Siemens MBKBC3 100A 3P 480V Circuit Breaker | AmpState

The Siemens MBKBC3 100A 3P 480V circuit breaker is purpose-built for reliable protection in panelboards, load centers, and broader electrical distribution systems. Designed for professionals who value precise part matching, this breaker offers a direct part-number match essential for fast, accurate replacements and streamlined inventory management.

Why the MBKBC3 stands out

• Direct part-number match: Simplify ordering, reduce mis-purchases, and keep spare inventory aligned with your exact Siemens components.
• 100 A, 3-pole configuration: Delivers three-phase protection suitable for commercial and industrial applications that rely on balanced distribution and robust fault control.
• 480V operating capability: Built to handle higher voltage distributions common in industrial panels and electrical rooms, ensuring dependable interruption when needed.
• Trusted Siemens engineering: Leveraging Siemens’ proven design and manufacturing standards for long-term reliability in demanding environments.
• Availability through AmpState: Ready-to-ship when you need to secure or upgrade your protection schemes, with support to verify fit or alternatives if required.

Ideal use cases and who benefits most

• Maintenance teams: Keep a focused spare inventory of exact-match breakers to minimize downtime during panel servicing or protection upgrades.
• Panel builders: Ensure you’re specifying a compatible, factory-approved device that aligns with Siemens bus assemblies and mounting footprints.
• Electrical distributors: Stock reliable, easy-to-identify parts that reduce order errors and installation delays in larger projects.
• Project upgrades: When replacing legacy protections in three-phase 480V systems, the MBKBC3 provides a straightforward, compliant option.

Practical considerations and best practices

Before installation, confirm that the breaker’s mounting style and bus connection align with your panelboard or load center. While the MBKBC3 is a direct-fit option for many Siemens-compatible assemblies, AmpState can help verify compatibility if you’re balancing multiple panel configurations. Follow standard electrical safety protocols and local electrical codes during any replacement or installation.

Technical snapshot

• Siemens
• Part Number: MBKBC3
• Amperage: 100 A
• Poles: 3
• Voltage: 480V

If you’re unsure about exact fit for your panel or distribution setup, our team is ready to help you confirm compatibility. Message us with your panel model, bus type, and any other relevant details, and we’ll guide you toward the right Siemens MBKBC3 solution for your project.