Siemens FXD63A150 150A 3P Circuit Breaker, Bolt-On | AmpState

Meet the Siemens FXD63A150 — a 150A, 3-pole bolt-on circuit breaker engineered for dependable protection in panelboards, load centers, and electrical distribution networks. This OEM Siemens device is designed to align perfectly with the original BOM, making it an ideal choice for replacement projects and stocking spares to keep maintenance on track.

• 150 A, 3-pole design provides robust three-phase circuit protection for demanding electrical systems
• Bolt-On mounting enables straightforward, secure installation in compatible enclosures
• Part Number FXD63A150 ensures exact fit and seamless BOM alignment with original equipment
• Perfect for replacement projects and spare stocking to minimize downtime during service or outages
• Available from AmpState with support to verify fit and compatibility — need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit

This Siemens circuit breaker is built for reliable performance in real-world electrical distribution scenarios. Use it to protect three-phase feeders in commercial or industrial panelboards and load centers, or as a ready-to-install spare that keeps your maintenance schedule on track. Choosing an OEM part like the FXD63A150 helps preserve system integrity, reduces calibration and rework, and ensures consistent operation with your existing Siemens components.

Ideal for: - Electrical contractors performing panel upgrades or replacements - Facility managers maintaining fleet-wide distribution safety - Service teams keeping critical equipment sets in service with ready spare parts

Why this matters: aligning the exact part number with your original BOM minimizes compatibility risk and streamlines procurement. The FXD63A150 is a purpose-built solution for reliable three-phase protection, designed to fit the same footprint and electrical characteristics you rely on, so you can install with confidence and reduce downtime.

If you’re ordering through AmpState, you’ll also have access to support for compatibility confirmation and quick assistance in identifying the right part for your panelboard or load center.