Siemens 3VA6340-0HM31-0AA0 400A 3P 480V Circuit Breaker | AmpState

Meet the Siemens 3VA6340-0HM31-0AA0 — a rugged three-pole circuit breaker crafted for serious panel protection in 3-phase electrical systems. With a 400 A rating and 480 V operation, this device is built to safeguard panelboards, load centers, and electrical distribution networks while delivering reliable performance when it matters most. It’s a smart pick for maintenance teams and panel builders who demand exact part-number compatibility for efficient sourcing, stock management, and rapid field replacements. Available from AmpState, this part-number-matters solution keeps your spare inventory aligned with your Siemens installations.

Why this Siemens circuit breaker stands out

• Exact part-number compatibility — 3VA6340-0HM31-0AA0 is designed to fit Siemens panelboards and distribution assemblies, reducing sourcing risk and downtime from mismatches.
• High-current, three-phase protection — 400 A capacity across 3 poles in a 480 V system, ideal for protecting heavy loads and motor-driven equipment.
• Strategic stocking for maintenance — A dependable spare that shortens repair windows and keeps critical systems online during service calls.
• Trusted Siemens reliability — Built to meet standard electrical distribution protection requirements, ensuring consistent performance in demanding environments.
• Availability through AmpState — Ready-to-ship status with expert compatibility support to confirm fit when you need it most.

Practical use cases

• Stocking a dedicated spare for facilities with 3-phase, 480 V distribution to minimize downtime during faults or scheduled maintenance.
• Replacement in Siemens panelboards and load centers in industrial settings where exact part-number match matters for warranty and performance guarantees.
• Spec-driven projects where panel builders specify Siemens components for consistent electrical protection and compatibility across assemblies.
• Retrofits and upgrades in manufacturing floors where reliable overcurrent protection is critical for uptime and safety compliance.

What makes it different from generic breakers

Unlike generic substitutes, the Siemens 3VA6340-0HM31-0AA0 is engineered to pair precisely with Siemens equipment, aligning with standard mounting, trip characteristics, and electrical distribution expectations. The direct part-number match minimizes cross-reference work, streamlines procurement, and delivers predictable performance during overcurrent events—crucial for mission-critical panel protection and long-term maintenance planning.

How to confirm fit and install

Begin by verifying the exact part number 3VA6340-0HM31-0AA0 against the target Siemens equipment. Confirm system voltage (480 V), the three poles (3P), and the amperage rating (400 A) to ensure proper coverage for your three-phase distribution. If you need a second pair of eyes on compatibility, AmpState support is ready to help confirm fit and suggest appropriate alternatives within the Siemens line.

Ready to secure dependable, Siemens-aligned protection for your panelboards and load centers? Add the Siemens 3VA6340-0HM31-0AA0 400 A 3P 480V circuit breaker from AmpState to your cart and simplify your electrical distribution maintenance and procurement.