Square D | PXF36900LIZ | Circuit Breaker | 900A | 3-Pole | 600V

Designed for demanding industrial electrical setups, the Square D PXF36900LIZ circuit breaker delivers reliable overcurrent protection where exact specifications matter. This 900-amp, 3-pole unit is built to stand up to heavy-duty distribution needs, making it an ideal choice for retrofit, maintenance, or replacement projects in commercial or industrial environments.

Key specifications at a glance

• Amperage: 900A
• Poles: 3-Pole
• Voltage rating: 600V
• Series/output: PXF family (Square D)
• Application: Protection for industrial distribution panels and equipment against overloads and short circuits

What makes this breaker stand out

Choosing the PXF36900LIZ means prioritizing compatibility with Square D panels designed for higher current protection. The 3-pole configuration provides synchronized protection across phases, reducing the risk of imbalance during fault conditions. With a 600V rating, it supports common commercial and industrial electrical systems, helping you maintain safe, compliant operation in demanding environments.

Ideal use cases

• Retrofit projects in facilities upgrading to higher current protection while preserving panel compatibility
• Maintenance replacements for legacy Square D installations that require exact part matching
• Industrial equipment protection in manufacturing lines, data centers, and large mechanical systems

Compatibility and purchasing tips

For accurate fit, rely on the part number PXF36900LIZ as the primary reference. Confirm the breaker’s fit and ratings against your panel labeling and system requirements before ordering. If you’re matching against a legacy Square D setup, this 3-pole, 900A unit aligns with panels and buses designed for the PXF series and high-current protection needs.

Practical installation considerations

• Ensure the panel accepts 900A, 3-pole devices and that the bus configuration is compatible with the PXF series
• Verify torque and termination requirements per manufacturer guidelines to maintain reliable trip performance
• Inspect surrounding circuitry and conductor sizing to support a 900A rating safely

When you need a dependable, specification-matched solution for heavy-duty protection, the Square D PXF36900LIZ delivers the exact performance you require. Use the part number as your compatibility anchor, and choose this 900A, 3-pole, 600V breaker for precise, long-lasting protection in your critical electrical infrastructure.