Siemens 5SY63257 25A 3P 400V Circuit Breaker | AmpState

Introducing the Siemens 5SY63257 25A 3P 400V Circuit Breaker from AmpState — a precise, dependable protection solution designed for demanding electrical distributions. This 3-pole unit is built to slot into panelboards and load centers, delivering reliable overcurrent protection for three-phase systems at up to 400V with a 25-amp rating.

Key reasons facilities, technicians, and distributors choose this breaker:

• Three-pole (3P) design that fits standard Siemens panelboards and distribution boards used in commercial and industrial settings
• 25 A rating targets protection for branch circuits, reducing the risk of equipment damage from overloads
• 400V operating voltage aligns with common three-phase power configurations found in many facilities
• Replacement-ready part that keeps your BOM aligned to the original Siemens part number 5SY63257, simplifying procurement and maintenance plans
• Strategic stocking option for rapid downtime mitigation and consistent part availability through AmpState

What makes this Siemens circuit breaker stand out?

• Exact OEM part: 5SY63257, ensuring seamless compatibility with existing protection schemes and control gear
• Designed specifically for panelboards and load centers, delivering dependable disconnection when protection limits are reached
• Part of AmpState’s curated inventory with expert support to help you confirm fit and compatibility for your installation

Use cases and practical scenarios:

• Replacement in established Siemens panelboards where the original part number is 5SY63257
• Strategic spare for facilities managing multiple Siemens protection devices, simplifying procurement and BOM consistency
• Maintenance and upgrade projects across commercial or industrial sites that require reliable three-phase protection

Need help confirming fit? Message AmpState to verify compatibility and ensure the 5SY63257 will integrate smoothly with your specific panelboard model and distribution setup.