Siemens 6LL61 400A Circuit Breaker | AmpState

Siemens 6LL61 400A Circuit Breaker from AmpState is built for everyday electrical work, delivering reliable circuit protection where it matters most—panelboards, load centers, and electrical distribution systems. This exact part is ideal for replacement projects and as a smart spare that keeps your bill of materials aligned with the original part number, so maintenance and upgrades stay streamlined.

• 400 A amperage rating provides robust main circuit protection for high-demand commercial and industrial circuits.
• Designed for panelboards and load centers—a precise fit for Siemens-based distribution setups and integrated electrical systems.
• Original part number alignment ensures compatibility with existing documentation, wiring diagrams, and service records, reducing guesswork during replacements.
• Trusted Siemens engineering delivers consistent tripping characteristics and dependable performance over time.
• AmpState availability means you can source this part quickly for repairs, spares, or BOM maintenance.
• Clear compatibility support—if you’re unsure about fit, you can reach out and our team will help confirm compatibility with your panel or distribution setup.

Use cases you’ll appreciate include restoring protection on large feeders, upgrading main distribution paths, or stocking a spare that matches the original equipment documentation. The 6LL61 is particularly well-suited for applications where a high-current, reliable breaker is essential to maintaining uptime and safety in commercial facilities, industrial environments, and service panels.

Why choose this Siemens 6LL61 400A Circuit Breaker

Choosing the exact Siemens part avoids the common pitfalls of aftermarket substitutes, such as mismatched trip curves or wiring accommodations. With the 6LL61, you get a component designed to slot into Siemens-compatible panelboards and load centers, supporting consistent operation, easier maintenance, and a smoother BOM workflow.

Who it's ideal for

Electrical contractors, facilities managers, maintenance teams, and panel builders who prioritize precise part matching, reliable protection, and a straightforward sourcing path for spare inventory.

If you need help confirming fit or compatibility with your specific equipment, send us a message and we’ll help you verify the correct part for your setup.