Siemens 3VA6340-6HM31-0AA0 Circuit Breaker, 400A, 3-Pole, 600V

Siemens 3VA6340-6HM31-0AA0 Circuit Breaker — a robust 3‑pole, 400 A protection device designed for demanding industrial electrical service, maintenance, and replacement projects.

This Siemens circuit breaker is built for three‑phase distribution environments, delivering reliable overcurrent protection with clear trip indication to minimize downtime. Use the part number 3VA6340-6HM31-0AA0 to confirm compatibility with your panel, equipment, and specific application requirements.

Key specifications

• Amperage: 400 A
• Poles: 3
• Voltage rating: 600 V
• Manufacturer: Siemens
• Part number: 3VA6340-6HM31-0AA0

What sets this apart

• Industrial-grade protection for heavy-load, three-phase circuits in manufacturing, processing, or large commercial environments
• Reliable Siemens trip technology with clear, actionable trip indication to minimize downtime
• Durable construction designed for field service, retrofit, or ongoing maintenance programs

Ideal use cases

• New installations in industrial control panels or switchgear
• Maintenance or replacement of aging protection devices in high-current feeders
• Retrofitting projects requiring a 400 A, 3-pole, 600 V solution

Installation and compatibility tips

Always verify fitment by part number and application requirements to avoid compatibility issues. If you’re unsure about matching a part number to your equipment, send us a message — we’re ready to help confirm fit and guide you to the right solution.

Why choose Siemens for protection?

Siemens is a trusted name in industrial electrical protection, delivering durable design and dependable performance for continuous operation in challenging environments. The 3VA6340-6HM31-0AA0 model is engineered to safeguard critical processes, helping you prevent overloads and short circuits while keeping downtime to a minimum.

Ready to secure your three‑phase system with high‑current, reliable protection? Add the Siemens 3VA6340-6HM31-0AA0 circuit breaker to your cart and ensure your equipment operates safely and efficiently.