Siemens 3VA6340-6HL31-0AA0 400A 3P 480V Circuit Breaker | AmpState

Introducing the Siemens 3VA6340-6HL31-0AA0, a purpose-built circuit breaker engineered for reliable protection in panelboards, load centers, and electrical distribution networks. Rated at 400 A across three poles, it provides solid, three-phase protection for demanding 480 V systems—precisely where uptime matters.

• Direct part-number match for Siemens gear: Simplifies stocking, maintenance planning, and spare inventory with a component that fits seamlessly into your existing Siemens ecosystem.
• 3-pole design for balanced three-phase protection: Ideal for 480V three-phase feeders, distributing power safely across phases with consistent trip behavior.
• 400 A current rating: Protects main feeders and distribution circuits from overloads while enabling clean segmentation of loads.
• Optimized for panelboards and load centers: This breaker is purpose-built for integration in standard electrical distribution assemblies, reducing installation tweaks and misfits.
• AmpState availability: Ready to ship from AmpState; their team can help confirm part compatibility and fit.

Key specifications

• Manufacturer: Siemens
• Part number: 3VA6340-6HL31-0AA0
• Product type: Circuit Breaker
• Amperage: 400 A
• Poles: 3
• Voltage: 480 V

Ideal use cases

Use this 3VA6340-6HL31-0AA0 breaker wherever you need robust three-phase protection for 480V machinery and distribution panels. It’s particularly well-suited for:

• Industrial manufacturing lines with high current draw and strict downtime requirements
• Commercial facilities with Siemens panelboard ecosystems and modular distribution layouts
• Service upgrades or spare-inventory stocking for preventive maintenance programs
• Protection of large feeders and critical loads in data centers or automation cabinets

Installation and compatibility tips

To ensure a seamless fit, verify that your enclosure and bus arrangement match Siemens’ 3VA6340-6HL31-0AA0 specifications and that the panelboard is rated for 480 V three-phase service. Keep a dedicated spare in inventory to minimize downtime during maintenance windows, and rely on AmpState’s support to confirm fit before ordering if you’re reconfiguring existing panels.

Why choose this over substitutes

Choosing the exact part-number match reduces the risk of compatibility gaps that can lead to nuisance trips or improper protection. This Siemens breaker is designed to integrate with Siemens panelboards and distribution gear, delivering predictable protection aligned with standard Siemens protection curves and mounting patterns.

Ready to secure reliable, industry-grade protection with a trusted Siemens part? Order the 3VA6340-6HL31-0AA0 from AmpState and keep your electrical distribution running smoothly.