Siemens 5SY63147 3A 3P 400V Circuit Breaker | AmpState

Meet the Siemens 5SY63147—a precise, 3-pole, 3A, 400V circuit breaker designed to protect your panelboards, load centers, and electrical distribution networks with dependable performance. This exact part is ideal for replacement projects and stocking spares when you need to keep your bill of materials aligned to the original part number.

• Part and specs: Siemens 5SY63147, 3 A, 3 poles, 400 V, type: circuit breaker, manufacturer: Siemens.
• Exact fit for OEM systems: Built to integrate with Siemens panelboards and compatible distribution equipment, helping preserve original electrical characteristics and fit.
• Smart replacement strategy: Perfect for planned replacements and spare inventory to maintain BOM alignment and minimize downtime on critical circuits.
• Versatile use: Suitable for three-phase distribution in commercial or industrial settings where stable protection across phases is essential.
• Availability: Available from AmpState, with assistance available to confirm fit and compatibility against your existing equipment.

Use cases and practical guidance:

• Replacing a worn or failed 3P 400V circuit breaker in legacy Siemens installations where original part consistency is crucial.
• Stocking a reliable spare for ongoing maintenance programs, ensuring your assemblies stay aligned to the original part numbers.
• Upgrading service panels or distribution boards without sacrificing compatibility or travel-time to verify fit.

If you’re unsure about compatibility, a quick check is simple: verify that your current part number matches 5SY63147 and confirm that your system operates at 400V with a 3-pole configuration. If you need a second pair of eyes to validate fit, message AmpState and we’ll help confirm the right match for your panelboard or load center.