Siemens 5SY63027 2A 3P 400V Circuit Breaker | AmpState

Meet the Siemens 5SY63027 2A 3P 400V Circuit Breaker — a dependable, OEM-grade protection device designed for Siemens panelboards, load centers, and electrical distribution systems.

The 5SY63027 is a 3-pole (3P) circuit breaker rated at 2 amperes (2 A) and configured for 400 V applications. This compact yet robust unit fits into standard Siemens hardware and helps you keep your electrical distribution safe and compliant during maintenance, replacement, or stocking spare parts.

Why choose this exact part?

• OEM compatibility: Manufactured by Siemens and identified by part number 5SY63027, ensuring you maintain the integrity of your original BOM.
• Three-phase protection: With 3 poles, it cleanly protects a 3-phase circuit common in commercial and industrial setups.
• Precise amperage: At 2 A, it provides targeted protection for light-duty or control circuits that require lower current ratings.
• Voltage readiness: Rated for 400 V systems, aligning with typical European and many industrial distribution networks.
• Stockable spare: Ideal for maintenance inventories so you can quickly restore service without guessing on cross-compatibility.

Applications and use cases

• Replacement projects: swap in the Siemens 5SY63027 when the original part fails or wears out, preserving panelboard and load center protection schemes.
• Maintenance spares: keep this exact part on hand to stay aligned with the original BOM and avoid mis-matched substitutes.
• Three-phase distribution: perfect for three-phase circuits in commercial spaces, manufacturing, or data centers where 400 V distribution is standard.

Buying with confidence

AmpState supplies genuine Siemens parts, and if you’re unsure about compatibility with your equipment, we’re here to help. Message us to confirm fit or discuss any part-number questions, and we’ll verify the best match for your panelboard or distribution setup.