Siemens FXD63B175 - 175 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens FXD63B175—a robust 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a 175A rating and a 600V capacity, this unit is built to handle demanding residential, commercial, and light industrial environments while staying secure and reliable.

Why the FXD63B175 stands out

• Secure bolt-on mounting: a rigid, vibration-resistant bus connection minimizes movement and loosening in demanding installations, helping maintain consistent protection over time.
• Thermal-magnetic trip unit: combines thermal protection for overload conditions with magnetic instantaneous trip for fast response to short circuits, delivering stable, repeatable protection performance.
• 3-pole design: ensures simultaneous interruption of all conductors in 3-phase systems, preserving balance and safety in complex panel layouts.
• 600V, 175A rating: engineered for higher-voltage distribution with ample headroom for modern electrical loads, while preserving quick, reliable tripping when needed.
• OEM compatibility: designed to pair with matching Siemens OEM load centers and panelboards, simplifying installation and ensuring trusted performance within compatible systems.
• Versatile applications: suitable for residential, commercial, and light-industrial panels where dependable branch circuit protection is essential.

Technical snapshot

• Manufacturer: Siemens
• Part Number: FXD63B175
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 175A
• Voltage: 600V
• Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Feeding 3-phase distribution in small commercial panels or light-industrial subpanels where reliable protection is critical.
• Replacing incumbent 3-pole breakers in compatible Siemens OEM load centers to restore solid protection performance.
• Providing robust branch-circuit protection for equipment with higher current demands in retrofit projects.

Practical guidance for best results

• Pair this breaker with compatible Siemens load centers and panelboards to ensure seamless fit and predictable trip behavior.
• Use in installations where vibration or mechanical stresses are a consideration, as bolt-on mounting offers a more rigid connection compared to some plug-on designs.
• Follow applicable electrical codes and installation instructions for safe, compliant setup and maintenance.

Choose the Siemens FXD63B175 for a trusted, high-capacity protection solution that aligns with Siemens’ engineering standards and is ready to perform in residential, commercial, and light industrial settings. Built for durability, precise protection, and straightforward installation, it’s a dependable choice for modern electrical infrastructure.