Siemens 3VA1150-6ED42-0AA0 3VA11 Series Molded Case Circuit Breaker 50A 4P 70kA
The Siemens 3VA1150-6ED42-0AA0 is a robust 3VA11 Series molded case circuit breaker engineered for reliable overcurrent protection in industrial applications. This 50A, 4-pole breaker boasts a breaking capacity of 70kA, ensuring superior safety and operational continuity. Its advanced thermal-magnetic trip unit provides precise current sensing, while its compact design facilitates easy integration into various electrical systems. The 3VA11 series is recognized for its high performance, durability, and adherence to international standards, making it a preferred choice for safeguarding power distribution networks.
Product Specifications
| Feature | Specification |
| :------------------ | :------------------------------------------ |
| Series | 3VA11 |
| Type | Molded Case Circuit Breaker |
| Rated Current (A) | 50 |
| Number of Poles | 4 |
| Breaking Capacity (kA) | 70 |
| Trip Unit Type | Thermal-Magnetic |
| Mounting Type | DIN Rail / Fixed |
| Voltage Rating (V) | 400/415 |
| Frequency (Hz) | 50/60 |
| Protection Class | IP20 (with connected conductors) |
| Standards | IEC 60947-2, EN 60947-2, VDE 0660 Part 100 |
Core Features & Market Positioning
The Siemens 3VA1150-6ED42-0AA0 distinguishes itself through its exceptional reliability and robust construction, positioning it as a top-tier solution for demanding industrial environments. Its high breaking capacity of 70kA offers significant protection against short circuits, minimizing damage to downstream equipment and ensuring personnel safety. The integrated thermal-magnetic trip unit provides a dual-level protection mechanism, guarding against both overloads and short circuits with distinct trip characteristics. This combination of performance and protection makes the 3VA11 series a competitive offering against other leading brands, particularly in sectors requiring dependable power distribution and robust safety features.
Key Application Scenarios
This Siemens 3VA1150-6ED42-0AA0 molded case circuit breaker is ideally suited for protecting main power feeds, branch circuits, and motor circuits in various industrial settings. Its four-pole configuration is essential for three-phase systems requiring neutral conductor protection or complete isolation. Common applications include manufacturing plants, data centers, and commercial buildings where consistent power quality and reliable circuit protection are paramount. The 70kA interrupting rating makes it suitable for installations with high fault current potential, such as those near utility substations or large generator banks.
Practical System Integration Guidance
Integrating the Siemens 3VA1150-6ED42-0AA0 into existing electrical panels is straightforward due to its standard DIN rail mounting capability and compact dimensions. Ensure that the ambient temperature is within the operational limits specified by Siemens to maintain accurate tripping performance. For optimal safety and compliance, always utilize appropriately sized conductors and ensure secure connections to the breaker terminals. Refer to the official Siemens documentation for detailed wiring diagrams and torque specifications to prevent overheating and ensure long-term reliability of the installation.
Operation and Risk Mitigation
Operating the Siemens 3VA1150-6ED42-0AA0 involves understanding its trip mechanism. The thermal element responds to sustained overcurrents, preventing damage from gradual overloads, while the magnetic element provides instantaneous tripping during severe short circuits. To mitigate risks, regular visual inspections of the breaker and its connections are recommended. Avoid manually resetting the breaker immediately after a trip; investigate the cause of the fault first. In the event of repeated tripping, consult a qualified electrician to diagnose potential system issues, such as undersized wiring or equipment malfunction.
Scalability & Long-Term Value
The 3VA11 series, including the 3VA1150-6ED42-0AA0, offers inherent long-term value through its durable design and compatibility with Siemens' broader industrial automation portfolio. While this specific model is a fixed-type breaker, its reliability ensures extended service life in critical applications. For systems requiring future expansion or enhanced monitoring capabilities, Siemens offers accessories and companion products that can integrate with the 3VA platform, facilitating a gradual transition towards more intelligent power management solutions within an IIoT framework.
FAQs
What is the breaking capacity of the Siemens 3VA1150-6ED42-0AA0?
This breaker has a significant breaking capacity of 70 kA. It is designed to safely interrupt high fault currents.
This rating ensures protection against severe short circuits. It is vital for safeguarding electrical systems in industrial settings.
A 70kA rating indicates robust protection in areas with high fault current potential. This provides enhanced safety and system reliability.
What type of trip unit does the Siemens 3VA1150-6ED42-0AA0 use?
The 3VA1150-6ED42-0AA0 features a thermal-magnetic trip unit. This offers dual protection against overloads and short circuits.
The thermal element responds to sustained overcurrents, preventing damage from gradual overloads. The magnetic element provides rapid tripping during severe short circuits.
This combination ensures comprehensive protection for electrical circuits and connected equipment. It is a standard and reliable protection technology.
Can the Siemens 3VA1150-6ED42-0AA0 be used for motor protection?
Yes, this breaker can be used for motor protection with appropriate settings. Its thermal-magnetic trip unit offers adjustable overload protection.
Careful setting of the thermal element is crucial for effective motor protection. It must be coordinated with the motor's full load current.
Consult Siemens documentation for specific guidance on using the 3VA1150-6ED42-0AA0 for motor applications to ensure optimal performance and safety.
