Square D | PXF36700LSZ | Circuit Breaker | 3-Pole | 600V

Square D PXF36700LSZ is a purpose-built 3-pole circuit breaker engineered for three-phase protection at up to 600V. Ideal for maintenance, retrofit, and replacement projects where exact compatibility and reliable performance matter, this unit is designed to slot into compatible Square D panels with minimal downtime.

Core specifications at a glance

• Poles: 3-Pole
• Voltage rating: 600V
• Part number: PXF36700LSZ

What makes it stand out

Unlike generic breakers, the PXF36700LSZ is a legitimate Square D component, built to meet exacting standards for industrial and commercial panels. The 3-pole design provides coordinated protection across all three hot legs, which helps protect equipment and wiring in three-phase systems. Its 600V rating expands its use to higher-voltage applications where reliable interruption is essential.

Best use cases

• Replacing a failed or degraded three-pole breaker in a 600V panel
• Retrofitting older systems to restore reliable three-phase protection
• Maintenance tasks that require quick, compatible part replacements using the exact PXF36700LSZ reference

Installation and compatibility tips

Always verify fit and ratings against your panel’s specifications before ordering. The part number is the best reference for compatibility. When installing, follow standard electrical safety practices and local codes. If upgrading or replacing, ensure the panel supports a 3-pole, 600V device with the same mounting style and trip characteristics as the original.

Why choose Square D for your 3-phase protection?

Square D is known for durable, reliable circuit protection solutions that professionals trust. Choosing the PXF36700LSZ means you’re matching a legacy of performance with a part that is specifically cataloged for compatibility in Square D systems, reducing guesswork and downtime during critical maintenance windows.