA1110-6ED42-0AA0 a thermal-magnetic or electronic breaker?

The Siemens 3VA1110-6ED42-0AA0 is an electronic trip unit breaker. This provides precise and adjustable protection characteristics. It offers superior performance for demanding applications.

What are the dimensions of the Siemens 3VA1110-6ED42-0AA0?

The approximate dimensions are 161mm in height, 104.5mm in width, and 70mm in depth. These compact dimensions aid in space-saving installations within electrical panels. Always refer to the official datasheet for exact measurements.

Does this breaker support communication capabilities for IIoT integration?

Standard models typically do not include built-in communication. However, optional communication modules can often be added to Siemens 3VA breakers. These modules enable integration with industrial control systems and IIoT platforms.

What is the mechanical endurance rating for this model?

The 3VA11 series molded case circuit breakers generally offer a mechanical endurance of approximately 20,000 switching cycles. This robust rating ensures reliable operation over a long service life under normal conditions.

What standards does the Siemens 3VA1110-6ED42-0AA0 comply with?

This circuit breaker complies with the international standard IEC 60947-2. This ensures it meets stringent requirements for low-voltage switchgear and controlgear. Adherence to these standards guarantees safety and performance.