Siemens 5SY63167 16A 3P 400V Circuit Breaker | AmpState

Siemens 5SY63167 is a rugged, everyday-use circuit breaker designed to protect panelboards, load centers, and electrical distribution networks. With a 3-pole design, it provides reliable protection for 400V three-phase systems, and a 16 A rating that balances circuit protection with practical load performance.

• OEM-grade part for BOM accuracy: The 5SY63167 part number ensures your assemblies stay aligned with Siemens’ original specifications, simplifying maintenance and audits.
• Three-pole, 400V protection: Specifically suited for three-phase distribution where consistent trip characteristics across all phases are essential.
• 16 A trip/holding capability: Supports common commercial and light industrial circuits while safeguarding equipment and wiring from overloads.
• Ready for replacements and spares: A dependable option to keep in stock, reducing downtime during servicing or panel upgrades.
• AmpState support: Not sure if this is the right fit? AmpState offers help to confirm compatibility with your panelboard or distribution setup.

This circuit breaker is ideal for professionals performing replacement projects, panel refurbishments, or ongoing spare stocking to maintain BOM integrity. It fits Siemens panelboards and distribution equipment that specify the 5SY63167 part, delivering consistent performance where uptime matters—data centers, manufacturing floors, and commercial facilities included.

Why choose this Siemens 5SY63167? It combines OEM reliability with practical, real-world applicability: you get exact form, fit, and function for your existing installations, fewer surprises during maintenance, and a straightforward path to keeping electrical systems energized and protected.

If you’re updating a panel or aligning inventory with the original design, the 5SY63167 from AmpState is a trustworthy choice. It delivers clear compatibility, straightforward replacement workflows, and the protection you expect from Siemens engineering.