Siemens 3VA5450-7EC31-0AA0 500A 3P 600V Circuit Breaker | AmpState

Meet the Siemens 3VA5450-7EC31-0AA0—a purpose-built circuit breaker engineered to protect panelboards, load centers, and broad electrical distribution networks. With a 3-pole configuration, a 500 A rating, and a 600 V maximum, this unit is designed for demanding commercial and industrial environments where dependable, precise protection matters most.

Why this model stands out

• for main feeds and critical branch circuits, helping you safeguard equipment and maintain stable power delivery.
• High-current capability at 500 A supports substantial distribution needs without compromising protection or response time.
• 600 V rating ensures compatibility with typical industrial electrical distribution schemes, delivering reliable performance across a variety of systems.
• Part-number specific retrofit compatibility ideal for maintenance planning and retrofit work where keeping the same part number minimizes downtime and engineering changes.
• Siemens reliability drawn from the trusted 3VA family, offering consistent trip characteristics, predictable behavior, and long service life.
• Availability through AmpState means swift sourcing to keep projects on track.

Ideal use cases and who benefits

• Retrofit projects in aging facilities where you need a drop-in replacement that matches existing part numbers and electrical characteristics.
• New or expanded panelboards and load centers requiring robust 500 A protection for main feeds or high-demand circuits.
• Maintenance planning for commercial buildings, data centers, manufacturing floors, and other facilities with complex distribution networks.

Practical considerations

When selecting a breaker for Siemens panelboards or compatible distribution systems, the 3VA5450-7EC31-0AA0 provides a seamless fit for applications demanding high current and reliable protection. Its exact trip curve and mounting footprint are designed to integrate with existing Siemens configurations, reducing the risk of compatibility issues during upgrades or repairs.

If you’re unsure about fit or compatibility, AmpState offers expert assistance to confirm whether this part number is right for your panel or distribution setup. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm the fit.

Technical at a glance

• Manufacturer: Siemens
• Part Number: 3VA5450-7EC31-0AA0
• Type: Circuit Breaker
• Amperage: 500 A
• Poles: 3
• Voltage: 600 V
• Availability: AmpState