Square D | PXF36600LSIZ | Circuit Breaker | 600A | 3-Pole | 600V

Meet the Square D PXF36600LSIZ circuit breaker — a rugged, purpose-built protection device crafted for demanding electrical installations. With a 600A rating, a 3-pole configuration, and a 600V capacity, this breaker is designed to reliably guard three-phase power networks and keep critical equipment protected.

Designed for seamless integration in compatible Square D panels, the PXF36600LSIZ is ideal for maintenance, retrofit, and replacement projects where exact specifications matter. The part number itself is your best reference for compatibility, ensuring you match the correct frame, trip characteristics, and connection method to your system.

Key specifications at a glance

• Amperage: 600A
• Pole configuration: 3-Pole
• Voltage rating: 600V
• Intended use: maintenance, retrofit, and replacement in compatible Square D applications

Why this Square D PXF breaker stands out

• Provides dependable protection for high-demand three-phase circuits in industrial and commercial environments
• Consistent fit and performance within Square D’s PXF family, helping avoid fitment and compatibility issues during replacement
• The PXF36600LSIZ part number serves as the most reliable reference for ordering accuracy and system compatibility

Ideal use cases

Use this 600A, 3-pole, 600V circuit breaker when you need robust protection for a main or feeder role in a three-phase distribution network. It’s well-suited for:

• Existing installations that require precise electrical characteristics and mechanical fit
• Retrofits where minimizing panel downtime and preserving compatibility with legacy Square D systems is critical
• Facilities with significant electrical load demands, needing reliable interruption capability across all three phases

Important note: Always confirm fit and ratings before ordering. The PXF36600LSIZ part number is the most accurate reference to ensure your panel and system requirements are met without surprises.