Siemens FXD63B150 150A 3P 600V Circuit Breaker, Bolt-On | AmpState

The Siemens FXD63B150 bolt-on circuit breaker is a trusted solution for reliable electrical protection in panelboards, load centers, and distributed electrical systems. Designed for retrofit work and maintenance planning, this 150-amp, 3-pole unit helps you keep your inventory and part numbers consistent while delivering dependable performance when it matters most.

• Amperage: 150 A
• Poles: 3
• Voltage rating: 600V
• Mounting: Bolt-On
• Manufacturer: Siemens
• Part Number: FXD63B150
• Product Type: Circuit Breaker

The bolt-on design provides a secure, durable connection that stands up to demanding environments often found in industrial and commercial installations. With a 3-pole configuration, it protects three-phase circuits, making it ideal for modern electrical distribution setups where consistent, compliant protection is essential.

Ideal use cases

• Retrofit projects where existing equipment requires a specific part number for compatibility and stock management
• Maintenance planning for panelboards and load centers that rely on reliable Siemens protection components
• New installs or service upgrades in electrical distribution systems requiring a 150 A, 3-pole, 600V breaker

Why this matters

• Part-number consistency simplifies ordering and inventory control, reducing downtime during replacements
• Siemens engineering and design ensure alignment with compatible panelboards and distribution equipment
• Practical, field-proven protection for three-phase circuits with robust mechanical mounting

Compatibility and support

Designed for use in Siemens panelboards and load centers, the FXD63B150 is a precise fit for applications that require a reliable 150 A, 3-pole 600V bolt-on breaker. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit. This product is available from AmpState.