Siemens 3VA5150-5EC31-0AA0 50A 3P 600V Circuit Breaker | AmpState

Meet the Siemens 3VA5150-5EC31-0AA0, a rugged 3-pole circuit breaker designed to protect panelboards, load centers, and electrical distribution systems from overloads and short circuits. With a 50 A rating and a 600 V maximum, it’s built to perform in demanding industrial and commercial environments while preserving the integrity of the original equipment specifications.

This model is specifically valued for replacement projects and spare stocking, helping you keep your bill of materials (BOM) aligned to the original part number. By choosing an authentic Siemens part, you ensure seamless integration with existing protection schemes and long-term reliability.

• Manufacturer / Part Number: Siemens 3VA5150-5EC31-0AA0
• Type: 3-pole circuit breaker
• Amperage: 50 A
• Voltage: 600 V
• Applications: panelboards, load centers, electrical distribution
• Fit & BOM: ideal replacement to keep your BOM aligned with the original part number

Why this breaker stands out:

• Reliable Siemens protection you can trust in critical power networks
• Compact, compatible form factor designed to slide into standard Siemens protection schemes
• Stocked by AmpState for fast, dependable dispatch
• Clear path to compatibility confirmation with expert support if needed

Use cases

• Retrofits in legacy panelboards where the original 3VA5150 family part is specified
• Spare inventory to minimize downtime during maintenance or component failure
• New installations that require a compliant, third-wire, 3-pole 50 A protection device

If you’re unsure about compatibility, AmpState is ready to help verify fit. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.