Square D | PXF36900LI | Circuit Breaker | 900A | 3-Pole | 600V | Bolt-On

When upgrading or replacing a demanding three-phase feeder, the Square D PXF36900LI Circuit Breaker delivers reliable protection and a precise fit for industrial electrical panels. Rated at 900A, this 3-pole unit operates at 600V and features a bolt-on mounting for secure, durable installation in retrofit and replacement projects where exact specs matter.

• Amperage: 900 A
• Poles: 3-Pole
• Voltage: 600 V
• Mounting: Bolt-On
• Part number reference: PXF36900LI

Why this model stands out

• Maintenance, retrofit, and replacement suitability: Designed for scenarios where matching the exact ratings and form factor is essential to maintain electrical protection and panel compatibility.
• Secure bolt-on installation: The bolt-on mounting provides a sturdy mechanical connection, reducing movement and vibration concerns in busy industrial environments.
• 3-pole protection for 3-phase systems: Ideal for motors, feeders, and distribution circuits that rely on balanced, three-phase protection in heavy-duty applications.
• 600V industrial compatibility: Built to align with common industrial power distributions, ensuring reliable performance in demanding settings.

Who this is for and practical use cases

• Electrical contractors and maintenance teams performing panel upgrades or replacements in manufacturing facilities, warehouses, and process plants.
• Facilities undergoing retrofits to modernize protection for high-demand equipment and large motors.
• Owners and technicians needing a precise, compatible replacement part to minimize downtime and ensure continued compliance with system specs.

Important compatibility note

Compatibility: Confirm fit and ratings before ordering. The part number PXF36900LI is the best reference for ensuring proper match with your Square D installations.