Siemens 3VA1180-4EE32-0AA0 3VA11 Series Molded Case Air Circuit Breaker 80A 3P 36kA

The Siemens 3VA1180-4EE32-0AA0 is a robust 3-pole, 80A molded case air circuit breaker from the 3VA11 series, engineered for reliable protection with a breaking capacity of 36kA. This circuit breaker offers exceptional operational stability and safety, featuring a high-performance molded case construction for demanding industrial environments. Its key advantages lie in its compact design, advanced tripping technology, and straightforward installation, making it a preferred choice for power distribution and circuit protection applications. The 3VA1180-4EE32-0AA0 integrates seamlessly into various electrical systems, providing critical safeguarding against overcurrents and short circuits.

Product Specifications

| Parameter                | Value                                       |

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

| Product Type             | Molded Case Air Circuit Breaker             |

| Series                   | 3VA11                                       |

| Model Number             | 3VA1180-4EE32-0AA0                          |

| Rated Current (In)       | 80 A                                        |

| Number of Poles          | 3                                           |

| Breaking Capacity (Icu)  | 36 kA                                       |

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

| Frame Size               | 100                                         |

| Tripping Unit Type       | Electronic, Adjustable                      |

| Mounting Type            | Fixed                                       |

| Terminal Type            | Screw Terminals                             |

| Protection Functions     | Overload, Short Circuit, Ground Fault (optional) |

| Standards                | IEC 60947-2                                 |

| Dimensions (H x W x D)   | 157.5 mm x 76.2 mm x 70 mm (approx.)        |

| Operating Temperature    | -25 to +70 °C                               |

Core Features & Market Positioning

The Siemens 3VA1180-4EE32-0AA0 stands out in the market due to its advanced electronic trip unit, which provides precise and adjustable protection against overloads and short circuits. This advanced tripping capability ensures enhanced equipment longevity and operational continuity, setting it apart from mechanical-only breakers. Its compact dimensions and fixed mounting design facilitate space-saving installations in control cabinets and power distribution boards, a critical advantage in modern industrial settings where space is at a premium. The 3VA11 series, including this 80A model, is recognized for its high reliability and adherence to international standards like IEC 60947-2, underscoring its suitability for critical infrastructure and demanding industrial applications where performance and safety are paramount.

Key Application Scenarios

This Siemens 3VA1180-4EE32-0AA0 circuit breaker is ideally suited for main and branch circuit protection in industrial facilities, commercial buildings, and power generation plants. It serves effectively in protecting motor circuits, transformers, and distribution panels from damaging overcurrents and short circuits. Its robust 36kA breaking capacity makes it capable of safely interrupting fault currents in high-power systems, ensuring personnel safety and minimizing equipment downtime. Common applications include safeguarding power supply lines to machinery, protecting outgoing feeders in switchgear, and serving as a reliable backup protection device in complex electrical networks.

Practical System Integration Guidance

Integrating the Siemens 3VA1180-4EE32-0AA0 into existing electrical systems is streamlined due to its standardized dimensions and fixed mounting capabilities. Ensure a secure connection by utilizing appropriate torque settings for the screw terminals, adhering to the manufacturer's recommendations to prevent thermal issues. For systems requiring ground fault protection, ensure the appropriate optional ground fault module is selected and correctly wired according to the wiring diagrams provided in the technical documentation. Proper termination of incoming and outgoing power cables is essential for maintaining the breaker's rated performance and ensuring safe operation.

Operation and Risk Mitigation

Operation of the 3VA1180-4EE32-0AA0 is straightforward, with its primary function being automatic interruption of power under fault conditions. Users can manually reset the breaker after a fault has been cleared. Risk mitigation is inherent in its design, featuring overcurrent and short-circuit protection to prevent equipment damage and electrical fires. Should the breaker trip, it is critical to identify and rectify the cause of the fault before resetting. Common troubleshooting involves checking for overloaded circuits, shorted wiring, or potential equipment malfunctions. Consult the product manual for specific fault code interpretation if an electronic trip unit with diagnostic features is utilized.

Scalability & Long-Term Value

The Siemens 3VA11 series, including the 3VA1180-4EE32-0AA0, offers significant long-term value through its compatibility with Siemens' broader industrial automation and power distribution portfolio. While this is a fixed-mount breaker, its integration capabilities with intelligent systems for monitoring and control enhance its scalability within a smart factory or IIoT environment. Future system expansions can leverage similar 3VA breakers or other Siemens protective devices, ensuring a cohesive and reliable electrical infrastructure. The robust construction and high-quality components contribute to an extended operational lifespan, minimizing the need for premature replacements and reducing total cost of ownership.

FAQs

What is the breaking capacity of the Siemens 3VA1180-4EE32-0AA0?

The Siemens 3VA1180-4EE32-0AA0 boasts a substantial breaking capacity of 36kA. This rating indicates its ability to safely interrupt high fault currents. It is crucial for protecting downstream equipment from severe damage during short-circuit events.

How do I reset the Siemens 3VA1180-4EE32-0AA0 after a trip?

To reset the Siemens 3VA1180-4EE32-0AA0 after a trip, ensure the fault condition has been cleared. Then, operate the manual release lever or button located on the front of the breaker. A firm push to the "OFF" position followed by a pull to the "ON" position typically completes the reset.

Can the Siemens 3VA1180-4EE32-0AA0 be used for motor protection?

Yes, the Siemens 3VA1180-4EE32-0AA0 can be effectively used for motor protection. Its adjustable electronic trip unit allows for setting specific overload and short-circuit thresholds to safeguard motors. Ensure settings are configured according to motor nameplate data and application requirements.