Siemens 3VA94730QA00 Circuit Breaker, 400A, 3-Pole

Meet the Siemens 3VA94730QA00 circuit breaker — a purpose-built solution for demanding industrial electrical service, maintenance, and replacement projects. Designed to deliver dependable three-phase protection, this 3-pole unit (3P) carries a robust 400 A rating to safeguard large electrical feeders and distribution circuits with precision and reliability.

• Amperage: 400 A
• Poles: 3 (three-pole, 3P) configuration for complete three-phase protection
• Manufacturer: Siemens
• Part Number: 3VA94730QA00
• Application: Ideal for industrial service, routine maintenance, and replacement projects requiring a compatible Siemens breaker

Why this breaker stands out: it’s built to withstand the rigors of industrial environments while delivering predictable tripping performance when faults occur. The 3VA94730QA00 is not just a component—it's a strategic choice for reliability in three-phase systems, helping minimize downtime and protect expensive equipment connected to high-load circuits.

Key use cases include protecting large feeders, motor control centers, and other three-phase infrastructure in industrial facilities. It’s particularly well-suited for projects where exact part-number compatibility is essential. To ensure a perfect fit, verify the application requirements and confirm compatibility using the part number 3VA94730QA00 before purchasing or replacing existing breakers.

What to expect in practice: a rugged, industrial-grade circuit breaker designed to plug into compatible Siemens panels and gear, backed by Siemens’ engineering standards. If you’re updating an aging installation or stocking a spare for critical maintenance, this 3P, 400 A unit offers a clear path to reliable, long-term protection for your three-phase electrical system.

Compatibility reminder: Always confirm fit by part number (3VA94730QA00) and review your specific application requirements to ensure seamless integration and compliant operation within your equipment lineup.