Siemens 3VA6340-7JQ31-0AA0 Circuit Breaker, 400A, 3-Pole, 600V

Meet the Siemens 3VA6340-7JQ31-0AA0 Circuit Breaker—the robust solution for protecting high-amp, three-phase power in industrial settings. Rated at 400 A with 3 poles and a 600 V maximum, this unit is engineered to handle demanding electrical loads while ensuring precise fault isolation and safe shutdown when faults occur.

Why this model stands out

• Exact fit for Siemens systems: Designed to align with Siemens low-voltage distribution architectures, enabling straightforward replacement and reliable performance in existing panels and switchboards.
• High-current, three-phase protection: The 400 A rating and 3-pole configuration provide comprehensive protection for feeders, large motors, and complex automation setups.
• Durable industrial reliability: Built to endure the rigors of manufacturing floors, process lines, and heavy-duty electrical environments while maintaining stable protection characteristics.
• Clear identification for compatibility: Part number 3VA6340-7JQ31-0AA0 ensures you’re selecting the exact device needed for your application and replacement strategy.

Key specifications

• Manufacturer: Siemens
• Part Number: 3VA6340-7JQ31-0AA0
• Product Type: Circuit Breaker
• Amperage: 400 A
• Poles: 3
• Voltage: 600 V

Ideal use cases

• Main feeder protection in industrial distribution panels and switchgear
• Protection for three-phase motors and large drive systems
• Panel upgrades or replacements within Siemens-installed facilities
• Maintenance and replacement projects where compatibility with existing Siemens components is critical

How to verify compatibility

Use the part number 3VA6340-7JQ31-0AA0 to confirm fit for your specific application. Check that your installation requirements (amperage, voltage, and pole configuration) align with this device. If you’re unsure about exact compatibility with your panel or system, send us a message and we’ll help confirm fit and provide guidance on integration and replacement strategy.

What you gain with this Siemens circuit breaker

• Consistent protection aligned with Siemens electrical ecosystems, reducing integration risk during maintenance or upgrades
• Reliable performance for high-demand industrial environments, supporting uptime and machine safety
• Streamlined procurement with a clearly identifiable part number that simplifies stocking and replacements

Whether you’re upgrading an aging panel, performing routine maintenance, or replacing a failed unit, the Siemens 3VA6340-7JQ31-0AA0 Circuit Breaker delivers precise, dependable protection for three-phase power at 600 V. Reach out to confirm compatibility and get expert guidance on selecting the right Siemens part for your application.